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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> |
09fe3ef4 | 134 | #include <linux/freezer.h> |
1da177e4 LT |
135 | #include <linux/delay.h> |
136 | #include <linux/timer.h> | |
cdcdbe0b | 137 | #include <linux/list.h> |
1da177e4 LT |
138 | #include <linux/init.h> |
139 | #include <linux/skbuff.h> | |
140 | #include <linux/netdevice.h> | |
141 | #include <linux/inet.h> | |
142 | #include <linux/inetdevice.h> | |
143 | #include <linux/rtnetlink.h> | |
144 | #include <linux/if_arp.h> | |
34954ddc | 145 | #include <linux/if_vlan.h> |
1da177e4 LT |
146 | #include <linux/in.h> |
147 | #include <linux/ip.h> | |
148 | #include <linux/ipv6.h> | |
149 | #include <linux/udp.h> | |
150 | #include <linux/proc_fs.h> | |
d50a6b56 | 151 | #include <linux/seq_file.h> |
1da177e4 | 152 | #include <linux/wait.h> |
f404e9a6 | 153 | #include <linux/etherdevice.h> |
ee74baa7 | 154 | #include <linux/kthread.h> |
457c4cbc | 155 | #include <net/net_namespace.h> |
1da177e4 LT |
156 | #include <net/checksum.h> |
157 | #include <net/ipv6.h> | |
158 | #include <net/addrconf.h> | |
a553e4a6 JHS |
159 | #ifdef CONFIG_XFRM |
160 | #include <net/xfrm.h> | |
161 | #endif | |
1da177e4 LT |
162 | #include <asm/byteorder.h> |
163 | #include <linux/rcupdate.h> | |
1977f032 | 164 | #include <linux/bitops.h> |
1da177e4 LT |
165 | #include <asm/io.h> |
166 | #include <asm/dma.h> | |
167 | #include <asm/uaccess.h> | |
222f1806 | 168 | #include <asm/div64.h> /* do_div */ |
1da177e4 LT |
169 | #include <asm/timex.h> |
170 | ||
b163911f | 171 | #define VERSION "pktgen v2.69: Packet Generator for packet performance testing.\n" |
1da177e4 | 172 | |
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 */ |
1da177e4 LT |
192 | |
193 | /* Thread control flag bits */ | |
222f1806 LC |
194 | #define T_TERMINATE (1<<0) |
195 | #define T_STOP (1<<1) /* Stop run */ | |
196 | #define T_RUN (1<<2) /* Start run */ | |
197 | #define T_REMDEVALL (1<<3) /* Remove all devs */ | |
198 | #define T_REMDEV (1<<4) /* 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" | |
208 | static struct proc_dir_entry *pg_proc_dir = NULL; | