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1da177e4 LT |
1 | /* |
2 | * Authors: | |
3 | * Copyright 2001, 2002 by Robert Olsson <robert.olsson@its.uu.se> | |
4 | * Uppsala University and | |
5 | * Swedish University of Agricultural Sciences | |
6 | * | |
7 | * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> | |
8 | * Ben Greear <greearb@candelatech.com> | |
96de0e25 | 9 | * Jens Låås <jens.laas@data.slu.se> |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | * | |
16 | * | |
17 | * A tool for loading the network with preconfigurated packets. | |
4ec93edb | 18 | * The tool is implemented as a linux module. Parameters are output |
1da177e4 LT |
19 | * device, delay (to hard_xmit), number of packets, and whether |
20 | * to use multiple SKBs or just the same one. | |
21 | * pktgen uses the installed interface's output routine. | |
22 | * | |
23 | * Additional hacking by: | |
24 | * | |
25 | * Jens.Laas@data.slu.se | |
26 | * Improved by ANK. 010120. | |
27 | * Improved by ANK even more. 010212. | |
28 | * MAC address typo fixed. 010417 --ro | |
29 | * Integrated. 020301 --DaveM | |
30 | * Added multiskb option 020301 --DaveM | |
31 | * Scaling of results. 020417--sigurdur@linpro.no | |
32 | * Significant re-work of the module: | |
33 | * * Convert to threaded model to more efficiently be able to transmit | |
34 | * and receive on multiple interfaces at once. | |
35 | * * Converted many counters to __u64 to allow longer runs. | |
36 | * * Allow configuration of ranges, like min/max IP address, MACs, | |
37 | * and UDP-ports, for both source and destination, and can | |
38 | * set to use a random distribution or sequentially walk the range. | |
39 | * * Can now change most values after starting. | |
40 | * * Place 12-byte packet in UDP payload with magic number, | |
41 | * sequence number, and timestamp. | |
42 | * * Add receiver code that detects dropped pkts, re-ordered pkts, and | |
43 | * latencies (with micro-second) precision. | |
44 | * * Add IOCTL interface to easily get counters & configuration. | |
45 | * --Ben Greear <greearb@candelatech.com> | |
46 | * | |
4ec93edb YH |
47 | * Renamed multiskb to clone_skb and cleaned up sending core for two distinct |
48 | * skb modes. A clone_skb=0 mode for Ben "ranges" work and a clone_skb != 0 | |
1da177e4 | 49 | * as a "fastpath" with a configurable number of clones after alloc's. |
4ec93edb YH |
50 | * clone_skb=0 means all packets are allocated this also means ranges time |
51 | * stamps etc can be used. clone_skb=100 means 1 malloc is followed by 100 | |
1da177e4 LT |
52 | * clones. |
53 | * | |
4ec93edb | 54 | * Also moved to /proc/net/pktgen/ |
1da177e4 LT |
55 | * --ro |
56 | * | |
57 | * Sept 10: Fixed threading/locking. Lots of bone-headed and more clever | |
58 | * mistakes. Also merged in DaveM's patch in the -pre6 patch. | |
59 | * --Ben Greear <greearb@candelatech.com> | |
60 | * | |
61 | * Integrated to 2.5.x 021029 --Lucio Maciel (luciomaciel@zipmail.com.br) | |
62 | * | |
4ec93edb | 63 | * |
1da177e4 LT |
64 | * 021124 Finished major redesign and rewrite for new functionality. |
65 | * See Documentation/networking/pktgen.txt for how to use this. | |
66 | * | |
67 | * The new operation: | |
4ec93edb YH |
68 | * For each CPU one thread/process is created at start. This process checks |
69 | * for running devices in the if_list and sends packets until count is 0 it | |
70 | * also the thread checks the thread->control which is used for inter-process | |
71 | * communication. controlling process "posts" operations to the threads this | |
1da177e4 LT |
72 | * way. The if_lock should be possible to remove when add/rem_device is merged |
73 | * into this too. | |
74 | * | |
4ec93edb YH |
75 | * By design there should only be *one* "controlling" process. In practice |
76 | * multiple write accesses gives unpredictable result. Understood by "write" | |
1da177e4 | 77 | * to /proc gives result code thats should be read be the "writer". |
b4099fab | 78 | * For practical use this should be no problem. |
1da177e4 | 79 | * |
4ec93edb YH |
80 | * Note when adding devices to a specific CPU there good idea to also assign |
81 | * /proc/irq/XX/smp_affinity so TX-interrupts gets bound to the same CPU. | |
1da177e4 LT |
82 | * --ro |
83 | * | |
4ec93edb | 84 | * Fix refcount off by one if first packet fails, potential null deref, |
1da177e4 LT |
85 | * memleak 030710- KJP |
86 | * | |
87 | * First "ranges" functionality for ipv6 030726 --ro | |
88 | * | |
89 | * Included flow support. 030802 ANK. | |
90 | * | |
91 | * Fixed unaligned access on IA-64 Grant Grundler <grundler@parisc-linux.org> | |
4ec93edb | 92 | * |
1da177e4 LT |
93 | * Remove if fix from added Harald Welte <laforge@netfilter.org> 040419 |
94 | * ia64 compilation fix from Aron Griffis <aron@hp.com> 040604 | |
95 | * | |
4ec93edb | 96 | * New xmit() return, do_div and misc clean up by Stephen Hemminger |
1da177e4 LT |
97 | * <shemminger@osdl.org> 040923 |
98 | * | |
4ec93edb | 99 | * Randy Dunlap fixed u64 printk compiler waring |
1da177e4 LT |
100 | * |
101 | * Remove FCS from BW calculation. Lennert Buytenhek <buytenh@wantstofly.org> | |
102 | * New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213 | |
103 | * | |
4ec93edb | 104 | * Corrections from Nikolai Malykh (nmalykh@bilim.com) |
1da177e4 LT |
105 | * Removed unused flags F_SET_SRCMAC & F_SET_SRCIP 041230 |
106 | * | |
4ec93edb | 107 | * interruptible_sleep_on_timeout() replaced Nishanth Aravamudan <nacc@us.ibm.com> |
1da177e4 | 108 | * 050103 |
ca6549af SW |
109 | * |
110 | * MPLS support by Steven Whitehouse <steve@chygwyn.com> | |
111 | * | |
34954ddc FF |
112 | * 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <francesco.fondelli@gmail.com> |
113 | * | |
ce5d0b47 AR |
114 | * Fixed src_mac command to set source mac of packet to value specified in |
115 | * command by Adit Ranadive <adit.262@gmail.com> | |
116 | * | |
1da177e4 LT |
117 | */ |
118 | #include <linux/sys.h> | |
119 | #include <linux/types.h> | |
120 | #include <linux/module.h> | |
121 | #include <linux/moduleparam.h> | |
122 | #include <linux/kernel.h> | |
222fa076 | 123 | #include <linux/mutex.h> |
1da177e4 LT |
124 | #include <linux/sched.h> |
125 | #include <linux/slab.h> | |
126 | #include <linux/vmalloc.h> | |
1da177e4 LT |
127 | #include <linux/unistd.h> |
128 | #include <linux/string.h> | |
129 | #include <linux/ptrace.h> | |
130 | #include <linux/errno.h> | |
131 | #include <linux/ioport.h> | |
132 | #include <linux/interrupt.h> | |
4fc268d2 | 133 | #include <linux/capability.h> |
2bc481cf | 134 | #include <linux/hrtimer.h> |
09fe3ef4 | 135 | #include <linux/freezer.h> |
1da177e4 LT |
136 | #include <linux/delay.h> |
137 | #include <linux/timer.h> | |
cdcdbe0b | 138 | #include <linux/list.h> |
1da177e4 LT |
139 | #include <linux/init.h> |
140 | #include <linux/skbuff.h> | |
141 | #include <linux/netdevice.h> | |
142 | #include <linux/inet.h> | |
143 | #include <linux/inetdevice.h> | |
144 | #include <linux/rtnetlink.h> | |
145 | #include <linux/if_arp.h> | |
34954ddc | 146 | #include <linux/if_vlan.h> |
1da177e4 LT |
147 | #include <linux/in.h> |
148 | #include <linux/ip.h> | |
149 | #include <linux/ipv6.h> | |
150 | #include <linux/udp.h> | |
151 | #include <linux/proc_fs.h> | |
d50a6b56 | 152 | #include <linux/seq_file.h> |
1da177e4 | 153 | #include <linux/wait.h> |
f404e9a6 | 154 | #include <linux/etherdevice.h> |
ee74baa7 | 155 | #include <linux/kthread.h> |
457c4cbc | 156 | #include <net/net_namespace.h> |
1da177e4 LT |
157 | #include <net/checksum.h> |
158 | #include <net/ipv6.h> | |
159 | #include <net/addrconf.h> | |
a553e4a6 JHS |
160 | #ifdef CONFIG_XFRM |
161 | #include <net/xfrm.h> | |
162 | #endif | |
1da177e4 LT |
163 | #include <asm/byteorder.h> |
164 | #include <linux/rcupdate.h> | |
1977f032 | 165 | #include <linux/bitops.h> |
63adc6fb SH |
166 | #include <linux/io.h> |
167 | #include <linux/timex.h> | |
168 | #include <linux/uaccess.h> | |
1da177e4 | 169 | #include <asm/dma.h> |
222f1806 | 170 | #include <asm/div64.h> /* do_div */ |
1da177e4 | 171 | |
c3d2f52d | 172 | #define VERSION "2.72" |
1da177e4 | 173 | #define IP_NAME_SZ 32 |
ca6549af | 174 | #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */ |
d5f1ce9a | 175 | #define MPLS_STACK_BOTTOM htonl(0x00000100) |
1da177e4 LT |
176 | |
177 | /* Device flag bits */ | |
222f1806 LC |
178 | #define F_IPSRC_RND (1<<0) /* IP-Src Random */ |
179 | #define F_IPDST_RND (1<<1) /* IP-Dst Random */ | |
180 | #define F_UDPSRC_RND (1<<2) /* UDP-Src Random */ | |
181 | #define F_UDPDST_RND (1<<3) /* UDP-Dst Random */ | |
182 | #define F_MACSRC_RND (1<<4) /* MAC-Src Random */ | |
183 | #define F_MACDST_RND (1<<5) /* MAC-Dst Random */ | |
184 | #define F_TXSIZE_RND (1<<6) /* Transmit size is random */ | |
185 | #define F_IPV6 (1<<7) /* Interface in IPV6 Mode */ | |
ca6549af | 186 | #define F_MPLS_RND (1<<8) /* Random MPLS labels */ |
34954ddc FF |
187 | #define F_VID_RND (1<<9) /* Random VLAN ID */ |
188 | #define F_SVID_RND (1<<10) /* Random SVLAN ID */ | |
007a531b | 189 | #define F_FLOW_SEQ (1<<11) /* Sequential flows */ |
a553e4a6 | 190 | #define F_IPSEC_ON (1<<12) /* ipsec on for flows */ |
45b270f8 | 191 | #define F_QUEUE_MAP_RND (1<<13) /* queue map Random */ |
e6fce5b9 | 192 | #define F_QUEUE_MAP_CPU (1<<14) /* queue map mirrors smp_processor_id() */ |
1da177e4 LT |
193 | |
194 | /* Thread control flag bits */ | |
6b80d6a6 SH |
195 | #define T_STOP (1<<0) /* Stop run */ |
196 | #define T_RUN (1<<1) /* Start run */ | |
197 | #define T_REMDEVALL (1<<2) /* Remove all devs */ | |
198 | #define T_REMDEV (1<<3) /* Remove one dev */ | |
1da177e4 | 199 | |
1da177e4 LT |
200 | /* If lock -- can be removed after some work */ |
201 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
202 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
203 | ||
204 | /* Used to help with determining the pkts on receive */ | |
205 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
206 | #define PG_PROC_DIR "pktgen" |
207 | #define PGCTRL "pgctrl" | |
63adc6fb | 208 | static struct proc_dir_entry *pg_proc_dir; |
1da177e4 LT |
209 | |
210 | #define MAX_CFLOWS 65536 | |
211 | ||
34954ddc FF |
212 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
213 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
214 | ||
222f1806 | 215 | struct flow_state { |
252e3346 | 216 | __be32 cur_daddr; |
222f1806 | 217 | int count; |
a553e4a6 JHS |
218 | #ifdef CONFIG_XFRM |
219 | struct xfrm_state *x; | |
220 | #endif | |
007a531b | 221 | __u32 flags; |
1da177e4 LT |
222 | }; |
223 | ||
007a531b JHS |
224 | /* flow flag bits */ |
225 | #define F_INIT (1<<0) /* flow has been initialized */ | |
226 | ||
1da177e4 | 227 | struct pktgen_dev { |
1da177e4 LT |
228 | /* |
229 | * Try to keep frequent/infrequent used vars. separated. | |
230 | */ | |
39df232f SH |
231 | struct proc_dir_entry *entry; /* proc file */ |
232 | struct pktgen_thread *pg_thread;/* the owner */ | |
63adc6fb | 233 | struct list_head list; /* chaining in the thread's run-queue */ |
1da177e4 | 234 | |
63adc6fb | 235 | int running; /* if false, the test will stop */ |
1da177e4 | 236 | |
222f1806 LC |
237 | /* If min != max, then we will either do a linear iteration, or |
238 | * we will do a random selection from within the range. | |
239 | */ | |
240 | __u32 flags; | |
95ed63f7 AK |
241 | int removal_mark; /* non-zero => the device is marked for |
242 | * removal by worker thread */ | |
1da177e4 | 243 | |
222f1806 LC |
244 | int min_pkt_size; /* = ETH_ZLEN; */ |
245 | int max_pkt_size; /* = ETH_ZLEN; */ | |
16dab72f | 246 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 | 247 | int nfrags; |
fd29cf72 SH |
248 | u64 delay; /* nano-seconds */ |
249 | ||
222f1806 LC |
250 | __u64 count; /* Default No packets to send */ |
251 | __u64 sofar; /* How many pkts we've sent so far */ | |
252 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
63adc6fb SH |
253 | __u64 errors; /* Errors when trying to transmit, |
254 | pkts will be re-sent */ | |
222f1806 LC |
255 | |
256 | /* runtime counters relating to clone_skb */ | |
222f1806 LC |
257 | |
258 | __u64 allocated_skbs; | |
259 | __u32 clone_count; | |
260 | int last_ok; /* Was last skb sent? | |
63adc6fb SH |
261 | * Or a failed transmit of some sort? |
262 | * This will keep sequence numbers in order | |
222f1806 | 263 | */ |
fd29cf72 SH |
264 | ktime_t next_tx; |
265 | ktime_t started_at; | |
266 | ktime_t stopped_at; | |
267 | u64 idle_acc; /* nano-seconds */ | |
268 | ||
222f1806 LC |
269 | __u32 seq_num; |
270 | ||
63adc6fb SH |
271 | int clone_skb; /* |
272 | * Use multiple SKBs during packet gen. | |
273 | * If this number is greater than 1, then | |
274 | * that many copies of the same packet will be | |
275 | * sent before a new packet is allocated. | |
276 | * If you want to send 1024 identical packets | |
277 | * before creating a new packet, | |
278 | * set clone_skb to 1024. | |
222f1806 LC |
279 | */ |
280 | ||
281 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
282 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
283 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
284 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
285 | ||
286 | struct in6_addr in6_saddr; | |
287 | struct in6_addr in6_daddr; | |
288 | struct in6_addr cur_in6_daddr; | |
289 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 290 | /* For ranges */ |
222f1806 LC |
291 | struct in6_addr min_in6_daddr; |
292 | struct in6_addr max_in6_daddr; | |
293 | struct in6_addr min_in6_saddr; | |
294 | struct in6_addr max_in6_saddr; | |
295 | ||
296 | /* If we're doing ranges, random or incremental, then this | |
297 | * defines the min/max for those ranges. | |
298 | */ | |
252e3346 AV |
299 | __be32 saddr_min; /* inclusive, source IP address */ |
300 | __be32 saddr_max; /* exclusive, source IP address */ | |
301 | __be32 daddr_min; /* inclusive, dest IP address */ | |
302 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
303 | |
304 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
305 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
306 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
307 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
308 | ||
1ca7768c | 309 | /* DSCP + ECN */ |
63adc6fb SH |
310 | __u8 tos; /* six MSB of (former) IPv4 TOS |
311 | are for dscp codepoint */ | |
312 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 | |
313 | (see RFC 3260, sec. 4) */ | |
1ca7768c | 314 | |
ca6549af SW |
315 | /* MPLS */ |
316 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
317 | __be32 labels[MAX_MPLS_LABELS]; | |
318 | ||
34954ddc FF |
319 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
320 | __u8 vlan_p; | |
321 | __u8 vlan_cfi; | |
322 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
323 | ||
324 | __u8 svlan_p; | |
325 | __u8 svlan_cfi; | |
326 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
327 | ||
222f1806 LC |
328 | __u32 src_mac_count; /* How many MACs to iterate through */ |
329 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
330 | ||
331 | unsigned char dst_mac[ETH_ALEN]; | |
332 | unsigned char src_mac[ETH_ALEN]; | |
333 | ||
334 | __u32 cur_dst_mac_offset; | |
335 | __u32 cur_src_mac_offset; | |
252e3346 AV |
336 | __be32 cur_saddr; |
337 | __be32 cur_daddr; | |
66ed1e5e | 338 | __u16 ip_id; |
222f1806 LC |
339 | __u16 cur_udp_dst; |
340 | __u16 cur_udp_src; | |
45b270f8 | 341 | __u16 cur_queue_map; |
222f1806 | 342 | __u32 cur_pkt_size; |
baac8564 | 343 | __u32 last_pkt_size; |
222f1806 LC |
344 | |
345 | __u8 hh[14]; | |
346 | /* = { | |
347 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
348 | ||
349 | We fill in SRC address later | |
350 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
351 | 0x08, 0x00 | |
352 | }; | |
353 | */ | |
354 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
355 | ||
63adc6fb | 356 | struct sk_buff *skb; /* skb we are to transmit next, used for when we |
222f1806 LC |
357 | * are transmitting the same one multiple times |
358 | */ | |
63adc6fb SH |
359 | struct net_device *odev; /* The out-going device. |
360 | * Note that the device should have it's | |
361 | * pg_info pointer pointing back to this | |
362 | * device. | |
363 | * Set when the user specifies the out-going | |
364 | * device name (not when the inject is | |
365 | * started as it used to do.) | |
366 | */ | |
593f63b0 | 367 | char odevname[32]; |
1da177e4 | 368 | struct flow_state *flows; |
222f1806 LC |
369 | unsigned cflows; /* Concurrent flows (config) */ |
370 | unsigned lflow; /* Flow length (config) */ | |
371 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 372 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
373 | |
374 | u16 queue_map_min; | |
375 | u16 queue_map_max; | |
376 | ||
a553e4a6 JHS |
377 | #ifdef CONFIG_XFRM |
378 | __u8 ipsmode; /* IPSEC mode (config) */ | |
379 | __u8 ipsproto; /* IPSEC type (config) */ | |
380 | #endif | |
39df232f | 381 | char result[512]; |
1da177e4 LT |
382 | }; |
383 | ||
384 | struct pktgen_hdr { | |
252e3346 AV |
385 | __be32 pgh_magic; |
386 | __be32 seq_num; | |
387 | __be32 tv_sec; | |
388 | __be32 tv_usec; | |
1da177e4 LT |
389 | }; |
390 | ||
391 | struct pktgen_thread { | |
63adc6fb | 392 | spinlock_t if_lock; /* for list of devices */ |
c26a8016 | 393 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 394 | struct list_head th_list; |
ee74baa7 | 395 | struct task_struct *tsk; |
222f1806 | 396 | char result[512]; |
222f1806 | 397 | |
63adc6fb SH |
398 | /* Field for thread to receive "posted" events terminate, |
399 | stop ifs etc. */ | |
222f1806 LC |
400 | |
401 | u32 control; | |
1da177e4 LT |
402 | int cpu; |
403 | ||
222f1806 | 404 | wait_queue_head_t queue; |
d3ede327 | 405 | struct completion start_done; |
1da177e4 LT |
406 | }; |
407 | ||
408 | #define REMOVE 1 | |
409 | #define FIND 0 | |
410 | ||
fd29cf72 | 411 | static inline ktime_t ktime_now(void) |
1da177e4 | 412 | { |
fd29cf72 SH |
413 | struct timespec ts; |
414 | ktime_get_ts(&ts); | |
415 | ||
416 | return timespec_to_ktime(ts); | |
1da177e4 LT |
417 | } |
418 | ||
fd29cf72 SH |
419 | /* This works even if 32 bit because of careful byte order choice */ |
420 | static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2) | |
1da177e4 | 421 | { |
fd29cf72 | 422 | return cmp1.tv64 < cmp2.tv64; |
1da177e4 LT |
423 | } |
424 | ||
c3d2f52d SH |
425 | static const char version[] = |
426 | "pktgen " VERSION ": Packet Generator for packet performance testing.\n"; | |
1da177e4 | 427 | |
222f1806 LC |
428 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
429 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
430 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
3e984840 | 431 | const char *ifname, bool exact); |
1da177e4 LT |
432 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
433 | static void pktgen_run_all_threads(void); | |
eb37b41c | 434 | static void pktgen_reset_all_threads(void); |
1da177e4 | 435 | static void pktgen_stop_all_threads_ifs(void); |
3bda06a3 | 436 | |
222f1806 | 437 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 438 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 439 | |
222f1806 LC |
440 | static unsigned int scan_ip6(const char *s, char ip[16]); |
441 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
442 | |
443 | /* Module parameters, defaults. */ | |
65c5b786 SH |
444 | static int pg_count_d __read_mostly = 1000; |
445 | static int pg_delay_d __read_mostly; | |
446 | static int pg_clone_skb_d __read_mostly; | |
447 | static int debug __read_mostly; | |
1da177e4 | 448 | |
222fa076 | 449 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 450 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 451 | |
1da177e4 LT |
452 | static struct notifier_block pktgen_notifier_block = { |
453 | .notifier_call = pktgen_device_event, | |
454 | }; | |
455 | ||
1da177e4 | 456 | /* |
4ec93edb | 457 | * /proc handling functions |
1da177e4 LT |
458 | * |
459 | */ | |
460 | ||
d50a6b56 | 461 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 462 | { |
c3d2f52d | 463 | seq_puts(seq, version); |
d50a6b56 | 464 | return 0; |
1da177e4 LT |
465 | } |
466 | ||
63adc6fb SH |
467 | static ssize_t pgctrl_write(struct file *file, const char __user *buf, |
468 | size_t count, loff_t *ppos) | |
1da177e4 | 469 | { |
1da177e4 | 470 | int err = 0; |
d50a6b56 | 471 | char data[128]; |
1da177e4 | 472 | |
222f1806 LC |
473 | if (!capable(CAP_NET_ADMIN)) { |
474 | err = -EPERM; | |
1da177e4 | 475 | goto out; |
222f1806 | 476 | } |
1da177e4 | 477 | |
d50a6b56 SH |
478 | if (count > sizeof(data)) |
479 | count = sizeof(data); | |
1da177e4 | 480 | |
1da177e4 | 481 | if (copy_from_user(data, buf, count)) { |
b4099fab | 482 | err = -EFAULT; |
d50a6b56 | 483 | goto out; |
222f1806 LC |
484 | } |
485 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 486 | |
222f1806 | 487 | if (!strcmp(data, "stop")) |
1da177e4 LT |
488 | pktgen_stop_all_threads_ifs(); |
489 | ||
222f1806 | 490 | else if (!strcmp(data, "start")) |
1da177e4 LT |
491 | pktgen_run_all_threads(); |
492 | ||
eb37b41c JB |
493 | else if (!strcmp(data, "reset")) |
494 | pktgen_reset_all_threads(); | |
495 | ||
222f1806 | 496 | else |
25a8b254 | 497 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
498 | |
499 | err = count; | |
500 | ||
222f1806 LC |
501 | out: |
502 | return err; | |
1da177e4 LT |
503 | } |
504 | ||
d50a6b56 SH |
505 | static int pgctrl_open(struct inode *inode, struct file *file) |
506 | { | |
507 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
508 | } | |
509 | ||
9a32144e | 510 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
511 | .owner = THIS_MODULE, |
512 | .open = pgctrl_open, | |
513 | .read = seq_read, | |
514 | .llseek = seq_lseek, | |
515 | .write = pgctrl_write, | |
516 | .release = single_release, | |
d50a6b56 SH |
517 | }; |
518 | ||
519 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 520 | { |
648fda74 | 521 | const struct pktgen_dev *pkt_dev = seq->private; |
fd29cf72 SH |
522 | ktime_t stopped; |
523 | u64 idle; | |
222f1806 LC |
524 | |
525 | seq_printf(seq, | |
526 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
527 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
528 | pkt_dev->max_pkt_size); | |
529 | ||
530 | seq_printf(seq, | |
fd29cf72 SH |
531 | " frags: %d delay: %llu clone_skb: %d ifname: %s\n", |
532 | pkt_dev->nfrags, (unsigned long long) pkt_dev->delay, | |
593f63b0 | 533 | pkt_dev->clone_skb, pkt_dev->odevname); |
222f1806 LC |
534 | |
535 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
536 | pkt_dev->lflow); | |
537 | ||
45b270f8 RO |
538 | seq_printf(seq, |
539 | " queue_map_min: %u queue_map_max: %u\n", | |
540 | pkt_dev->queue_map_min, | |
541 | pkt_dev->queue_map_max); | |
542 | ||
222f1806 LC |
543 | if (pkt_dev->flags & F_IPV6) { |
544 | char b1[128], b2[128], b3[128]; | |
545 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
546 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
547 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
548 | seq_printf(seq, | |
549 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
550 | b2, b3); | |
551 | ||
552 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
553 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
554 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
555 | seq_printf(seq, | |
556 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
557 | b2, b3); | |
558 | ||
63adc6fb SH |
559 | } else { |
560 | seq_printf(seq, | |
561 | " dst_min: %s dst_max: %s\n", | |
562 | pkt_dev->dst_min, pkt_dev->dst_max); | |
222f1806 | 563 | seq_printf(seq, |
63adc6fb SH |
564 | " src_min: %s src_max: %s\n", |
565 | pkt_dev->src_min, pkt_dev->src_max); | |
566 | } | |
1da177e4 | 567 | |
222f1806 | 568 | seq_puts(seq, " src_mac: "); |
1da177e4 | 569 | |
e174961c JB |
570 | seq_printf(seq, "%pM ", |
571 | is_zero_ether_addr(pkt_dev->src_mac) ? | |
572 | pkt_dev->odev->dev_addr : pkt_dev->src_mac); | |
222f1806 LC |
573 | |
574 | seq_printf(seq, "dst_mac: "); | |
e174961c | 575 | seq_printf(seq, "%pM\n", pkt_dev->dst_mac); |
222f1806 LC |
576 | |
577 | seq_printf(seq, | |
63adc6fb SH |
578 | " udp_src_min: %d udp_src_max: %d" |
579 | " udp_dst_min: %d udp_dst_max: %d\n", | |
222f1806 LC |
580 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, |
581 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
582 | ||
583 | seq_printf(seq, | |
ca6549af | 584 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 585 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 586 | |
ca6549af SW |
587 | if (pkt_dev->nr_labels) { |
588 | unsigned i; | |
589 | seq_printf(seq, " mpls: "); | |
e71a4783 | 590 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
591 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
592 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
593 | } | |
594 | ||
63adc6fb | 595 | if (pkt_dev->vlan_id != 0xffff) |
34954ddc | 596 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
597 | pkt_dev->vlan_id, pkt_dev->vlan_p, |
598 | pkt_dev->vlan_cfi); | |
34954ddc | 599 | |
63adc6fb | 600 | if (pkt_dev->svlan_id != 0xffff) |
34954ddc | 601 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
602 | pkt_dev->svlan_id, pkt_dev->svlan_p, |
603 | pkt_dev->svlan_cfi); | |
34954ddc | 604 | |
63adc6fb | 605 | if (pkt_dev->tos) |
1ca7768c | 606 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); |
1ca7768c | 607 | |
63adc6fb | 608 | if (pkt_dev->traffic_class) |
1ca7768c | 609 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); |
1ca7768c | 610 | |
ca6549af SW |
611 | seq_printf(seq, " Flags: "); |
612 | ||
222f1806 LC |
613 | if (pkt_dev->flags & F_IPV6) |
614 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 615 | |
222f1806 LC |
616 | if (pkt_dev->flags & F_IPSRC_RND) |
617 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 618 | |
222f1806 LC |
619 | if (pkt_dev->flags & F_IPDST_RND) |
620 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 621 | |
222f1806 LC |
622 | if (pkt_dev->flags & F_TXSIZE_RND) |
623 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 624 | |
222f1806 LC |
625 | if (pkt_dev->flags & F_UDPSRC_RND) |
626 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 627 | |
222f1806 LC |
628 | if (pkt_dev->flags & F_UDPDST_RND) |
629 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 630 | |
ca6549af SW |
631 | if (pkt_dev->flags & F_MPLS_RND) |
632 | seq_printf(seq, "MPLS_RND "); | |
633 | ||
45b270f8 RO |
634 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
635 | seq_printf(seq, "QUEUE_MAP_RND "); | |
636 | ||
e6fce5b9 RO |
637 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
638 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
639 | ||
007a531b JHS |
640 | if (pkt_dev->cflows) { |
641 | if (pkt_dev->flags & F_FLOW_SEQ) | |
642 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
643 | else | |
644 | seq_printf(seq, "FLOW_RND "); | |
645 | } | |
646 | ||
a553e4a6 JHS |
647 | #ifdef CONFIG_XFRM |
648 | if (pkt_dev->flags & F_IPSEC_ON) | |
649 | seq_printf(seq, "IPSEC "); | |
650 | #endif | |
651 | ||
222f1806 LC |
652 | if (pkt_dev->flags & F_MACSRC_RND) |
653 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 654 | |
222f1806 LC |
655 | if (pkt_dev->flags & F_MACDST_RND) |
656 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 657 | |
34954ddc FF |
658 | if (pkt_dev->flags & F_VID_RND) |
659 | seq_printf(seq, "VID_RND "); | |
660 | ||
661 | if (pkt_dev->flags & F_SVID_RND) | |
662 | seq_printf(seq, "SVID_RND "); | |
663 | ||
222f1806 LC |
664 | seq_puts(seq, "\n"); |
665 | ||
fd29cf72 SH |
666 | /* not really stopped, more like last-running-at */ |
667 | stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at; | |
668 | idle = pkt_dev->idle_acc; | |
669 | do_div(idle, NSEC_PER_USEC); | |
1da177e4 | 670 | |
222f1806 | 671 | seq_printf(seq, |
fd29cf72 | 672 | "Current:\n pkts-sofar: %llu errors: %llu\n", |
222f1806 | 673 | (unsigned long long)pkt_dev->sofar, |
fd29cf72 SH |
674 | (unsigned long long)pkt_dev->errors); |
675 | ||
676 | seq_printf(seq, | |
677 | " started: %lluus stopped: %lluus idle: %lluus\n", | |
678 | (unsigned long long) ktime_to_us(pkt_dev->started_at), | |
679 | (unsigned long long) ktime_to_us(stopped), | |
680 | (unsigned long long) idle); | |
1da177e4 | 681 | |
222f1806 LC |
682 | seq_printf(seq, |
683 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
684 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
685 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 686 | |
222f1806 | 687 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 688 | char b1[128], b2[128]; |
222f1806 LC |
689 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
690 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
691 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
692 | } else | |
693 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 694 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 695 | |
222f1806 | 696 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 697 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 698 | |
45b270f8 RO |
699 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
700 | ||
222f1806 | 701 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
702 | |
703 | if (pkt_dev->result[0]) | |
222f1806 | 704 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 705 | else |
222f1806 | 706 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 707 | |
d50a6b56 | 708 | return 0; |
1da177e4 LT |
709 | } |
710 | ||
ca6549af | 711 | |
63adc6fb SH |
712 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, |
713 | __u32 *num) | |
ca6549af SW |
714 | { |
715 | int i = 0; | |
716 | *num = 0; | |
717 | ||
e71a4783 | 718 | for (; i < maxlen; i++) { |
ca6549af SW |
719 | char c; |
720 | *num <<= 4; | |
721 | if (get_user(c, &user_buffer[i])) | |
722 | return -EFAULT; | |
723 | if ((c >= '0') && (c <= '9')) | |
724 | *num |= c - '0'; | |
725 | else if ((c >= 'a') && (c <= 'f')) | |
726 | *num |= c - 'a' + 10; | |
727 | else if ((c >= 'A') && (c <= 'F')) | |
728 | *num |= c - 'A' + 10; | |
729 | else | |
730 | break; | |
731 | } | |
732 | return i; | |
733 | } | |
734 | ||
222f1806 LC |
735 | static int count_trail_chars(const char __user * user_buffer, |
736 | unsigned int maxlen) | |
1da177e4 LT |
737 | { |
738 | int i; | |
739 | ||
740 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
741 | char c; |
742 | if (get_user(c, &user_buffer[i])) | |
743 | return -EFAULT; | |
744 | switch (c) { | |
1da177e4 LT |
745 | case '\"': |
746 | case '\n': | |
747 | case '\r': | |
748 | case '\t': | |
749 | case ' ': | |
750 | case '=': | |
751 | break; | |
752 | default: | |
753 | goto done; | |
3ff50b79 | 754 | } |
1da177e4 LT |
755 | } |
756 | done: | |
757 | return i; | |
758 | } | |
759 | ||
222f1806 LC |
760 | static unsigned long num_arg(const char __user * user_buffer, |
761 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
762 | { |
763 | int i = 0; | |
764 | *num = 0; | |
222f1806 LC |
765 | |
766 | for (; i < maxlen; i++) { | |
767 | char c; | |
768 | if (get_user(c, &user_buffer[i])) | |
769 | return -EFAULT; | |
770 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 771 | *num *= 10; |
222f1806 | 772 | *num += c - '0'; |
1da177e4 LT |
773 | } else |
774 | break; | |
775 | } | |
776 | return i; | |
777 | } | |
778 | ||
222f1806 | 779 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
780 | { |
781 | int i = 0; | |
782 | ||
222f1806 LC |
783 | for (; i < maxlen; i++) { |
784 | char c; | |
785 | if (get_user(c, &user_buffer[i])) | |
786 | return -EFAULT; | |
787 | switch (c) { | |
1da177e4 LT |
788 | case '\"': |
789 | case '\n': | |
790 | case '\r': | |
791 | case '\t': | |
792 | case ' ': | |
793 | goto done_str; | |
794 | break; | |
795 | default: | |
796 | break; | |
3ff50b79 | 797 | } |
1da177e4 LT |
798 | } |
799 | done_str: | |
1da177e4 LT |
800 | return i; |
801 | } | |
802 | ||
ca6549af SW |
803 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
804 | { | |
805 | unsigned n = 0; | |
806 | char c; | |
807 | ssize_t i = 0; | |
808 | int len; | |
809 | ||
810 | pkt_dev->nr_labels = 0; | |
811 | do { | |
812 | __u32 tmp; | |
1ca7768c | 813 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
814 | if (len <= 0) |
815 | return len; | |
816 | pkt_dev->labels[n] = htonl(tmp); | |
817 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
818 | pkt_dev->flags |= F_MPLS_RND; | |
819 | i += len; | |
820 | if (get_user(c, &buffer[i])) | |
821 | return -EFAULT; | |
822 | i++; | |
823 | n++; | |
824 | if (n >= MAX_MPLS_LABELS) | |
825 | return -E2BIG; | |
e71a4783 | 826 | } while (c == ','); |
ca6549af SW |
827 | |
828 | pkt_dev->nr_labels = n; | |
829 | return i; | |
830 | } | |
831 | ||
222f1806 LC |
832 | static ssize_t pktgen_if_write(struct file *file, |
833 | const char __user * user_buffer, size_t count, | |
834 | loff_t * offset) | |
1da177e4 | 835 | { |
222f1806 LC |
836 | struct seq_file *seq = (struct seq_file *)file->private_data; |
837 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
838 | int i = 0, max, len; |
839 | char name[16], valstr[32]; | |
840 | unsigned long value = 0; | |
222f1806 LC |
841 | char *pg_result = NULL; |
842 | int tmp = 0; | |
1da177e4 | 843 | char buf[128]; |
222f1806 LC |
844 | |
845 | pg_result = &(pkt_dev->result[0]); | |
846 | ||
1da177e4 | 847 | if (count < 1) { |
25a8b254 | 848 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
849 | return -EINVAL; |
850 | } | |
222f1806 | 851 | |
1da177e4 LT |
852 | max = count - i; |
853 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 854 | if (tmp < 0) { |
25a8b254 | 855 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 856 | return tmp; |
1da177e4 | 857 | } |
222f1806 LC |
858 | i += tmp; |
859 | ||
1da177e4 LT |
860 | /* Read variable name */ |
861 | ||
862 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
63adc6fb | 863 | if (len < 0) |
222f1806 | 864 | return len; |
63adc6fb | 865 | |
1da177e4 | 866 | memset(name, 0, sizeof(name)); |
222f1806 | 867 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
868 | return -EFAULT; |
869 | i += len; | |
222f1806 LC |
870 | |
871 | max = count - i; | |
1da177e4 | 872 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
873 | if (len < 0) |
874 | return len; | |
875 | ||
1da177e4 LT |
876 | i += len; |
877 | ||
878 | if (debug) { | |
222f1806 LC |
879 | char tb[count + 1]; |
880 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 881 | return -EFAULT; |
222f1806 | 882 | tb[count] = 0; |
25a8b254 | 883 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
884 | (unsigned long)count, tb); |
885 | } | |
1da177e4 LT |
886 | |
887 | if (!strcmp(name, "min_pkt_size")) { | |
888 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 889 | if (len < 0) |
222f1806 | 890 | return len; |
63adc6fb | 891 | |
1da177e4 | 892 | i += len; |
222f1806 LC |
893 | if (value < 14 + 20 + 8) |
894 | value = 14 + 20 + 8; | |
895 | if (value != pkt_dev->min_pkt_size) { | |
896 | pkt_dev->min_pkt_size = value; | |
897 | pkt_dev->cur_pkt_size = value; | |
898 | } | |
899 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
900 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
901 | return count; |
902 | } | |
903 | ||
222f1806 | 904 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 905 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 906 | if (len < 0) |
222f1806 | 907 | return len; |
63adc6fb | 908 | |
1da177e4 | 909 | i += len; |
222f1806 LC |
910 | if (value < 14 + 20 + 8) |
911 | value = 14 + 20 + 8; | |
912 | if (value != pkt_dev->max_pkt_size) { | |
913 | pkt_dev->max_pkt_size = value; | |
914 | pkt_dev->cur_pkt_size = value; | |
915 | } | |
916 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
917 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
918 | return count; |
919 | } | |
920 | ||
222f1806 | 921 | /* Shortcut for min = max */ |
1da177e4 LT |
922 | |
923 | if (!strcmp(name, "pkt_size")) { | |
924 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 925 | if (len < 0) |
222f1806 | 926 | return len; |
63adc6fb | 927 | |
1da177e4 | 928 | i += len; |
222f1806 LC |
929 | if (value < 14 + 20 + 8) |
930 | value = 14 + 20 + 8; | |
931 | if (value != pkt_dev->min_pkt_size) { | |
932 | pkt_dev->min_pkt_size = value; | |
933 | pkt_dev->max_pkt_size = value; | |
934 | pkt_dev->cur_pkt_size = value; | |
935 | } | |
1da177e4 LT |
936 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
937 | return count; | |
938 | } | |
939 | ||
222f1806 | 940 | if (!strcmp(name, "debug")) { |
1da177e4 | 941 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 942 | if (len < 0) |
222f1806 | 943 | return len; |
63adc6fb | 944 | |
1da177e4 | 945 | i += len; |
222f1806 | 946 | debug = value; |
1da177e4 LT |
947 | sprintf(pg_result, "OK: debug=%u", debug); |
948 | return count; | |
949 | } | |
950 | ||
222f1806 | 951 | if (!strcmp(name, "frags")) { |
1da177e4 | 952 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 953 | if (len < 0) |
222f1806 | 954 | return len; |
63adc6fb | 955 | |
1da177e4 LT |
956 | i += len; |
957 | pkt_dev->nfrags = value; | |
958 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
959 | return count; | |
960 | } | |
961 | if (!strcmp(name, "delay")) { | |
962 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 963 | if (len < 0) |
222f1806 | 964 | return len; |
63adc6fb | 965 | |
1da177e4 | 966 | i += len; |
fd29cf72 SH |
967 | if (value == 0x7FFFFFFF) |
968 | pkt_dev->delay = ULLONG_MAX; | |
969 | else | |
9240d715 | 970 | pkt_dev->delay = (u64)value; |
fd29cf72 SH |
971 | |
972 | sprintf(pg_result, "OK: delay=%llu", | |
973 | (unsigned long long) pkt_dev->delay); | |
1da177e4 LT |
974 | return count; |
975 | } | |
222f1806 | 976 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 977 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 978 | if (len < 0) |
222f1806 | 979 | return len; |
63adc6fb | 980 | |
1da177e4 | 981 | i += len; |
222f1806 LC |
982 | if (value != pkt_dev->udp_src_min) { |
983 | pkt_dev->udp_src_min = value; | |
984 | pkt_dev->cur_udp_src = value; | |
985 | } | |
1da177e4 LT |
986 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
987 | return count; | |
988 | } | |
222f1806 | 989 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 990 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 991 | if (len < 0) |
222f1806 | 992 | return len; |
63adc6fb | 993 | |
1da177e4 | 994 | i += len; |
222f1806 LC |
995 | if (value != pkt_dev->udp_dst_min) { |
996 | pkt_dev->udp_dst_min = value; | |
997 | pkt_dev->cur_udp_dst = value; | |
998 | } | |
1da177e4 LT |
999 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
1000 | return count; | |
1001 | } | |
222f1806 | 1002 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 1003 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1004 | if (len < 0) |
222f1806 | 1005 | return len; |
63adc6fb | 1006 | |
1da177e4 | 1007 | i += len; |
222f1806 LC |
1008 | if (value != pkt_dev->udp_src_max) { |
1009 | pkt_dev->udp_src_max = value; | |
1010 | pkt_dev->cur_udp_src = value; | |
1011 | } | |
1da177e4 LT |
1012 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
1013 | return count; | |
1014 | } | |
222f1806 | 1015 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1016 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1017 | if (len < 0) |
222f1806 | 1018 | return len; |
63adc6fb | 1019 | |
1da177e4 | 1020 | i += len; |
222f1806 LC |
1021 | if (value != pkt_dev->udp_dst_max) { |
1022 | pkt_dev->udp_dst_max = value; | |
1023 | pkt_dev->cur_udp_dst = value; | |
1024 | } | |
1da177e4 LT |
1025 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1026 | return count; | |
1027 | } | |
1028 | if (!strcmp(name, "clone_skb")) { | |
1029 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1030 | if (len < 0) |
222f1806 | 1031 | return len; |
63adc6fb | 1032 | |
1da177e4 | 1033 | i += len; |
222f1806 LC |
1034 | pkt_dev->clone_skb = value; |
1035 | ||
1da177e4 LT |
1036 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1037 | return count; | |
1038 | } | |
1039 | if (!strcmp(name, "count")) { | |
1040 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1041 | if (len < 0) |
222f1806 | 1042 | return len; |
63adc6fb | 1043 | |
1da177e4 LT |
1044 | i += len; |
1045 | pkt_dev->count = value; | |
1046 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1047 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1048 | return count; |
1049 | } | |
1050 | if (!strcmp(name, "src_mac_count")) { | |
1051 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1052 | if (len < 0) |
222f1806 | 1053 | return len; |
63adc6fb | 1054 | |
1da177e4 LT |
1055 | i += len; |
1056 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1057 | pkt_dev->src_mac_count = value; |
1058 | pkt_dev->cur_src_mac_offset = 0; | |
1059 | } | |
1060 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1061 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1062 | return count; |
1063 | } | |
1064 | if (!strcmp(name, "dst_mac_count")) { | |
1065 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1066 | if (len < 0) |
222f1806 | 1067 | return len; |
63adc6fb | 1068 | |
1da177e4 LT |
1069 | i += len; |
1070 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1071 | pkt_dev->dst_mac_count = value; |
1072 | pkt_dev->cur_dst_mac_offset = 0; | |
1073 | } | |
1074 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1075 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1076 | return count; |
1077 | } | |
1078 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1079 | char f[32]; |
1080 | memset(f, 0, 32); | |
1da177e4 | 1081 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
63adc6fb | 1082 | if (len < 0) |
222f1806 | 1083 | return len; |
63adc6fb | 1084 | |
1da177e4 LT |
1085 | if (copy_from_user(f, &user_buffer[i], len)) |
1086 | return -EFAULT; | |
1087 | i += len; | |
222f1806 LC |
1088 | if (strcmp(f, "IPSRC_RND") == 0) |
1089 | pkt_dev->flags |= F_IPSRC_RND; | |
1090 | ||
1091 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1092 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1093 | ||
1094 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1095 | pkt_dev->flags |= F_TXSIZE_RND; | |
1096 | ||
1097 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1098 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1099 | ||
1100 | else if (strcmp(f, "IPDST_RND") == 0) | |
1101 | pkt_dev->flags |= F_IPDST_RND; | |
1102 | ||
1103 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1104 | pkt_dev->flags &= ~F_IPDST_RND; | |
1105 | ||
1106 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1107 | pkt_dev->flags |= F_UDPSRC_RND; | |
1108 | ||
1109 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1110 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1111 | ||
1112 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1113 | pkt_dev->flags |= F_UDPDST_RND; | |
1114 | ||
1115 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1116 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1117 | ||
1118 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1119 | pkt_dev->flags |= F_MACSRC_RND; | |
1120 | ||
1121 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1122 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1123 | ||
1124 | else if (strcmp(f, "MACDST_RND") == 0) | |
1125 | pkt_dev->flags |= F_MACDST_RND; | |
1126 | ||
1127 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1128 | pkt_dev->flags &= ~F_MACDST_RND; | |
1129 | ||
ca6549af SW |
1130 | else if (strcmp(f, "MPLS_RND") == 0) |
1131 | pkt_dev->flags |= F_MPLS_RND; | |
1132 | ||
1133 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1134 | pkt_dev->flags &= ~F_MPLS_RND; | |
1135 | ||
34954ddc FF |
1136 | else if (strcmp(f, "VID_RND") == 0) |
1137 | pkt_dev->flags |= F_VID_RND; | |
1138 | ||
1139 | else if (strcmp(f, "!VID_RND") == 0) | |
1140 | pkt_dev->flags &= ~F_VID_RND; | |
1141 | ||
1142 | else if (strcmp(f, "SVID_RND") == 0) | |
1143 | pkt_dev->flags |= F_SVID_RND; | |
1144 | ||
1145 | else if (strcmp(f, "!SVID_RND") == 0) | |
1146 | pkt_dev->flags &= ~F_SVID_RND; | |
1147 | ||
007a531b JHS |
1148 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1149 | pkt_dev->flags |= F_FLOW_SEQ; | |
1150 | ||
45b270f8 RO |
1151 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1152 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1153 | ||
1154 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1155 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1156 | |
1157 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1158 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1159 | ||
1160 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1161 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1162 | #ifdef CONFIG_XFRM |
1163 | else if (strcmp(f, "IPSEC") == 0) | |
1164 | pkt_dev->flags |= F_IPSEC_ON; | |
1165 | #endif | |
1166 | ||
1ca7768c FF |
1167 | else if (strcmp(f, "!IPV6") == 0) |
1168 | pkt_dev->flags &= ~F_IPV6; | |
1169 | ||
222f1806 LC |
1170 | else { |
1171 | sprintf(pg_result, | |
1172 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1173 | f, | |
1ca7768c | 1174 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1175 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1176 | return count; |
1177 | } | |
1da177e4 LT |
1178 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1179 | return count; | |
1180 | } | |
1181 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1182 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
63adc6fb | 1183 | if (len < 0) |
222f1806 | 1184 | return len; |
1da177e4 | 1185 | |
222f1806 | 1186 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1187 | return -EFAULT; |
222f1806 LC |
1188 | buf[len] = 0; |
1189 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1190 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1191 | strncpy(pkt_dev->dst_min, buf, len); | |
1192 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1193 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1194 | } | |
1195 | if (debug) | |
25a8b254 | 1196 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1197 | pkt_dev->dst_min); |
1198 | i += len; | |
1da177e4 LT |
1199 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1200 | return count; | |
1201 | } | |
1202 | if (!strcmp(name, "dst_max")) { | |
1203 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
63adc6fb | 1204 | if (len < 0) |
222f1806 | 1205 | return len; |
63adc6fb | 1206 | |
1da177e4 | 1207 | |
222f1806 | 1208 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1209 | return -EFAULT; |
1210 | ||
222f1806 LC |
1211 | buf[len] = 0; |
1212 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1213 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1214 | strncpy(pkt_dev->dst_max, buf, len); | |
1215 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1216 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1217 | } | |
1218 | if (debug) | |
25a8b254 | 1219 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1220 | pkt_dev->dst_max); |
1da177e4 LT |
1221 | i += len; |
1222 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1223 | return count; | |
1224 | } | |
1225 | if (!strcmp(name, "dst6")) { | |
1226 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1227 | if (len < 0) |
1228 | return len; | |
1da177e4 LT |
1229 | |
1230 | pkt_dev->flags |= F_IPV6; | |
1231 | ||
222f1806 | 1232 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1233 | return -EFAULT; |
222f1806 | 1234 | buf[len] = 0; |
1da177e4 LT |
1235 | |
1236 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1237 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1238 | |
1239 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1240 | ||
222f1806 | 1241 | if (debug) |
25a8b254 | 1242 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1243 | |
222f1806 | 1244 | i += len; |
1da177e4 LT |
1245 | sprintf(pg_result, "OK: dst6=%s", buf); |
1246 | return count; | |
1247 | } | |
1248 | if (!strcmp(name, "dst6_min")) { | |
1249 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1250 | if (len < 0) |
1251 | return len; | |
1da177e4 LT |
1252 | |
1253 | pkt_dev->flags |= F_IPV6; | |
1254 | ||
222f1806 | 1255 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1256 | return -EFAULT; |
222f1806 | 1257 | buf[len] = 0; |
1da177e4 LT |
1258 | |
1259 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1260 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1261 | |
222f1806 LC |
1262 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1263 | &pkt_dev->min_in6_daddr); | |
1264 | if (debug) | |
25a8b254 | 1265 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1266 | |
222f1806 | 1267 | i += len; |
1da177e4 LT |
1268 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1269 | return count; | |
1270 | } | |
1271 | if (!strcmp(name, "dst6_max")) { | |
1272 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1273 | if (len < 0) |
1274 | return len; | |
1da177e4 LT |
1275 | |
1276 | pkt_dev->flags |= F_IPV6; | |
1277 | ||
222f1806 | 1278 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1279 | return -EFAULT; |
222f1806 | 1280 | buf[len] = 0; |
1da177e4 LT |
1281 | |
1282 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1283 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1284 | |
222f1806 | 1285 | if (debug) |
25a8b254 | 1286 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1287 | |
222f1806 | 1288 | i += len; |
1da177e4 LT |
1289 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1290 | return count; | |
1291 | } | |
1292 | if (!strcmp(name, "src6")) { | |
1293 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1294 | if (len < 0) |
1295 | return len; | |
1da177e4 LT |
1296 | |
1297 | pkt_dev->flags |= F_IPV6; | |
1298 | ||
222f1806 | 1299 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1300 | return -EFAULT; |
222f1806 | 1301 | buf[len] = 0; |
1da177e4 LT |
1302 | |
1303 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1304 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1305 | |
1306 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1307 | ||
222f1806 | 1308 | if (debug) |
25a8b254 | 1309 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1310 | |
1311 | i += len; | |
1da177e4 LT |
1312 | sprintf(pg_result, "OK: src6=%s", buf); |
1313 | return count; | |
1314 | } | |
1315 | if (!strcmp(name, "src_min")) { | |
1316 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
63adc6fb | 1317 | if (len < 0) |
222f1806 | 1318 | return len; |
63adc6fb | 1319 | |
222f1806 | 1320 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1321 | return -EFAULT; |
222f1806 LC |
1322 | buf[len] = 0; |
1323 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1324 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1325 | strncpy(pkt_dev->src_min, buf, len); | |
1326 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1327 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1328 | } | |
1329 | if (debug) | |
25a8b254 | 1330 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1331 | pkt_dev->src_min); |
1da177e4 LT |
1332 | i += len; |
1333 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1334 | return count; | |
1335 | } | |
1336 | if (!strcmp(name, "src_max")) { | |
1337 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
63adc6fb | 1338 | if (len < 0) |
222f1806 | 1339 | return len; |
63adc6fb | 1340 | |
222f1806 | 1341 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1342 | return -EFAULT; |
222f1806 LC |
1343 | buf[len] = 0; |
1344 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1345 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1346 | strncpy(pkt_dev->src_max, buf, len); | |
1347 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1348 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1349 | } | |
1350 | if (debug) | |
25a8b254 | 1351 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1352 | pkt_dev->src_max); |
1da177e4 LT |
1353 | i += len; |
1354 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1355 | return count; | |
1356 | } | |
1357 | if (!strcmp(name, "dst_mac")) { | |
1358 | char *v = valstr; | |
f404e9a6 | 1359 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1360 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1361 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1362 | |
1da177e4 | 1363 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1364 | if (len < 0) |
222f1806 | 1365 | return len; |
63adc6fb | 1366 | |
1da177e4 | 1367 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1368 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1369 | return -EFAULT; |
1370 | i += len; | |
1371 | ||
222f1806 | 1372 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1373 | if (*v >= '0' && *v <= '9') { |
1374 | *m *= 16; | |
1375 | *m += *v - '0'; | |
1376 | } | |
1377 | if (*v >= 'A' && *v <= 'F') { | |
1378 | *m *= 16; | |
1379 | *m += *v - 'A' + 10; | |
1380 | } | |
1381 | if (*v >= 'a' && *v <= 'f') { | |
1382 | *m *= 16; | |
1383 | *m += *v - 'a' + 10; | |
1384 | } | |
1385 | if (*v == ':') { | |
1386 | m++; | |
1387 | *m = 0; | |
1388 | } | |
1389 | } | |
1390 | ||
1391 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1392 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1393 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1394 | |
1da177e4 LT |
1395 | sprintf(pg_result, "OK: dstmac"); |
1396 | return count; | |
1397 | } | |
1398 | if (!strcmp(name, "src_mac")) { | |
1399 | char *v = valstr; | |
ce5d0b47 | 1400 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1401 | unsigned char *m = pkt_dev->src_mac; |
1402 | ||
ce5d0b47 AR |
1403 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1404 | ||
1da177e4 | 1405 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1406 | if (len < 0) |
222f1806 | 1407 | return len; |
63adc6fb | 1408 | |
1da177e4 | 1409 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1410 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1411 | return -EFAULT; |
1412 | i += len; | |
1413 | ||
222f1806 | 1414 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1415 | if (*v >= '0' && *v <= '9') { |
1416 | *m *= 16; | |
1417 | *m += *v - '0'; | |
1418 | } | |
1419 | if (*v >= 'A' && *v <= 'F') { | |
1420 | *m *= 16; | |
1421 | *m += *v - 'A' + 10; | |
1422 | } | |
1423 | if (*v >= 'a' && *v <= 'f') { | |
1424 | *m *= 16; | |
1425 | *m += *v - 'a' + 10; | |
1426 | } | |
1427 | if (*v == ':') { | |
1428 | m++; | |
1429 | *m = 0; | |
1430 | } | |
222f1806 | 1431 | } |
1da177e4 | 1432 | |
ce5d0b47 AR |
1433 | /* Set up Src MAC */ |
1434 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1435 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1436 | ||
222f1806 | 1437 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1438 | return count; |
1439 | } | |
1440 | ||
222f1806 LC |
1441 | if (!strcmp(name, "clear_counters")) { |
1442 | pktgen_clear_counters(pkt_dev); | |
1443 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1444 | return count; | |
1445 | } | |
1da177e4 LT |
1446 | |
1447 | if (!strcmp(name, "flows")) { | |
1448 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1449 | if (len < 0) |
222f1806 | 1450 | return len; |
63adc6fb | 1451 | |
1da177e4 LT |
1452 | i += len; |
1453 | if (value > MAX_CFLOWS) | |
1454 | value = MAX_CFLOWS; | |
1455 | ||
1456 | pkt_dev->cflows = value; | |
1457 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1458 | return count; | |
1459 | } | |
1460 | ||
1461 | if (!strcmp(name, "flowlen")) { | |
1462 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1463 | if (len < 0) |
222f1806 | 1464 | return len; |
63adc6fb | 1465 | |
1da177e4 LT |
1466 | i += len; |
1467 | pkt_dev->lflow = value; | |
1468 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1469 | return count; | |
1470 | } | |
222f1806 | 1471 | |
45b270f8 RO |
1472 | if (!strcmp(name, "queue_map_min")) { |
1473 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1474 | if (len < 0) |
45b270f8 | 1475 | return len; |
63adc6fb | 1476 | |
45b270f8 RO |
1477 | i += len; |
1478 | pkt_dev->queue_map_min = value; | |
1479 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1480 | return count; | |
1481 | } | |
1482 | ||
1483 | if (!strcmp(name, "queue_map_max")) { | |
1484 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1485 | if (len < 0) |
45b270f8 | 1486 | return len; |
63adc6fb | 1487 | |
45b270f8 RO |
1488 | i += len; |
1489 | pkt_dev->queue_map_max = value; | |
1490 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1491 | return count; | |
1492 | } | |
1493 | ||
ca6549af | 1494 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1495 | unsigned n, cnt; |
1496 | ||
ca6549af | 1497 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1498 | if (len < 0) |
1499 | return len; | |
ca6549af | 1500 | i += len; |
cfcabdcc | 1501 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1502 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1503 | cnt += sprintf(pg_result + cnt, |
1504 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1505 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1506 | |
1507 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1508 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1509 | pkt_dev->svlan_id = 0xffff; | |
1510 | ||
1511 | if (debug) | |
25a8b254 | 1512 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1513 | } |
1514 | return count; | |
1515 | } | |
1516 | ||
1517 | if (!strcmp(name, "vlan_id")) { | |
1518 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1519 | if (len < 0) |
34954ddc | 1520 | return len; |
63adc6fb | 1521 | |
34954ddc FF |
1522 | i += len; |
1523 | if (value <= 4095) { | |
1524 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1525 | ||
1526 | if (debug) | |
25a8b254 | 1527 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1528 | |
1529 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1530 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1531 | |
1532 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1533 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1534 | } else { | |
1535 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1536 | pkt_dev->svlan_id = 0xffff; | |
1537 | ||
1538 | if (debug) | |
25a8b254 | 1539 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1540 | } |
1541 | return count; | |
1542 | } | |
1543 | ||
1544 | if (!strcmp(name, "vlan_p")) { | |
1545 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1546 | if (len < 0) |
34954ddc | 1547 | return len; |
63adc6fb | 1548 | |
34954ddc FF |
1549 | i += len; |
1550 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1551 | pkt_dev->vlan_p = value; | |
1552 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1553 | } else { | |
1554 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1555 | } | |
1556 | return count; | |
1557 | } | |
1558 | ||
1559 | if (!strcmp(name, "vlan_cfi")) { | |
1560 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1561 | if (len < 0) |
34954ddc | 1562 | return len; |
63adc6fb | 1563 | |
34954ddc FF |
1564 | i += len; |
1565 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1566 | pkt_dev->vlan_cfi = value; | |
1567 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1568 | } else { | |
1569 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1570 | } | |
1571 | return count; | |
1572 | } | |
1573 | ||
1574 | if (!strcmp(name, "svlan_id")) { | |
1575 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1576 | if (len < 0) |
34954ddc | 1577 | return len; |
63adc6fb | 1578 | |
34954ddc FF |
1579 | i += len; |
1580 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1581 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1582 | ||
1583 | if (debug) | |
25a8b254 | 1584 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1585 | |
1586 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1587 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1588 | |
1589 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1590 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1591 | } else { | |
1592 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1593 | pkt_dev->svlan_id = 0xffff; | |
1594 | ||
1595 | if (debug) | |
25a8b254 | 1596 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1597 | } |
1598 | return count; | |
1599 | } | |
1600 | ||
1601 | if (!strcmp(name, "svlan_p")) { | |
1602 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1603 | if (len < 0) |
34954ddc | 1604 | return len; |
63adc6fb | 1605 | |
34954ddc FF |
1606 | i += len; |
1607 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1608 | pkt_dev->svlan_p = value; | |
1609 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1610 | } else { | |
1611 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1612 | } | |
1613 | return count; | |
1614 | } | |
1615 | ||
1616 | if (!strcmp(name, "svlan_cfi")) { | |
1617 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1618 | if (len < 0) |
34954ddc | 1619 | return len; |
63adc6fb | 1620 | |
34954ddc FF |
1621 | i += len; |
1622 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1623 | pkt_dev->svlan_cfi = value; | |
1624 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1625 | } else { | |
1626 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1627 | } | |
ca6549af SW |
1628 | return count; |
1629 | } | |
1630 | ||
1ca7768c FF |
1631 | if (!strcmp(name, "tos")) { |
1632 | __u32 tmp_value = 0; | |
1633 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1634 | if (len < 0) |
1ca7768c | 1635 | return len; |
63adc6fb | 1636 | |
1ca7768c FF |
1637 | i += len; |
1638 | if (len == 2) { | |
1639 | pkt_dev->tos = tmp_value; | |
1640 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1641 | } else { | |
1642 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1643 | } | |
1644 | return count; | |
1645 | } | |
1646 | ||
1647 | if (!strcmp(name, "traffic_class")) { | |
1648 | __u32 tmp_value = 0; | |
1649 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1650 | if (len < 0) |
1ca7768c | 1651 | return len; |
63adc6fb | 1652 | |
1ca7768c FF |
1653 | i += len; |
1654 | if (len == 2) { | |
1655 | pkt_dev->traffic_class = tmp_value; | |
1656 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1657 | } else { | |
1658 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1659 | } | |
1660 | return count; | |
1661 | } | |
1662 | ||
1da177e4 LT |
1663 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1664 | return -EINVAL; | |
1665 | } | |
1666 | ||
d50a6b56 | 1667 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1668 | { |
d50a6b56 SH |
1669 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1670 | } | |
1da177e4 | 1671 | |
9a32144e | 1672 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1673 | .owner = THIS_MODULE, |
1674 | .open = pktgen_if_open, | |
1675 | .read = seq_read, | |
1676 | .llseek = seq_lseek, | |
1677 | .write = pktgen_if_write, | |
1678 | .release = single_release, | |
d50a6b56 | 1679 | }; |
1da177e4 | 1680 | |
d50a6b56 SH |
1681 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1682 | { | |
222f1806 | 1683 | struct pktgen_thread *t = seq->private; |
648fda74 | 1684 | const struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1685 | |
1686 | BUG_ON(!t); | |
1da177e4 | 1687 | |
222f1806 | 1688 | seq_printf(seq, "Running: "); |
1da177e4 | 1689 | |
222f1806 | 1690 | if_lock(t); |
c26a8016 | 1691 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1692 | if (pkt_dev->running) |
593f63b0 | 1693 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 | 1694 | |
222f1806 LC |
1695 | seq_printf(seq, "\nStopped: "); |
1696 | ||
c26a8016 | 1697 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1698 | if (!pkt_dev->running) |
593f63b0 | 1699 | seq_printf(seq, "%s ", pkt_dev->odevname); |
1da177e4 LT |
1700 | |
1701 | if (t->result[0]) | |
d50a6b56 | 1702 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1703 | else |
d50a6b56 | 1704 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1705 | |
222f1806 | 1706 | if_unlock(t); |
1da177e4 | 1707 | |
d50a6b56 | 1708 | return 0; |
1da177e4 LT |
1709 | } |
1710 | ||
d50a6b56 | 1711 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1712 | const char __user * user_buffer, |
1713 | size_t count, loff_t * offset) | |
1da177e4 | 1714 | { |
222f1806 LC |
1715 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1716 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1717 | int i = 0, max, len, ret; |
1718 | char name[40]; | |
222f1806 | 1719 | char *pg_result; |
d50a6b56 | 1720 | |
1da177e4 | 1721 | if (count < 1) { |
222f1806 | 1722 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1723 | return -EINVAL; |
1724 | } | |
d50a6b56 | 1725 | |
1da177e4 | 1726 | max = count - i; |
222f1806 LC |
1727 | len = count_trail_chars(&user_buffer[i], max); |
1728 | if (len < 0) | |
d50a6b56 SH |
1729 | return len; |
1730 | ||
1da177e4 | 1731 | i += len; |
d50a6b56 | 1732 | |
1da177e4 LT |
1733 | /* Read variable name */ |
1734 | ||
1735 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1736 | if (len < 0) |
d50a6b56 | 1737 | return len; |
222f1806 | 1738 | |
1da177e4 LT |
1739 | memset(name, 0, sizeof(name)); |
1740 | if (copy_from_user(name, &user_buffer[i], len)) | |
1741 | return -EFAULT; | |
1742 | i += len; | |
d50a6b56 | 1743 | |
222f1806 | 1744 | max = count - i; |
1da177e4 | 1745 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1746 | if (len < 0) |
d50a6b56 SH |
1747 | return len; |
1748 | ||
1da177e4 LT |
1749 | i += len; |
1750 | ||
d50a6b56 | 1751 | if (debug) |
25a8b254 DM |
1752 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1753 | name, (unsigned long)count); | |
1da177e4 | 1754 | |
222f1806 | 1755 | if (!t) { |
25a8b254 | 1756 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1757 | ret = -EINVAL; |
1758 | goto out; | |
1759 | } | |
1760 | ||
1761 | pg_result = &(t->result[0]); | |
1762 | ||
222f1806 LC |
1763 | if (!strcmp(name, "add_device")) { |
1764 | char f[32]; | |
1765 | memset(f, 0, 32); | |
1da177e4 | 1766 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1767 | if (len < 0) { |
1768 | ret = len; | |
1da177e4 LT |
1769 | goto out; |
1770 | } | |
222f1806 | 1771 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1772 | return -EFAULT; |
1773 | i += len; | |
6146e6a4 | 1774 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1775 | pktgen_add_device(t, f); |
6146e6a4 | 1776 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1777 | ret = count; |
1778 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1779 | goto out; |
1780 | } | |
1781 | ||
222f1806 | 1782 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1783 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1784 | t->control |= T_REMDEVALL; |
6146e6a4 | 1785 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1786 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1787 | ret = count; |
222f1806 | 1788 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1789 | goto out; |
1790 | } | |
1791 | ||
222f1806 | 1792 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1793 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1794 | ret = count; |
1da177e4 LT |
1795 | goto out; |
1796 | } | |
1797 | ||
1798 | ret = -EINVAL; | |
222f1806 | 1799 | out: |
1da177e4 LT |
1800 | return ret; |
1801 | } | |
1802 | ||
d50a6b56 | 1803 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1804 | { |
d50a6b56 | 1805 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1806 | } |
1807 | ||
9a32144e | 1808 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1809 | .owner = THIS_MODULE, |
1810 | .open = pktgen_thread_open, | |
1811 | .read = seq_read, | |
1812 | .llseek = seq_lseek, | |
1813 | .write = pktgen_thread_write, | |
1814 | .release = single_release, | |
d50a6b56 | 1815 | }; |
1da177e4 LT |
1816 | |
1817 | /* Think find or remove for NN */ | |
222f1806 | 1818 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1819 | { |
1820 | struct pktgen_thread *t; | |
1821 | struct pktgen_dev *pkt_dev = NULL; | |
3e984840 | 1822 | bool exact = (remove == FIND); |
1da177e4 | 1823 | |
cdcdbe0b | 1824 | list_for_each_entry(t, &pktgen_threads, th_list) { |
3e984840 | 1825 | pkt_dev = pktgen_find_dev(t, ifname, exact); |
1da177e4 | 1826 | if (pkt_dev) { |
222f1806 LC |
1827 | if (remove) { |
1828 | if_lock(t); | |
1829 | pkt_dev->removal_mark = 1; | |
1830 | t->control |= T_REMDEV; | |
1831 | if_unlock(t); | |
1832 | } | |
1da177e4 LT |
1833 | break; |
1834 | } | |
1da177e4 | 1835 | } |
222f1806 | 1836 | return pkt_dev; |
1da177e4 LT |
1837 | } |
1838 | ||
95ed63f7 AK |
1839 | /* |
1840 | * mark a device for removal | |
1841 | */ | |
39df232f | 1842 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1843 | { |
1844 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1845 | const int max_tries = 10, msec_per_try = 125; |
1846 | int i = 0; | |
95ed63f7 | 1847 | |
6146e6a4 | 1848 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1849 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1850 | |
222f1806 | 1851 | while (1) { |
95ed63f7 AK |
1852 | |
1853 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1854 | if (pkt_dev == NULL) |
1855 | break; /* success */ | |
95ed63f7 | 1856 | |
6146e6a4 | 1857 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1858 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1859 | "to disappear....\n", ifname); | |
95ed63f7 | 1860 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1861 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1862 | |
1863 | if (++i >= max_tries) { | |
25a8b254 DM |
1864 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1865 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1866 | msec_per_try * i, ifname); |
95ed63f7 AK |
1867 | break; |
1868 | } | |
1869 | ||
1870 | } | |
1871 | ||
6146e6a4 | 1872 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1873 | } |
95ed63f7 | 1874 | |
39df232f SH |
1875 | static void pktgen_change_name(struct net_device *dev) |
1876 | { | |
1877 | struct pktgen_thread *t; | |
1878 | ||
1879 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1880 | struct pktgen_dev *pkt_dev; | |
1881 | ||
1882 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1883 | if (pkt_dev->odev != dev) | |
1884 | continue; | |
1885 | ||
1886 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1887 | ||
2975315b AD |
1888 | pkt_dev->entry = proc_create_data(dev->name, 0600, |
1889 | pg_proc_dir, | |
1890 | &pktgen_if_fops, | |
1891 | pkt_dev); | |
39df232f SH |
1892 | if (!pkt_dev->entry) |
1893 | printk(KERN_ERR "pktgen: can't move proc " | |
1894 | " entry for '%s'\n", dev->name); | |
1895 | break; | |
1896 | } | |
1897 | } | |
1da177e4 LT |
1898 | } |
1899 | ||
222f1806 LC |
1900 | static int pktgen_device_event(struct notifier_block *unused, |
1901 | unsigned long event, void *ptr) | |
1da177e4 | 1902 | { |
39df232f | 1903 | struct net_device *dev = ptr; |
1da177e4 | 1904 | |
721499e8 | 1905 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1906 | return NOTIFY_DONE; |
1907 | ||
1da177e4 LT |
1908 | /* It is OK that we do not hold the group lock right now, |
1909 | * as we run under the RTNL lock. | |
1910 | */ | |
1911 | ||
1912 | switch (event) { | |
39df232f SH |
1913 | case NETDEV_CHANGENAME: |
1914 | pktgen_change_name(dev); | |
1da177e4 | 1915 | break; |
222f1806 | 1916 | |
1da177e4 | 1917 | case NETDEV_UNREGISTER: |
222f1806 | 1918 | pktgen_mark_device(dev->name); |
1da177e4 | 1919 | break; |
3ff50b79 | 1920 | } |
1da177e4 LT |
1921 | |
1922 | return NOTIFY_DONE; | |
1923 | } | |
1924 | ||
63adc6fb SH |
1925 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, |
1926 | const char *ifname) | |
e6fce5b9 RO |
1927 | { |
1928 | char b[IFNAMSIZ+5]; | |
1929 | int i = 0; | |
1930 | ||
63adc6fb SH |
1931 | for (i = 0; ifname[i] != '@'; i++) { |
1932 | if (i == IFNAMSIZ) | |
e6fce5b9 RO |
1933 | break; |
1934 | ||
1935 | b[i] = ifname[i]; | |
1936 | } | |
1937 | b[i] = 0; | |
1938 | ||
1939 | return dev_get_by_name(&init_net, b); | |
1940 | } | |
1941 | ||
1942 | ||
1da177e4 LT |
1943 | /* Associate pktgen_dev with a device. */ |
1944 | ||
39df232f | 1945 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1946 | { |
1da177e4 | 1947 | struct net_device *odev; |
39df232f | 1948 | int err; |
1da177e4 LT |
1949 | |
1950 | /* Clean old setups */ | |
1da177e4 LT |
1951 | if (pkt_dev->odev) { |
1952 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1953 | pkt_dev->odev = NULL; |
1954 | } | |
1da177e4 | 1955 | |
e6fce5b9 | 1956 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 1957 | if (!odev) { |
25a8b254 | 1958 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1959 | return -ENODEV; |
1da177e4 | 1960 | } |
39df232f | 1961 | |
1da177e4 | 1962 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1963 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1964 | err = -EINVAL; |
1965 | } else if (!netif_running(odev)) { | |
25a8b254 | 1966 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1967 | err = -ENETDOWN; |
1968 | } else { | |
1969 | pkt_dev->odev = odev; | |
1970 | return 0; | |
1da177e4 | 1971 | } |
1da177e4 | 1972 | |
1da177e4 | 1973 | dev_put(odev); |
39df232f | 1974 | return err; |
1da177e4 LT |
1975 | } |
1976 | ||
1977 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1978 | * structure to have the right information to create/send packets | |
1979 | */ | |
1980 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1981 | { | |
64c00d81 AG |
1982 | int ntxq; |
1983 | ||
222f1806 | 1984 | if (!pkt_dev->odev) { |
25a8b254 DM |
1985 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1986 | "setup_inject.\n"); | |
222f1806 LC |
1987 | sprintf(pkt_dev->result, |
1988 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1989 | return; | |
1990 | } | |
1991 | ||
64c00d81 AG |
1992 | /* make sure that we don't pick a non-existing transmit queue */ |
1993 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
bfdbc0ac | 1994 | |
64c00d81 AG |
1995 | if (ntxq <= pkt_dev->queue_map_min) { |
1996 | printk(KERN_WARNING "pktgen: WARNING: Requested " | |
88271660 JB |
1997 | "queue_map_min (zero-based) (%d) exceeds valid range " |
1998 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 1999 | pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq, |
593f63b0 | 2000 | pkt_dev->odevname); |
64c00d81 AG |
2001 | pkt_dev->queue_map_min = ntxq - 1; |
2002 | } | |
88271660 | 2003 | if (pkt_dev->queue_map_max >= ntxq) { |
64c00d81 | 2004 | printk(KERN_WARNING "pktgen: WARNING: Requested " |
88271660 JB |
2005 | "queue_map_max (zero-based) (%d) exceeds valid range " |
2006 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 2007 | pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq, |
593f63b0 | 2008 | pkt_dev->odevname); |
64c00d81 AG |
2009 | pkt_dev->queue_map_max = ntxq - 1; |
2010 | } | |
2011 | ||
222f1806 | 2012 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 2013 | |
f404e9a6 | 2014 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 2015 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 2016 | |
222f1806 | 2017 | /* Set up Dest MAC */ |
f404e9a6 | 2018 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2019 | |
222f1806 LC |
2020 | /* Set up pkt size */ |
2021 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
2022 | ||
2023 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 2024 | /* |
4ec93edb | 2025 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
2026 | * gets exported |
2027 | */ | |
2028 | ||
2029 | #ifdef NOTNOW | |
222f1806 | 2030 | int i, set = 0, err = 1; |
1da177e4 LT |
2031 | struct inet6_dev *idev; |
2032 | ||
222f1806 LC |
2033 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2034 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2035 | set = 1; |
2036 | break; | |
2037 | } | |
2038 | ||
222f1806 LC |
2039 | if (!set) { |
2040 | ||
1da177e4 LT |
2041 | /* |
2042 | * Use linklevel address if unconfigured. | |
2043 | * | |
2044 | * use ipv6_get_lladdr if/when it's get exported | |
2045 | */ | |
2046 | ||
8814c4b5 | 2047 | rcu_read_lock(); |
63adc6fb SH |
2048 | idev = __in6_dev_get(pkt_dev->odev); |
2049 | if (idev) { | |
1da177e4 LT |
2050 | struct inet6_ifaddr *ifp; |
2051 | ||
2052 | read_lock_bh(&idev->lock); | |
222f1806 LC |
2053 | for (ifp = idev->addr_list; ifp; |
2054 | ifp = ifp->if_next) { | |
f64f9e71 JP |
2055 | if (ifp->scope == IFA_LINK && |
2056 | !(ifp->flags & IFA_F_TENTATIVE)) { | |
222f1806 LC |
2057 | ipv6_addr_copy(&pkt_dev-> |
2058 | cur_in6_saddr, | |
2059 | &ifp->addr); | |
1da177e4 LT |
2060 | err = 0; |
2061 | break; | |
2062 | } | |
2063 | } | |
2064 | read_unlock_bh(&idev->lock); | |
2065 | } | |
8814c4b5 | 2066 | rcu_read_unlock(); |
222f1806 | 2067 | if (err) |
25a8b254 DM |
2068 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2069 | "address not availble.\n"); | |
1da177e4 LT |
2070 | } |
2071 | #endif | |
222f1806 | 2072 | } else { |
1da177e4 LT |
2073 | pkt_dev->saddr_min = 0; |
2074 | pkt_dev->saddr_max = 0; | |
2075 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2076 | |
2077 | struct in_device *in_dev; | |
1da177e4 LT |
2078 | |
2079 | rcu_read_lock(); | |
e5ed6399 | 2080 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2081 | if (in_dev) { |
2082 | if (in_dev->ifa_list) { | |
222f1806 LC |
2083 | pkt_dev->saddr_min = |
2084 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2085 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2086 | } | |
1da177e4 LT |
2087 | } |
2088 | rcu_read_unlock(); | |
222f1806 | 2089 | } else { |
1da177e4 LT |
2090 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2091 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2092 | } | |
2093 | ||
2094 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2095 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2096 | } | |
222f1806 LC |
2097 | /* Initialize current values. */ |
2098 | pkt_dev->cur_dst_mac_offset = 0; | |
2099 | pkt_dev->cur_src_mac_offset = 0; | |
2100 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2101 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2102 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2103 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2104 | pkt_dev->nflows = 0; |
2105 | } | |
2106 | ||
fd29cf72 SH |
2107 | |
2108 | static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) | |
2109 | { | |
ef87979c | 2110 | ktime_t start_time, end_time; |
417bc4b8 | 2111 | s64 remaining; |
2bc481cf SH |
2112 | struct hrtimer_sleeper t; |
2113 | ||
2114 | hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); | |
2115 | hrtimer_set_expires(&t.timer, spin_until); | |
2116 | ||
2117 | remaining = ktime_to_us(hrtimer_expires_remaining(&t.timer)); | |
417bc4b8 ED |
2118 | if (remaining <= 0) { |
2119 | pkt_dev->next_tx = ktime_add_ns(spin_until, pkt_dev->delay); | |
2bc481cf | 2120 | return; |
417bc4b8 | 2121 | } |
2bc481cf | 2122 | |
ef87979c | 2123 | start_time = ktime_now(); |
2bc481cf SH |
2124 | if (remaining < 100) |
2125 | udelay(remaining); /* really small just spin */ | |
2126 | else { | |
2127 | /* see do_nanosleep */ | |
2128 | hrtimer_init_sleeper(&t, current); | |
2129 | do { | |
2130 | set_current_state(TASK_INTERRUPTIBLE); | |
2131 | hrtimer_start_expires(&t.timer, HRTIMER_MODE_ABS); | |
2132 | if (!hrtimer_active(&t.timer)) | |
2133 | t.task = NULL; | |
2134 | ||
2135 | if (likely(t.task)) | |
1da177e4 | 2136 | schedule(); |
1da177e4 | 2137 | |
2bc481cf SH |
2138 | hrtimer_cancel(&t.timer); |
2139 | } while (t.task && pkt_dev->running && !signal_pending(current)); | |
2140 | __set_current_state(TASK_RUNNING); | |
1da177e4 | 2141 | } |
ef87979c SH |
2142 | end_time = ktime_now(); |
2143 | ||
2144 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(end_time, start_time)); | |
2145 | pkt_dev->next_tx = ktime_add_ns(end_time, pkt_dev->delay); | |
1da177e4 LT |
2146 | } |
2147 | ||
16dab72f JHS |
2148 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2149 | { | |
a553e4a6 | 2150 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2151 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2152 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2153 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2154 | } | |
2155 | ||
648fda74 | 2156 | static inline int f_seen(const struct pktgen_dev *pkt_dev, int flow) |
007a531b | 2157 | { |
648fda74 | 2158 | return !!(pkt_dev->flows[flow].flags & F_INIT); |
007a531b JHS |
2159 | } |
2160 | ||
2161 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2162 | { | |
2163 | int flow = pkt_dev->curfl; | |
2164 | ||
2165 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2166 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2167 | /* reset time */ | |
2168 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2169 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2170 | pkt_dev->curfl += 1; |
2171 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2172 | pkt_dev->curfl = 0; /*reset */ | |
2173 | } | |
2174 | } else { | |
2175 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2176 | pkt_dev->curfl = flow; |
007a531b | 2177 | |
1211a645 | 2178 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2179 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2180 | pkt_dev->flows[flow].flags = 0; |
2181 | } | |
007a531b JHS |
2182 | } |
2183 | ||
2184 | return pkt_dev->curfl; | |
2185 | } | |
2186 | ||
a553e4a6 JHS |
2187 | |
2188 | #ifdef CONFIG_XFRM | |
2189 | /* If there was already an IPSEC SA, we keep it as is, else | |
2190 | * we go look for it ... | |
2191 | */ | |
fea1ab0f | 2192 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2193 | { |
2194 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2195 | if (!x) { | |
2196 | /*slow path: we dont already have xfrm_state*/ | |
5447c5e4 AD |
2197 | x = xfrm_stateonly_find(&init_net, |
2198 | (xfrm_address_t *)&pkt_dev->cur_daddr, | |
a553e4a6 JHS |
2199 | (xfrm_address_t *)&pkt_dev->cur_saddr, |
2200 | AF_INET, | |
2201 | pkt_dev->ipsmode, | |
2202 | pkt_dev->ipsproto, 0); | |
2203 | if (x) { | |
2204 | pkt_dev->flows[flow].x = x; | |
2205 | set_pkt_overhead(pkt_dev); | |
63adc6fb | 2206 | pkt_dev->pkt_overhead += x->props.header_len; |
a553e4a6 JHS |
2207 | } |
2208 | ||
2209 | } | |
2210 | } | |
2211 | #endif | |
fd2ea0a7 DM |
2212 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2213 | { | |
e6fce5b9 RO |
2214 | |
2215 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2216 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2217 | ||
896a7cf8 | 2218 | else if (pkt_dev->queue_map_min <= pkt_dev->queue_map_max) { |
fd2ea0a7 DM |
2219 | __u16 t; |
2220 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2221 | t = random32() % | |
2222 | (pkt_dev->queue_map_max - | |
2223 | pkt_dev->queue_map_min + 1) | |
2224 | + pkt_dev->queue_map_min; | |
2225 | } else { | |
2226 | t = pkt_dev->cur_queue_map + 1; | |
2227 | if (t > pkt_dev->queue_map_max) | |
2228 | t = pkt_dev->queue_map_min; | |
2229 | } | |
2230 | pkt_dev->cur_queue_map = t; | |
2231 | } | |
bfdbc0ac | 2232 | pkt_dev->cur_queue_map = pkt_dev->cur_queue_map % pkt_dev->odev->real_num_tx_queues; |
fd2ea0a7 DM |
2233 | } |
2234 | ||
1da177e4 LT |
2235 | /* Increment/randomize headers according to flags and current values |
2236 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2237 | */ | |
222f1806 LC |
2238 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2239 | { | |
2240 | __u32 imn; | |
2241 | __u32 imx; | |
2242 | int flow = 0; | |
1da177e4 | 2243 | |
007a531b JHS |
2244 | if (pkt_dev->cflows) |
2245 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2246 | |
2247 | /* Deal with source MAC */ | |
222f1806 LC |
2248 | if (pkt_dev->src_mac_count > 1) { |
2249 | __u32 mc; | |
2250 | __u32 tmp; | |
2251 | ||
2252 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2253 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2254 | else { |
2255 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2256 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2257 | pkt_dev->src_mac_count) |
2258 | pkt_dev->cur_src_mac_offset = 0; | |
2259 | } | |
2260 | ||
2261 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2262 | pkt_dev->hh[11] = tmp; | |
2263 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2264 | pkt_dev->hh[10] = tmp; | |
2265 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2266 | pkt_dev->hh[9] = tmp; | |
2267 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2268 | pkt_dev->hh[8] = tmp; | |
2269 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2270 | pkt_dev->hh[7] = tmp; | |
2271 | } | |
2272 | ||
2273 | /* Deal with Destination MAC */ | |
2274 | if (pkt_dev->dst_mac_count > 1) { | |
2275 | __u32 mc; | |
2276 | __u32 tmp; | |
2277 | ||
2278 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2279 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2280 | |
2281 | else { | |
2282 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2283 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2284 | pkt_dev->dst_mac_count) { |
2285 | pkt_dev->cur_dst_mac_offset = 0; | |
2286 | } | |
2287 | } | |
2288 | ||
2289 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2290 | pkt_dev->hh[5] = tmp; | |
2291 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2292 | pkt_dev->hh[4] = tmp; | |
2293 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2294 | pkt_dev->hh[3] = tmp; | |
2295 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2296 | pkt_dev->hh[2] = tmp; | |
2297 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2298 | pkt_dev->hh[1] = tmp; | |
2299 | } | |
2300 | ||
ca6549af SW |
2301 | if (pkt_dev->flags & F_MPLS_RND) { |
2302 | unsigned i; | |
e71a4783 | 2303 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2304 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2305 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2306 | ((__force __be32)random32() & |
ca6549af SW |
2307 | htonl(0x000fffff)); |
2308 | } | |
2309 | ||
34954ddc | 2310 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2311 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2312 | } |
2313 | ||
2314 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2315 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2316 | } |
2317 | ||
222f1806 LC |
2318 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2319 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2320 | pkt_dev->cur_udp_src = random32() % |
2321 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2322 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2323 | |
2324 | else { | |
1da177e4 LT |
2325 | pkt_dev->cur_udp_src++; |
2326 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2327 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2328 | } |
2329 | } | |
2330 | ||
2331 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2332 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2333 | pkt_dev->cur_udp_dst = random32() % |
2334 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2335 | + pkt_dev->udp_dst_min; | |
222f1806 | 2336 | } else { |
1da177e4 | 2337 | pkt_dev->cur_udp_dst++; |
222f1806 | 2338 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2339 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2340 | } |
2341 | } | |
1da177e4 LT |
2342 | |
2343 | if (!(pkt_dev->flags & F_IPV6)) { | |
2344 | ||
63adc6fb SH |
2345 | imn = ntohl(pkt_dev->saddr_min); |
2346 | imx = ntohl(pkt_dev->saddr_max); | |
2347 | if (imn < imx) { | |
1da177e4 | 2348 | __u32 t; |
222f1806 | 2349 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2350 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2351 | else { |
2352 | t = ntohl(pkt_dev->cur_saddr); | |
2353 | t++; | |
63adc6fb | 2354 | if (t > imx) |
1da177e4 | 2355 | t = imn; |
63adc6fb | 2356 | |
1da177e4 LT |
2357 | } |
2358 | pkt_dev->cur_saddr = htonl(t); | |
2359 | } | |
222f1806 | 2360 | |
007a531b | 2361 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2362 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2363 | } else { | |
252e3346 AV |
2364 | imn = ntohl(pkt_dev->daddr_min); |
2365 | imx = ntohl(pkt_dev->daddr_max); | |
2366 | if (imn < imx) { | |
1da177e4 | 2367 | __u32 t; |
252e3346 | 2368 | __be32 s; |
1da177e4 LT |
2369 | if (pkt_dev->flags & F_IPDST_RND) { |
2370 | ||
5fa6fc76 | 2371 | t = random32() % (imx - imn) + imn; |
252e3346 | 2372 | s = htonl(t); |
1da177e4 | 2373 | |
21cf2253 JP |
2374 | while (ipv4_is_loopback(s) || |
2375 | ipv4_is_multicast(s) || | |
1e637c74 | 2376 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2377 | ipv4_is_zeronet(s) || |
2378 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2379 | t = random32() % (imx - imn) + imn; |
252e3346 | 2380 | s = htonl(t); |
1da177e4 | 2381 | } |
252e3346 AV |
2382 | pkt_dev->cur_daddr = s; |
2383 | } else { | |
1da177e4 LT |
2384 | t = ntohl(pkt_dev->cur_daddr); |
2385 | t++; | |
2386 | if (t > imx) { | |
2387 | t = imn; | |
2388 | } | |
2389 | pkt_dev->cur_daddr = htonl(t); | |
2390 | } | |
2391 | } | |
222f1806 | 2392 | if (pkt_dev->cflows) { |
007a531b | 2393 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2394 | pkt_dev->flows[flow].cur_daddr = |
2395 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2396 | #ifdef CONFIG_XFRM |
2397 | if (pkt_dev->flags & F_IPSEC_ON) | |
2398 | get_ipsec_sa(pkt_dev, flow); | |
2399 | #endif | |
1da177e4 LT |
2400 | pkt_dev->nflows++; |
2401 | } | |
2402 | } | |
222f1806 LC |
2403 | } else { /* IPV6 * */ |
2404 | ||
2405 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2406 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2407 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2408 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2409 | else { |
2410 | int i; | |
2411 | ||
2412 | /* Only random destinations yet */ | |
2413 | ||
222f1806 | 2414 | for (i = 0; i < 4; i++) { |
1da177e4 | 2415 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2416 | (((__force __be32)random32() | |
222f1806 LC |
2417 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2418 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2419 | } |
222f1806 | 2420 | } |
1da177e4 LT |
2421 | } |
2422 | ||
222f1806 LC |
2423 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2424 | __u32 t; | |
2425 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2426 | t = random32() % |
2427 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2428 | + pkt_dev->min_pkt_size; | |
222f1806 | 2429 | } else { |
1da177e4 | 2430 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2431 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2432 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2433 | } |
2434 | pkt_dev->cur_pkt_size = t; | |
2435 | } | |
1da177e4 | 2436 | |
fd2ea0a7 | 2437 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2438 | |
1da177e4 LT |
2439 | pkt_dev->flows[flow].count++; |
2440 | } | |
2441 | ||
a553e4a6 JHS |
2442 | |
2443 | #ifdef CONFIG_XFRM | |
2444 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2445 | { | |
2446 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2447 | int err = 0; | |
2448 | struct iphdr *iph; | |
2449 | ||
2450 | if (!x) | |
2451 | return 0; | |
2452 | /* XXX: we dont support tunnel mode for now until | |
2453 | * we resolve the dst issue */ | |
2454 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2455 | return 0; | |
2456 | ||
2457 | spin_lock(&x->lock); | |
2458 | iph = ip_hdr(skb); | |
2459 | ||
13996378 | 2460 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2461 | if (err) |
2462 | goto error; | |
2463 | err = x->type->output(x, skb); | |
2464 | if (err) | |
2465 | goto error; | |
2466 | ||
63adc6fb | 2467 | x->curlft.bytes += skb->len; |
a553e4a6 | 2468 | x->curlft.packets++; |
a553e4a6 JHS |
2469 | error: |
2470 | spin_unlock(&x->lock); | |
2471 | return err; | |
2472 | } | |
2473 | ||
475ac1e4 | 2474 | static void free_SAs(struct pktgen_dev *pkt_dev) |
a553e4a6 JHS |
2475 | { |
2476 | if (pkt_dev->cflows) { | |
2477 | /* let go of the SAs if we have them */ | |
2478 | int i = 0; | |
5b5f792a | 2479 | for (; i < pkt_dev->cflows; i++) { |
a553e4a6 JHS |
2480 | struct xfrm_state *x = pkt_dev->flows[i].x; |
2481 | if (x) { | |
2482 | xfrm_state_put(x); | |
2483 | pkt_dev->flows[i].x = NULL; | |
2484 | } | |
2485 | } | |
2486 | } | |
2487 | } | |
2488 | ||
475ac1e4 | 2489 | static int process_ipsec(struct pktgen_dev *pkt_dev, |
a553e4a6 JHS |
2490 | struct sk_buff *skb, __be16 protocol) |
2491 | { | |
2492 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2493 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2494 | int nhead = 0; | |
2495 | if (x) { | |
2496 | int ret; | |
2497 | __u8 *eth; | |
2498 | nhead = x->props.header_len - skb_headroom(skb); | |
63adc6fb | 2499 | if (nhead > 0) { |
a553e4a6 JHS |
2500 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); |
2501 | if (ret < 0) { | |
25a8b254 | 2502 | printk(KERN_ERR "Error expanding " |
63adc6fb | 2503 | "ipsec packet %d\n", ret); |
b4bb4ac8 | 2504 | goto err; |
a553e4a6 JHS |
2505 | } |
2506 | } | |
2507 | ||
2508 | /* ipsec is not expecting ll header */ | |
2509 | skb_pull(skb, ETH_HLEN); | |
2510 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2511 | if (ret) { | |
25a8b254 | 2512 | printk(KERN_ERR "Error creating ipsec " |
63adc6fb | 2513 | "packet %d\n", ret); |
b4bb4ac8 | 2514 | goto err; |
a553e4a6 JHS |
2515 | } |
2516 | /* restore ll */ | |
2517 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2518 | memcpy(eth, pkt_dev->hh, 12); | |
63adc6fb | 2519 | *(u16 *) ð[12] = protocol; |
a553e4a6 JHS |
2520 | } |
2521 | } | |
2522 | return 1; | |
b4bb4ac8 IJ |
2523 | err: |
2524 | kfree_skb(skb); | |
2525 | return 0; | |
a553e4a6 JHS |
2526 | } |
2527 | #endif | |
2528 | ||
ca6549af SW |
2529 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2530 | { | |
2531 | unsigned i; | |
63adc6fb | 2532 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af | 2533 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
63adc6fb | 2534 | |
ca6549af SW |
2535 | mpls--; |
2536 | *mpls |= MPLS_STACK_BOTTOM; | |
2537 | } | |
2538 | ||
0f37c605 AV |
2539 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2540 | unsigned int prio) | |
2541 | { | |
2542 | return htons(id | (cfi << 12) | (prio << 13)); | |
2543 | } | |
2544 | ||
222f1806 LC |
2545 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2546 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2547 | { |
2548 | struct sk_buff *skb = NULL; | |
2549 | __u8 *eth; | |
2550 | struct udphdr *udph; | |
2551 | int datalen, iplen; | |
2552 | struct iphdr *iph; | |
222f1806 | 2553 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2554 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2555 | __be32 *mpls; |
34954ddc FF |
2556 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2557 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2558 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2559 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2560 | u16 queue_map; |
ca6549af SW |
2561 | |
2562 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2563 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2564 | |
34954ddc | 2565 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2566 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2567 | |
64053bee RO |
2568 | /* Update any of the values, used when we're incrementing various |
2569 | * fields. | |
2570 | */ | |
fd2ea0a7 | 2571 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2572 | mod_cur_headers(pkt_dev); |
2573 | ||
7ac5459e | 2574 | datalen = (odev->hard_header_len + 16) & ~0xf; |
e470757d SH |
2575 | skb = __netdev_alloc_skb(odev, |
2576 | pkt_dev->cur_pkt_size + 64 | |
2577 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2578 | if (!skb) { |
2579 | sprintf(pkt_dev->result, "No memory"); | |
2580 | return NULL; | |
2581 | } | |
2582 | ||
7ac5459e | 2583 | skb_reserve(skb, datalen); |
1da177e4 LT |
2584 | |
2585 | /* Reserve for ethernet and IP header */ | |
2586 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2587 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2588 | if (pkt_dev->nr_labels) | |
2589 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2590 | |
2591 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2592 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2593 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2594 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2595 | pkt_dev->svlan_cfi, | |
2596 | pkt_dev->svlan_p); | |
34954ddc | 2597 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2598 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2599 | } |
2600 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2601 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2602 | pkt_dev->vlan_cfi, | |
2603 | pkt_dev->vlan_p); | |
34954ddc | 2604 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2605 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2606 | } |
2607 | ||
27a884dc | 2608 | skb->network_header = skb->tail; |
b0e380b1 | 2609 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2610 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2611 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2612 | iph = ip_hdr(skb); |
2613 | udph = udp_hdr(skb); | |
1da177e4 | 2614 | |
1da177e4 | 2615 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2616 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2617 | |
ca6549af SW |
2618 | /* Eth + IPh + UDPh + mpls */ |
2619 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2620 | pkt_dev->pkt_overhead; |
222f1806 | 2621 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2622 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2623 | |
1da177e4 LT |
2624 | udph->source = htons(pkt_dev->cur_udp_src); |
2625 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2626 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2627 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2628 | |
2629 | iph->ihl = 5; | |
2630 | iph->version = 4; | |
2631 | iph->ttl = 32; | |
1ca7768c | 2632 | iph->tos = pkt_dev->tos; |
222f1806 | 2633 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2634 | iph->saddr = pkt_dev->cur_saddr; |
2635 | iph->daddr = pkt_dev->cur_daddr; | |
66ed1e5e ED |
2636 | iph->id = htons(pkt_dev->ip_id); |
2637 | pkt_dev->ip_id++; | |
1da177e4 LT |
2638 | iph->frag_off = 0; |
2639 | iplen = 20 + 8 + datalen; | |
2640 | iph->tot_len = htons(iplen); | |
2641 | iph->check = 0; | |
222f1806 | 2642 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2643 | skb->protocol = protocol; |
b0e380b1 | 2644 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2645 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2646 | skb->dev = odev; |
2647 | skb->pkt_type = PACKET_HOST; | |
2648 | ||
66ed1e5e | 2649 | if (pkt_dev->nfrags <= 0) { |
222f1806 | 2650 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); |
66ed1e5e ED |
2651 | memset(pgh + 1, 0, datalen - sizeof(struct pktgen_hdr)); |
2652 | } else { | |
1da177e4 | 2653 | int frags = pkt_dev->nfrags; |
66ed1e5e | 2654 | int i, len; |
1da177e4 | 2655 | |
222f1806 LC |
2656 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2657 | ||
1da177e4 LT |
2658 | if (frags > MAX_SKB_FRAGS) |
2659 | frags = MAX_SKB_FRAGS; | |
222f1806 | 2660 | if (datalen > frags * PAGE_SIZE) { |
66ed1e5e ED |
2661 | len = datalen - frags * PAGE_SIZE; |
2662 | memset(skb_put(skb, len), 0, len); | |
222f1806 | 2663 | datalen = frags * PAGE_SIZE; |
1da177e4 LT |
2664 | } |
2665 | ||
2666 | i = 0; | |
2667 | while (datalen > 0) { | |
66ed1e5e | 2668 | struct page *page = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0); |
1da177e4 LT |
2669 | skb_shinfo(skb)->frags[i].page = page; |
2670 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2671 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2672 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2673 | datalen -= skb_shinfo(skb)->frags[i].size; |
2674 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2675 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2676 | i++; | |
2677 | skb_shinfo(skb)->nr_frags = i; | |
2678 | } | |
2679 | ||
2680 | while (i < frags) { | |
2681 | int rem; | |
2682 | ||
2683 | if (i == 0) | |
2684 | break; | |
2685 | ||
2686 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2687 | if (rem == 0) | |
2688 | break; | |
2689 | ||
2690 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2691 | ||
222f1806 LC |
2692 | skb_shinfo(skb)->frags[i] = |
2693 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2694 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2695 | skb_shinfo(skb)->frags[i].page = |
2696 | skb_shinfo(skb)->frags[i - 1].page; | |
2697 | skb_shinfo(skb)->frags[i].page_offset += | |
2698 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2699 | skb_shinfo(skb)->frags[i].size = rem; |
2700 | i++; | |
2701 | skb_shinfo(skb)->nr_frags = i; | |
2702 | } | |
2703 | } | |
2704 | ||
63adc6fb SH |
2705 | /* Stamp the time, and sequence number, |
2706 | * convert them to network byte order | |
2707 | */ | |
222f1806 LC |
2708 | if (pgh) { |
2709 | struct timeval timestamp; | |
2710 | ||
2711 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2712 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2713 | ||
2714 | do_gettimeofday(×tamp); | |
2715 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2716 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2717 | } | |
1da177e4 | 2718 | |
a553e4a6 JHS |
2719 | #ifdef CONFIG_XFRM |
2720 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2721 | return NULL; | |
2722 | #endif | |
2723 | ||
1da177e4 LT |
2724 | return skb; |
2725 | } | |
2726 | ||
2727 | /* | |
4ec93edb | 2728 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2729 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2730 | * | |
4ec93edb | 2731 | * Slightly modified for kernel. |
1da177e4 LT |
2732 | * Should be candidate for net/ipv4/utils.c |
2733 | * --ro | |
2734 | */ | |
2735 | ||
222f1806 | 2736 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2737 | { |
2738 | unsigned int i; | |
222f1806 | 2739 | unsigned int len = 0; |
1da177e4 LT |
2740 | unsigned long u; |
2741 | char suffix[16]; | |
222f1806 LC |
2742 | unsigned int prefixlen = 0; |
2743 | unsigned int suffixlen = 0; | |
252e3346 | 2744 | __be32 tmp; |
cfcabdcc | 2745 | char *pos; |
1da177e4 | 2746 | |
222f1806 LC |
2747 | for (i = 0; i < 16; i++) |
2748 | ip[i] = 0; | |
1da177e4 LT |
2749 | |
2750 | for (;;) { | |
2751 | if (*s == ':') { | |
2752 | len++; | |
222f1806 LC |
2753 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2754 | s += 2; | |
1da177e4 LT |
2755 | len++; |
2756 | break; | |
2757 | } | |
2758 | s++; | |
2759 | } | |
1da177e4 | 2760 | |
cfcabdcc SH |
2761 | u = simple_strtoul(s, &pos, 16); |
2762 | i = pos - s; | |
222f1806 LC |
2763 | if (!i) |
2764 | return 0; | |
2765 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2766 | |
2767 | /* the last 4 bytes may be written as IPv4 address */ | |
2768 | ||
2769 | tmp = in_aton(s); | |
222f1806 LC |
2770 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2771 | return i + len; | |
1da177e4 LT |
2772 | } |
2773 | ip[prefixlen++] = (u >> 8); | |
2774 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2775 | s += i; |
2776 | len += i; | |
2777 | if (prefixlen == 16) | |
1da177e4 LT |
2778 | return len; |
2779 | } | |
2780 | ||
2781 | /* part 2, after "::" */ | |
2782 | for (;;) { | |
2783 | if (*s == ':') { | |
222f1806 | 2784 | if (suffixlen == 0) |
1da177e4 LT |
2785 | break; |
2786 | s++; | |
2787 | len++; | |
222f1806 | 2788 | } else if (suffixlen != 0) |
1da177e4 | 2789 | break; |
cfcabdcc SH |
2790 | |
2791 | u = simple_strtol(s, &pos, 16); | |
2792 | i = pos - s; | |
1da177e4 | 2793 | if (!i) { |
222f1806 LC |
2794 | if (*s) |
2795 | len--; | |
1da177e4 LT |
2796 | break; |
2797 | } | |
222f1806 | 2798 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2799 | tmp = in_aton(s); |
222f1806 LC |
2800 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2801 | sizeof(tmp)); | |
2802 | suffixlen += 4; | |
2803 | len += strlen(s); | |
1da177e4 LT |
2804 | break; |
2805 | } | |
2806 | suffix[suffixlen++] = (u >> 8); | |
2807 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2808 | s += i; |
2809 | len += i; | |
2810 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2811 | break; |
2812 | } | |
222f1806 LC |
2813 | for (i = 0; i < suffixlen; i++) |
2814 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2815 | return len; |
2816 | } | |
2817 | ||
222f1806 LC |
2818 | static char tohex(char hexdigit) |
2819 | { | |
2820 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2821 | } |
2822 | ||
222f1806 LC |
2823 | static int fmt_xlong(char *s, unsigned int i) |
2824 | { | |
2825 | char *bak = s; | |
2826 | *s = tohex((i >> 12) & 0xf); | |
2827 | if (s != bak || *s != '0') | |
2828 | ++s; | |
2829 | *s = tohex((i >> 8) & 0xf); | |
2830 | if (s != bak || *s != '0') | |
2831 | ++s; | |
2832 | *s = tohex((i >> 4) & 0xf); | |
2833 | if (s != bak || *s != '0') | |
2834 | ++s; | |
2835 | *s = tohex(i & 0xf); | |
2836 | return s - bak + 1; | |
1da177e4 LT |
2837 | } |
2838 | ||
222f1806 LC |
2839 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2840 | { | |
1da177e4 LT |
2841 | unsigned int len; |
2842 | unsigned int i; | |
2843 | unsigned int temp; | |
2844 | unsigned int compressing; | |
2845 | int j; | |
2846 | ||
222f1806 LC |
2847 | len = 0; |
2848 | compressing = 0; | |
2849 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2850 | |
2851 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2852 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2853 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2854 | temp = strlen(s); | |
2855 | return len + temp; | |
1da177e4 LT |
2856 | } |
2857 | #endif | |
222f1806 LC |
2858 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2859 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2860 | if (temp == 0) { |
2861 | if (!compressing) { | |
222f1806 LC |
2862 | compressing = 1; |
2863 | if (j == 0) { | |
2864 | *s++ = ':'; | |
2865 | ++len; | |
1da177e4 LT |
2866 | } |
2867 | } | |
2868 | } else { | |
2869 | if (compressing) { | |
222f1806 LC |
2870 | compressing = 0; |
2871 | *s++ = ':'; | |
2872 | ++len; | |
1da177e4 | 2873 | } |
222f1806 LC |
2874 | i = fmt_xlong(s, temp); |
2875 | len += i; | |
2876 | s += i; | |
2877 | if (j < 14) { | |
1da177e4 LT |
2878 | *s++ = ':'; |
2879 | ++len; | |
2880 | } | |
2881 | } | |
2882 | } | |
2883 | if (compressing) { | |
222f1806 LC |
2884 | *s++ = ':'; |
2885 | ++len; | |
1da177e4 | 2886 | } |
222f1806 | 2887 | *s = 0; |
1da177e4 LT |
2888 | return len; |
2889 | } | |
2890 | ||
222f1806 LC |
2891 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2892 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2893 | { |
2894 | struct sk_buff *skb = NULL; | |
2895 | __u8 *eth; | |
2896 | struct udphdr *udph; | |
2897 | int datalen; | |
2898 | struct ipv6hdr *iph; | |
222f1806 | 2899 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2900 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2901 | __be32 *mpls; |
34954ddc FF |
2902 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2903 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2904 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2905 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2906 | u16 queue_map; |
ca6549af SW |
2907 | |
2908 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2909 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2910 | |
34954ddc | 2911 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2912 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2913 | |
64053bee RO |
2914 | /* Update any of the values, used when we're incrementing various |
2915 | * fields. | |
2916 | */ | |
fd2ea0a7 | 2917 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2918 | mod_cur_headers(pkt_dev); |
2919 | ||
e470757d SH |
2920 | skb = __netdev_alloc_skb(odev, |
2921 | pkt_dev->cur_pkt_size + 64 | |
2922 | + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2923 | if (!skb) { |
2924 | sprintf(pkt_dev->result, "No memory"); | |
2925 | return NULL; | |
2926 | } | |
2927 | ||
2928 | skb_reserve(skb, 16); | |
2929 | ||
2930 | /* Reserve for ethernet and IP header */ | |
2931 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2932 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2933 | if (pkt_dev->nr_labels) | |
2934 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2935 | |
2936 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2937 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2938 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2939 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2940 | pkt_dev->svlan_cfi, | |
2941 | pkt_dev->svlan_p); | |
34954ddc | 2942 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2943 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2944 | } |
2945 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2946 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2947 | pkt_dev->vlan_cfi, | |
2948 | pkt_dev->vlan_p); | |
34954ddc | 2949 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2950 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2951 | } |
2952 | ||
27a884dc | 2953 | skb->network_header = skb->tail; |
b0e380b1 | 2954 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2955 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2956 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2957 | iph = ipv6_hdr(skb); |
2958 | udph = udp_hdr(skb); | |
1da177e4 | 2959 | |
1da177e4 | 2960 | memcpy(eth, pkt_dev->hh, 12); |
63adc6fb | 2961 | *(__be16 *) ð[12] = protocol; |
64053bee | 2962 | |
ca6549af SW |
2963 | /* Eth + IPh + UDPh + mpls */ |
2964 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2965 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2966 | pkt_dev->pkt_overhead; |
1da177e4 | 2967 | |
222f1806 | 2968 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2969 | datalen = sizeof(struct pktgen_hdr); |
2970 | if (net_ratelimit()) | |
222f1806 LC |
2971 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2972 | datalen); | |
1da177e4 LT |
2973 | } |
2974 | ||
2975 | udph->source = htons(pkt_dev->cur_udp_src); | |
2976 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2977 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2978 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2979 | |
d5f1ce9a | 2980 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2981 | |
1ca7768c FF |
2982 | if (pkt_dev->traffic_class) { |
2983 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2984 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2985 | } |
2986 | ||
1da177e4 LT |
2987 | iph->hop_limit = 32; |
2988 | ||
2989 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2990 | iph->nexthdr = IPPROTO_UDP; | |
2991 | ||
2992 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2993 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2994 | ||
b0e380b1 | 2995 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2996 | pkt_dev->pkt_overhead); |
ca6549af | 2997 | skb->protocol = protocol; |
1da177e4 LT |
2998 | skb->dev = odev; |
2999 | skb->pkt_type = PACKET_HOST; | |
3000 | ||
222f1806 LC |
3001 | if (pkt_dev->nfrags <= 0) |
3002 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
3003 | else { |
3004 | int frags = pkt_dev->nfrags; | |
3005 | int i; | |
3006 | ||
222f1806 LC |
3007 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
3008 | ||
1da177e4 LT |
3009 | if (frags > MAX_SKB_FRAGS) |
3010 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
3011 | if (datalen > frags * PAGE_SIZE) { |
3012 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
3013 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
3014 | } |
3015 | ||
3016 | i = 0; | |
3017 | while (datalen > 0) { | |
3018 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
3019 | skb_shinfo(skb)->frags[i].page = page; | |
3020 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
3021 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 3022 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
3023 | datalen -= skb_shinfo(skb)->frags[i].size; |
3024 | skb->len += skb_shinfo(skb)->frags[i].size; | |
3025 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
3026 | i++; | |
3027 | skb_shinfo(skb)->nr_frags = i; | |
3028 | } | |
3029 | ||
3030 | while (i < frags) { | |
3031 | int rem; | |
3032 | ||
3033 | if (i == 0) | |
3034 | break; | |
3035 | ||
3036 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
3037 | if (rem == 0) | |
3038 | break; | |
3039 | ||
3040 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
3041 | ||
222f1806 LC |
3042 | skb_shinfo(skb)->frags[i] = |
3043 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 3044 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
3045 | skb_shinfo(skb)->frags[i].page = |
3046 | skb_shinfo(skb)->frags[i - 1].page; | |
3047 | skb_shinfo(skb)->frags[i].page_offset += | |
3048 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
3049 | skb_shinfo(skb)->frags[i].size = rem; |
3050 | i++; | |
3051 | skb_shinfo(skb)->nr_frags = i; | |
3052 | } | |
3053 | } | |
3054 | ||
63adc6fb SH |
3055 | /* Stamp the time, and sequence number, |
3056 | * convert them to network byte order | |
3057 | * should we update cloned packets too ? | |
3058 | */ | |
222f1806 LC |
3059 | if (pgh) { |
3060 | struct timeval timestamp; | |
3061 | ||
3062 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
3063 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
3064 | ||
3065 | do_gettimeofday(×tamp); | |
3066 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
3067 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
3068 | } | |
34954ddc | 3069 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 3070 | |
1da177e4 LT |
3071 | return skb; |
3072 | } | |
3073 | ||
475ac1e4 SH |
3074 | static struct sk_buff *fill_packet(struct net_device *odev, |
3075 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3076 | { |
222f1806 | 3077 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
3078 | return fill_packet_ipv6(odev, pkt_dev); |
3079 | else | |
3080 | return fill_packet_ipv4(odev, pkt_dev); | |
3081 | } | |
3082 | ||
222f1806 | 3083 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 3084 | { |
222f1806 LC |
3085 | pkt_dev->seq_num = 1; |
3086 | pkt_dev->idle_acc = 0; | |
1da177e4 | 3087 | pkt_dev->sofar = 0; |
222f1806 LC |
3088 | pkt_dev->tx_bytes = 0; |
3089 | pkt_dev->errors = 0; | |
1da177e4 LT |
3090 | } |
3091 | ||
3092 | /* Set up structure for sending pkts, clear counters */ | |
3093 | ||
3094 | static void pktgen_run(struct pktgen_thread *t) | |
3095 | { | |
c26a8016 | 3096 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
3097 | int started = 0; |
3098 | ||
25c4e53a | 3099 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
3100 | |
3101 | if_lock(t); | |
c26a8016 | 3102 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3103 | |
3104 | /* | |
3105 | * setup odev and create initial packet. | |
3106 | */ | |
3107 | pktgen_setup_inject(pkt_dev); | |
3108 | ||
222f1806 | 3109 | if (pkt_dev->odev) { |
1da177e4 | 3110 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3111 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 | 3112 | pkt_dev->skb = NULL; |
fd29cf72 SH |
3113 | pkt_dev->started_at = |
3114 | pkt_dev->next_tx = ktime_now(); | |
3115 | ||
16dab72f | 3116 | set_pkt_overhead(pkt_dev); |
222f1806 | 3117 | |
1da177e4 LT |
3118 | strcpy(pkt_dev->result, "Starting"); |
3119 | started++; | |
222f1806 | 3120 | } else |
1da177e4 LT |
3121 | strcpy(pkt_dev->result, "Error starting"); |
3122 | } | |
3123 | if_unlock(t); | |
222f1806 LC |
3124 | if (started) |
3125 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3126 | } |
3127 | ||
3128 | static void pktgen_stop_all_threads_ifs(void) | |
3129 | { | |
cdcdbe0b | 3130 | struct pktgen_thread *t; |
1da177e4 | 3131 | |
25c4e53a | 3132 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3133 | |
6146e6a4 | 3134 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3135 | |
3136 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3137 | t->control |= T_STOP; |
cdcdbe0b | 3138 | |
6146e6a4 | 3139 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3140 | } |
3141 | ||
648fda74 | 3142 | static int thread_is_running(const struct pktgen_thread *t) |
1da177e4 | 3143 | { |
648fda74 | 3144 | const struct pktgen_dev *pkt_dev; |
1da177e4 | 3145 | |
c26a8016 | 3146 | list_for_each_entry(pkt_dev, &t->if_list, list) |
648fda74 SH |
3147 | if (pkt_dev->running) |
3148 | return 1; | |
3149 | return 0; | |
1da177e4 LT |
3150 | } |
3151 | ||
222f1806 | 3152 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3153 | { |
222f1806 | 3154 | if_lock(t); |
1da177e4 | 3155 | |
222f1806 | 3156 | while (thread_is_running(t)) { |
1da177e4 | 3157 | |
222f1806 | 3158 | if_unlock(t); |
1da177e4 | 3159 | |
222f1806 | 3160 | msleep_interruptible(100); |
1da177e4 | 3161 | |
222f1806 LC |
3162 | if (signal_pending(current)) |
3163 | goto signal; | |
3164 | if_lock(t); | |
3165 | } | |
3166 | if_unlock(t); | |
3167 | return 1; | |
3168 | signal: | |
3169 | return 0; | |
1da177e4 LT |
3170 | } |
3171 | ||
3172 | static int pktgen_wait_all_threads_run(void) | |
3173 | { | |
cdcdbe0b | 3174 | struct pktgen_thread *t; |
1da177e4 | 3175 | int sig = 1; |
222f1806 | 3176 | |
6146e6a4 | 3177 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3178 | |
3179 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3180 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3181 | if (sig == 0) |
3182 | break; | |
1da177e4 | 3183 | } |
cdcdbe0b LC |
3184 | |
3185 | if (sig == 0) | |
3186 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3187 | t->control |= (T_STOP); |
cdcdbe0b | 3188 | |
6146e6a4 | 3189 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3190 | return sig; |
3191 | } | |
3192 | ||
3193 | static void pktgen_run_all_threads(void) | |
3194 | { | |
cdcdbe0b | 3195 | struct pktgen_thread *t; |
1da177e4 | 3196 | |
25c4e53a | 3197 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3198 | |
6146e6a4 | 3199 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3200 | |
cdcdbe0b | 3201 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3202 | t->control |= (T_RUN); |
cdcdbe0b | 3203 | |
6146e6a4 | 3204 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3205 | |
63adc6fb SH |
3206 | /* Propagate thread->control */ |
3207 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
222f1806 | 3208 | |
1da177e4 LT |
3209 | pktgen_wait_all_threads_run(); |
3210 | } | |
3211 | ||
eb37b41c JB |
3212 | static void pktgen_reset_all_threads(void) |
3213 | { | |
3214 | struct pktgen_thread *t; | |
3215 | ||
3216 | pr_debug("pktgen: entering pktgen_reset_all_threads.\n"); | |
3217 | ||
3218 | mutex_lock(&pktgen_thread_lock); | |
3219 | ||
3220 | list_for_each_entry(t, &pktgen_threads, th_list) | |
3221 | t->control |= (T_REMDEVALL); | |
3222 | ||
3223 | mutex_unlock(&pktgen_thread_lock); | |
3224 | ||
63adc6fb SH |
3225 | /* Propagate thread->control */ |
3226 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
eb37b41c JB |
3227 | |
3228 | pktgen_wait_all_threads_run(); | |
3229 | } | |
3230 | ||
1da177e4 LT |
3231 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3232 | { | |
fd29cf72 | 3233 | __u64 bps, mbps, pps; |
222f1806 | 3234 | char *p = pkt_dev->result; |
fd29cf72 SH |
3235 | ktime_t elapsed = ktime_sub(pkt_dev->stopped_at, |
3236 | pkt_dev->started_at); | |
3237 | ktime_t idle = ns_to_ktime(pkt_dev->idle_acc); | |
3238 | ||
3239 | p += sprintf(p, "OK: %llu(c%llu+d%llu) nsec, %llu (%dbyte,%dfrags)\n", | |
3240 | (unsigned long long)ktime_to_us(elapsed), | |
3241 | (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)), | |
3242 | (unsigned long long)ktime_to_us(idle), | |
222f1806 LC |
3243 | (unsigned long long)pkt_dev->sofar, |
3244 | pkt_dev->cur_pkt_size, nr_frags); | |
3245 | ||
fd29cf72 SH |
3246 | pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, |
3247 | ktime_to_ns(elapsed)); | |
222f1806 LC |
3248 | |
3249 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3250 | ||
3251 | mbps = bps; | |
3252 | do_div(mbps, 1000000); | |
3253 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3254 | (unsigned long long)pps, | |
3255 | (unsigned long long)mbps, | |
3256 | (unsigned long long)bps, | |
3257 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3258 | } |
1da177e4 LT |
3259 | |
3260 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
222f1806 | 3261 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3262 | { |
222f1806 | 3263 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3264 | |
222f1806 | 3265 | if (!pkt_dev->running) { |
25a8b254 | 3266 | printk(KERN_WARNING "pktgen: interface: %s is already " |
593f63b0 | 3267 | "stopped\n", pkt_dev->odevname); |
222f1806 LC |
3268 | return -EINVAL; |
3269 | } | |
1da177e4 | 3270 | |
3bda06a3 SH |
3271 | kfree_skb(pkt_dev->skb); |
3272 | pkt_dev->skb = NULL; | |
fd29cf72 | 3273 | pkt_dev->stopped_at = ktime_now(); |
222f1806 | 3274 | pkt_dev->running = 0; |
1da177e4 | 3275 | |
95ed63f7 | 3276 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3277 | |
222f1806 | 3278 | return 0; |
1da177e4 LT |
3279 | } |
3280 | ||
222f1806 | 3281 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3282 | { |
c26a8016 | 3283 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3284 | |
1da177e4 LT |
3285 | if_lock(t); |
3286 | ||
c26a8016 LC |
3287 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3288 | if (!pkt_dev->running) | |
222f1806 LC |
3289 | continue; |
3290 | if (best == NULL) | |
c26a8016 | 3291 | best = pkt_dev; |
fd29cf72 | 3292 | else if (ktime_lt(pkt_dev->next_tx, best->next_tx)) |
c26a8016 | 3293 | best = pkt_dev; |
1da177e4 LT |
3294 | } |
3295 | if_unlock(t); | |
222f1806 | 3296 | return best; |
1da177e4 LT |
3297 | } |
3298 | ||
222f1806 LC |
3299 | static void pktgen_stop(struct pktgen_thread *t) |
3300 | { | |
c26a8016 | 3301 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3302 | |
25c4e53a | 3303 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3304 | |
222f1806 | 3305 | if_lock(t); |
1da177e4 | 3306 | |
c26a8016 LC |
3307 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3308 | pktgen_stop_device(pkt_dev); | |
95ed63f7 | 3309 | } |
1da177e4 | 3310 | |
222f1806 | 3311 | if_unlock(t); |
1da177e4 LT |
3312 | } |
3313 | ||
95ed63f7 AK |
3314 | /* |
3315 | * one of our devices needs to be removed - find it | |
3316 | * and remove it | |
3317 | */ | |
3318 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3319 | { | |
c26a8016 LC |
3320 | struct list_head *q, *n; |
3321 | struct pktgen_dev *cur; | |
95ed63f7 | 3322 | |
25c4e53a | 3323 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3324 | |
3325 | if_lock(t); | |
3326 | ||
c26a8016 LC |
3327 | list_for_each_safe(q, n, &t->if_list) { |
3328 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3329 | |
222f1806 LC |
3330 | if (!cur->removal_mark) |
3331 | continue; | |
95ed63f7 | 3332 | |
86dc1ad2 | 3333 | kfree_skb(cur->skb); |
95ed63f7 AK |
3334 | cur->skb = NULL; |
3335 | ||
3336 | pktgen_remove_device(t, cur); | |
3337 | ||
3338 | break; | |
3339 | } | |
3340 | ||
3341 | if_unlock(t); | |
3342 | } | |
3343 | ||
222f1806 | 3344 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3345 | { |
c26a8016 LC |
3346 | struct list_head *q, *n; |
3347 | struct pktgen_dev *cur; | |
222f1806 LC |
3348 | |
3349 | /* Remove all devices, free mem */ | |
95ed63f7 | 3350 | |
25c4e53a | 3351 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3352 | if_lock(t); |
1da177e4 | 3353 | |
c26a8016 LC |
3354 | list_for_each_safe(q, n, &t->if_list) { |
3355 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3356 | |
86dc1ad2 | 3357 | kfree_skb(cur->skb); |
95ed63f7 AK |
3358 | cur->skb = NULL; |
3359 | ||
1da177e4 LT |
3360 | pktgen_remove_device(t, cur); |
3361 | } | |
3362 | ||
222f1806 | 3363 | if_unlock(t); |
1da177e4 LT |
3364 | } |
3365 | ||
222f1806 | 3366 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3367 | { |
222f1806 | 3368 | /* Remove from the thread list */ |
1da177e4 | 3369 | |
ee74baa7 | 3370 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3371 | |
6146e6a4 | 3372 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3373 | |
cdcdbe0b LC |
3374 | list_del(&t->th_list); |
3375 | ||
6146e6a4 | 3376 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3377 | } |
3378 | ||
ef87979c | 3379 | static void pktgen_resched(struct pktgen_dev *pkt_dev) |
3791decb | 3380 | { |
fd29cf72 | 3381 | ktime_t idle_start = ktime_now(); |
ef87979c SH |
3382 | schedule(); |
3383 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); | |
3384 | } | |
3791decb | 3385 | |
ef87979c SH |
3386 | static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev) |
3387 | { | |
3388 | ktime_t idle_start = ktime_now(); | |
3791decb | 3389 | |
ef87979c SH |
3390 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { |
3391 | if (signal_pending(current)) | |
3392 | break; | |
3393 | ||
3394 | if (need_resched()) | |
3395 | pktgen_resched(pkt_dev); | |
3396 | else | |
3397 | cpu_relax(); | |
3398 | } | |
fd29cf72 | 3399 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); |
3791decb SH |
3400 | } |
3401 | ||
475ac1e4 | 3402 | static void pktgen_xmit(struct pktgen_dev *pkt_dev) |
1da177e4 | 3403 | { |
00829823 | 3404 | struct net_device *odev = pkt_dev->odev; |
6fef4c0c | 3405 | netdev_tx_t (*xmit)(struct sk_buff *, struct net_device *) |
00829823 | 3406 | = odev->netdev_ops->ndo_start_xmit; |
fd2ea0a7 | 3407 | struct netdev_queue *txq; |
fd2ea0a7 | 3408 | u16 queue_map; |
1da177e4 LT |
3409 | int ret; |
3410 | ||
ef87979c SH |
3411 | /* If device is offline, then don't send */ |
3412 | if (unlikely(!netif_running(odev) || !netif_carrier_ok(odev))) { | |
3413 | pktgen_stop_device(pkt_dev); | |
3414 | return; | |
fd2ea0a7 DM |
3415 | } |
3416 | ||
ef87979c SH |
3417 | /* This is max DELAY, this has special meaning of |
3418 | * "never transmit" | |
3419 | */ | |
3420 | if (unlikely(pkt_dev->delay == ULLONG_MAX)) { | |
3421 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX); | |
3791decb | 3422 | return; |
1da177e4 | 3423 | } |
222f1806 | 3424 | |
ef87979c | 3425 | /* If no skb or clone count exhausted then get new one */ |
7d7bb1cf SH |
3426 | if (!pkt_dev->skb || (pkt_dev->last_ok && |
3427 | ++pkt_dev->clone_count >= pkt_dev->clone_skb)) { | |
3428 | /* build a new pkt */ | |
3429 | kfree_skb(pkt_dev->skb); | |
3430 | ||
3431 | pkt_dev->skb = fill_packet(odev, pkt_dev); | |
3432 | if (pkt_dev->skb == NULL) { | |
3433 | printk(KERN_ERR "pktgen: ERROR: couldn't " | |
3434 | "allocate skb in fill_packet.\n"); | |
3435 | schedule(); | |
3436 | pkt_dev->clone_count--; /* back out increment, OOM */ | |
3437 | return; | |
1da177e4 | 3438 | } |
baac8564 | 3439 | pkt_dev->last_pkt_size = pkt_dev->skb->len; |
7d7bb1cf SH |
3440 | pkt_dev->allocated_skbs++; |
3441 | pkt_dev->clone_count = 0; /* reset counter */ | |
1da177e4 | 3442 | } |
95ed63f7 | 3443 | |
ef87979c SH |
3444 | if (pkt_dev->delay && pkt_dev->last_ok) |
3445 | spin(pkt_dev, pkt_dev->next_tx); | |
3446 | ||
fd2ea0a7 DM |
3447 | queue_map = skb_get_queue_mapping(pkt_dev->skb); |
3448 | txq = netdev_get_tx_queue(odev, queue_map); | |
3449 | ||
3450 | __netif_tx_lock_bh(txq); | |
5b8db2f5 | 3451 | |
0835acfe | 3452 | if (unlikely(netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq))) { |
ef87979c | 3453 | ret = NETDEV_TX_BUSY; |
0835acfe ED |
3454 | pkt_dev->last_ok = 0; |
3455 | goto unlock; | |
3456 | } | |
3457 | atomic_inc(&(pkt_dev->skb->users)); | |
3458 | ret = (*xmit)(pkt_dev->skb, odev); | |
ef87979c SH |
3459 | |
3460 | switch (ret) { | |
3461 | case NETDEV_TX_OK: | |
3462 | txq_trans_update(txq); | |
3463 | pkt_dev->last_ok = 1; | |
3464 | pkt_dev->sofar++; | |
3465 | pkt_dev->seq_num++; | |
baac8564 | 3466 | pkt_dev->tx_bytes += pkt_dev->last_pkt_size; |
ef87979c SH |
3467 | break; |
3468 | default: /* Drivers are not supposed to return other values! */ | |
3469 | if (net_ratelimit()) | |
3470 | pr_info("pktgen: %s xmit error: %d\n", | |
593f63b0 | 3471 | pkt_dev->odevname, ret); |
ef87979c SH |
3472 | pkt_dev->errors++; |
3473 | /* fallthru */ | |
3474 | case NETDEV_TX_LOCKED: | |
3475 | case NETDEV_TX_BUSY: | |
3476 | /* Retry it next time */ | |
3477 | atomic_dec(&(pkt_dev->skb->users)); | |
3478 | pkt_dev->last_ok = 0; | |
222f1806 | 3479 | } |
0835acfe | 3480 | unlock: |
fd2ea0a7 | 3481 | __netif_tx_unlock_bh(txq); |
222f1806 | 3482 | |
1da177e4 LT |
3483 | /* If pkt_dev->count is zero, then run forever */ |
3484 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
ef87979c | 3485 | pktgen_wait_for_skb(pkt_dev); |
222f1806 | 3486 | |
1da177e4 LT |
3487 | /* Done with this */ |
3488 | pktgen_stop_device(pkt_dev); | |
222f1806 | 3489 | } |
222f1806 | 3490 | } |
1da177e4 | 3491 | |
4ec93edb | 3492 | /* |
1da177e4 LT |
3493 | * Main loop of the thread goes here |
3494 | */ | |
3495 | ||
ee74baa7 | 3496 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3497 | { |
3498 | DEFINE_WAIT(wait); | |
ee74baa7 | 3499 | struct pktgen_thread *t = arg; |
222f1806 | 3500 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3501 | int cpu = t->cpu; |
1da177e4 | 3502 | |
ee74baa7 | 3503 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3504 | |
3505 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3506 | complete(&t->start_done); |
1da177e4 | 3507 | |
63adc6fb SH |
3508 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", |
3509 | cpu, task_pid_nr(current)); | |
1da177e4 | 3510 | |
ee74baa7 | 3511 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3512 | |
83144186 RW |
3513 | set_freezable(); |
3514 | ||
ee74baa7 DM |
3515 | while (!kthread_should_stop()) { |
3516 | pkt_dev = next_to_run(t); | |
1da177e4 | 3517 | |
ef87979c SH |
3518 | if (unlikely(!pkt_dev && t->control == 0)) { |
3519 | wait_event_interruptible_timeout(t->queue, | |
3520 | t->control != 0, | |
3521 | HZ/10); | |
3522 | continue; | |
ee74baa7 | 3523 | } |
1da177e4 | 3524 | |
ee74baa7 | 3525 | __set_current_state(TASK_RUNNING); |
222f1806 | 3526 | |
ef87979c | 3527 | if (likely(pkt_dev)) { |
1da177e4 LT |
3528 | pktgen_xmit(pkt_dev); |
3529 | ||
ef87979c SH |
3530 | if (need_resched()) |
3531 | pktgen_resched(pkt_dev); | |
3532 | else | |
3533 | cpu_relax(); | |
3534 | } | |
3535 | ||
222f1806 | 3536 | if (t->control & T_STOP) { |
1da177e4 LT |
3537 | pktgen_stop(t); |
3538 | t->control &= ~(T_STOP); | |
3539 | } | |
3540 | ||
222f1806 | 3541 | if (t->control & T_RUN) { |
1da177e4 LT |
3542 | pktgen_run(t); |
3543 | t->control &= ~(T_RUN); | |
3544 | } | |
3545 | ||
222f1806 | 3546 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3547 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3548 | t->control &= ~(T_REMDEVALL); |
3549 | } | |
3550 | ||
222f1806 | 3551 | if (t->control & T_REMDEV) { |
95ed63f7 | 3552 | pktgen_rem_one_if(t); |
1da177e4 LT |
3553 | t->control &= ~(T_REMDEV); |
3554 | } | |
3555 | ||
09fe3ef4 AM |
3556 | try_to_freeze(); |
3557 | ||
ee74baa7 | 3558 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3559 | } |
1da177e4 | 3560 | |
25c4e53a | 3561 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3562 | pktgen_stop(t); |
1da177e4 | 3563 | |
25c4e53a | 3564 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3565 | pktgen_rem_all_ifs(t); |
1da177e4 | 3566 | |
25c4e53a | 3567 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3568 | pktgen_rem_thread(t); |
cdcdbe0b | 3569 | |
ee74baa7 | 3570 | return 0; |
1da177e4 LT |
3571 | } |
3572 | ||
222f1806 | 3573 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3e984840 | 3574 | const char *ifname, bool exact) |
1da177e4 | 3575 | { |
c26a8016 | 3576 | struct pktgen_dev *p, *pkt_dev = NULL; |
3e984840 | 3577 | size_t len = strlen(ifname); |
222f1806 | 3578 | |
3e984840 | 3579 | if_lock(t); |
c26a8016 | 3580 | list_for_each_entry(p, &t->if_list, list) |
3e984840 ED |
3581 | if (strncmp(p->odevname, ifname, len) == 0) { |
3582 | if (p->odevname[len]) { | |
3583 | if (exact || p->odevname[len] != '@') | |
3584 | continue; | |
3585 | } | |
c26a8016 | 3586 | pkt_dev = p; |
222f1806 LC |
3587 | break; |
3588 | } | |
222f1806 LC |
3589 | |
3590 | if_unlock(t); | |
25c4e53a | 3591 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3592 | return pkt_dev; |
1da177e4 LT |
3593 | } |
3594 | ||
4ec93edb YH |
3595 | /* |
3596 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3597 | */ |
3598 | ||
222f1806 LC |
3599 | static int add_dev_to_thread(struct pktgen_thread *t, |
3600 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3601 | { |
3602 | int rv = 0; | |
222f1806 LC |
3603 | |
3604 | if_lock(t); | |
3605 | ||
3606 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3607 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3608 | "to a thread.\n"); | |
222f1806 LC |
3609 | rv = -EBUSY; |
3610 | goto out; | |
3611 | } | |
c26a8016 LC |
3612 | |
3613 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3614 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3615 | pkt_dev->running = 0; |
3616 | ||
222f1806 LC |
3617 | out: |
3618 | if_unlock(t); | |
3619 | return rv; | |
1da177e4 LT |
3620 | } |
3621 | ||
3622 | /* Called under thread lock */ | |
3623 | ||
222f1806 | 3624 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3625 | { |
222f1806 | 3626 | struct pktgen_dev *pkt_dev; |
39df232f | 3627 | int err; |
3291b9db | 3628 | int node = cpu_to_node(t->cpu); |
222f1806 | 3629 | |
1da177e4 LT |
3630 | /* We don't allow a device to be on several threads */ |
3631 | ||
d50a6b56 SH |
3632 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3633 | if (pkt_dev) { | |
25a8b254 | 3634 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3635 | return -EBUSY; |
3636 | } | |
d50a6b56 | 3637 | |
3291b9db | 3638 | pkt_dev = kzalloc_node(sizeof(struct pktgen_dev), GFP_KERNEL, node); |
d50a6b56 SH |
3639 | if (!pkt_dev) |
3640 | return -ENOMEM; | |
3641 | ||
593f63b0 | 3642 | strcpy(pkt_dev->odevname, ifname); |
3291b9db ED |
3643 | pkt_dev->flows = vmalloc_node(MAX_CFLOWS * sizeof(struct flow_state), |
3644 | node); | |
d50a6b56 SH |
3645 | if (pkt_dev->flows == NULL) { |
3646 | kfree(pkt_dev); | |
3647 | return -ENOMEM; | |
3648 | } | |
222f1806 | 3649 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3650 | |
95ed63f7 | 3651 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3652 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3653 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3654 | pkt_dev->nfrags = 0; | |
3655 | pkt_dev->clone_skb = pg_clone_skb_d; | |
fd29cf72 | 3656 | pkt_dev->delay = pg_delay_d; |
d50a6b56 SH |
3657 | pkt_dev->count = pg_count_d; |
3658 | pkt_dev->sofar = 0; | |
222f1806 | 3659 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3660 | pkt_dev->udp_src_max = 9; |
3661 | pkt_dev->udp_dst_min = 9; | |
3662 | pkt_dev->udp_dst_max = 9; | |
3663 | ||
34954ddc FF |
3664 | pkt_dev->vlan_p = 0; |
3665 | pkt_dev->vlan_cfi = 0; | |
3666 | pkt_dev->vlan_id = 0xffff; | |
3667 | pkt_dev->svlan_p = 0; | |
3668 | pkt_dev->svlan_cfi = 0; | |
3669 | pkt_dev->svlan_id = 0xffff; | |
3670 | ||
39df232f SH |
3671 | err = pktgen_setup_dev(pkt_dev, ifname); |
3672 | if (err) | |
3673 | goto out1; | |
d50a6b56 | 3674 | |
5efdccbc DL |
3675 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3676 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3677 | if (!pkt_dev->entry) { |
25a8b254 | 3678 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3679 | PG_PROC_DIR, ifname); |
39df232f SH |
3680 | err = -EINVAL; |
3681 | goto out2; | |
d50a6b56 | 3682 | } |
a553e4a6 JHS |
3683 | #ifdef CONFIG_XFRM |
3684 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3685 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3686 | #endif | |
d50a6b56 SH |
3687 | |
3688 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3689 | out2: |
3690 | dev_put(pkt_dev->odev); | |
3691 | out1: | |
a553e4a6 JHS |
3692 | #ifdef CONFIG_XFRM |
3693 | free_SAs(pkt_dev); | |
3694 | #endif | |
1d0ebfe7 | 3695 | vfree(pkt_dev->flows); |
39df232f SH |
3696 | kfree(pkt_dev); |
3697 | return err; | |
1da177e4 LT |
3698 | } |
3699 | ||
ee74baa7 | 3700 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3701 | { |
cdcdbe0b | 3702 | struct pktgen_thread *t; |
d50a6b56 | 3703 | struct proc_dir_entry *pe; |
ee74baa7 | 3704 | struct task_struct *p; |
222f1806 | 3705 | |
3291b9db ED |
3706 | t = kzalloc_node(sizeof(struct pktgen_thread), GFP_KERNEL, |
3707 | cpu_to_node(cpu)); | |
222f1806 | 3708 | if (!t) { |
25a8b254 DM |
3709 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3710 | "create new thread.\n"); | |
222f1806 LC |
3711 | return -ENOMEM; |
3712 | } | |
3713 | ||
222f1806 | 3714 | spin_lock_init(&t->if_lock); |
1da177e4 | 3715 | t->cpu = cpu; |
222f1806 | 3716 | |
ee74baa7 DM |
3717 | INIT_LIST_HEAD(&t->if_list); |
3718 | ||
3719 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3720 | init_completion(&t->start_done); |
ee74baa7 DM |
3721 | |
3722 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3723 | if (IS_ERR(p)) { | |
25a8b254 DM |
3724 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3725 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3726 | list_del(&t->th_list); |
3727 | kfree(t); | |
3728 | return PTR_ERR(p); | |
3729 | } | |
3730 | kthread_bind(p, cpu); | |
3731 | t->tsk = p; | |
3732 | ||
5efdccbc DL |
3733 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3734 | &pktgen_thread_fops, t); | |
222f1806 | 3735 | if (!pe) { |
25a8b254 | 3736 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3737 | PG_PROC_DIR, t->tsk->comm); |
3738 | kthread_stop(p); | |
3739 | list_del(&t->th_list); | |
222f1806 LC |
3740 | kfree(t); |
3741 | return -EINVAL; | |
3742 | } | |
d50a6b56 | 3743 | |
ee74baa7 | 3744 | wake_up_process(p); |
d3ede327 | 3745 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3746 | |
3747 | return 0; | |
3748 | } | |
3749 | ||
4ec93edb YH |
3750 | /* |
3751 | * Removes a device from the thread if_list. | |
1da177e4 | 3752 | */ |
222f1806 LC |
3753 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3754 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3755 | { |
c26a8016 LC |
3756 | struct list_head *q, *n; |
3757 | struct pktgen_dev *p; | |
1da177e4 | 3758 | |
c26a8016 LC |
3759 | list_for_each_safe(q, n, &t->if_list) { |
3760 | p = list_entry(q, struct pktgen_dev, list); | |
3761 | if (p == pkt_dev) | |
3762 | list_del(&p->list); | |
1da177e4 LT |
3763 | } |
3764 | } | |
3765 | ||
222f1806 LC |
3766 | static int pktgen_remove_device(struct pktgen_thread *t, |
3767 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3768 | { |
3769 | ||
25c4e53a | 3770 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3771 | |
222f1806 | 3772 | if (pkt_dev->running) { |
25a8b254 DM |
3773 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3774 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3775 | pktgen_stop_device(pkt_dev); |
3776 | } | |
3777 | ||
3778 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3779 | |
3780 | if (pkt_dev->odev) { | |
3781 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3782 | pkt_dev->odev = NULL; |
3783 | } | |
3784 | ||
1da177e4 LT |
3785 | /* And update the thread if_list */ |
3786 | ||
3787 | _rem_dev_from_if_list(t, pkt_dev); | |
3788 | ||
39df232f SH |
3789 | if (pkt_dev->entry) |
3790 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3791 | |
a553e4a6 JHS |
3792 | #ifdef CONFIG_XFRM |
3793 | free_SAs(pkt_dev); | |
3794 | #endif | |
1d0ebfe7 | 3795 | vfree(pkt_dev->flows); |
1da177e4 | 3796 | kfree(pkt_dev); |
222f1806 | 3797 | return 0; |
1da177e4 LT |
3798 | } |
3799 | ||
222f1806 | 3800 | static int __init pg_init(void) |
1da177e4 LT |
3801 | { |
3802 | int cpu; | |
d50a6b56 | 3803 | struct proc_dir_entry *pe; |
1da177e4 | 3804 | |
25a8b254 | 3805 | printk(KERN_INFO "%s", version); |
1da177e4 | 3806 | |
457c4cbc | 3807 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3808 | if (!pg_proc_dir) |
3809 | return -ENODEV; | |
1da177e4 | 3810 | |
25296d59 | 3811 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3812 | if (pe == NULL) { |
25a8b254 DM |
3813 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3814 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3815 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3816 | return -EINVAL; |
3817 | } | |
1da177e4 | 3818 | |
1da177e4 LT |
3819 | /* Register us to receive netdevice events */ |
3820 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3821 | |
670c02c2 | 3822 | for_each_online_cpu(cpu) { |
8024bb24 | 3823 | int err; |
1da177e4 | 3824 | |
ee74baa7 | 3825 | err = pktgen_create_thread(cpu); |
8024bb24 | 3826 | if (err) |
25a8b254 DM |
3827 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3828 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3829 | } |
8024bb24 LC |
3830 | |
3831 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3832 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3833 | "all threads\n"); | |
8024bb24 LC |
3834 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3835 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3836 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3837 | return -ENODEV; |
3838 | } | |
3839 | ||
222f1806 | 3840 | return 0; |
1da177e4 LT |
3841 | } |
3842 | ||
3843 | static void __exit pg_cleanup(void) | |
3844 | { | |
cdcdbe0b LC |
3845 | struct pktgen_thread *t; |
3846 | struct list_head *q, *n; | |
1da177e4 LT |
3847 | wait_queue_head_t queue; |
3848 | init_waitqueue_head(&queue); | |
3849 | ||
222f1806 | 3850 | /* Stop all interfaces & threads */ |
1da177e4 | 3851 | |
cdcdbe0b LC |
3852 | list_for_each_safe(q, n, &pktgen_threads) { |
3853 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3854 | kthread_stop(t->tsk); |
3855 | kfree(t); | |
222f1806 | 3856 | } |
1da177e4 | 3857 | |
222f1806 | 3858 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3859 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3860 | ||
222f1806 | 3861 | /* Clean up proc file system */ |
d50a6b56 | 3862 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3863 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3864 | } |
3865 | ||
1da177e4 LT |
3866 | module_init(pg_init); |
3867 | module_exit(pg_cleanup); | |
3868 | ||
c3d2f52d | 3869 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se>"); |
1da177e4 LT |
3870 | MODULE_DESCRIPTION("Packet Generator tool"); |
3871 | MODULE_LICENSE("GPL"); | |
c3d2f52d | 3872 | MODULE_VERSION(VERSION); |
1da177e4 | 3873 | module_param(pg_count_d, int, 0); |
c3d2f52d | 3874 | MODULE_PARM_DESC(pg_count_d, "Default number of packets to inject"); |
1da177e4 | 3875 | module_param(pg_delay_d, int, 0); |
c3d2f52d | 3876 | MODULE_PARM_DESC(pg_delay_d, "Default delay between packets (nanoseconds)"); |
1da177e4 | 3877 | module_param(pg_clone_skb_d, int, 0); |
c3d2f52d | 3878 | MODULE_PARM_DESC(pg_clone_skb_d, "Default number of copies of the same packet"); |
1da177e4 | 3879 | module_param(debug, int, 0); |
c3d2f52d | 3880 | MODULE_PARM_DESC(debug, "Enable debugging of pktgen module"); |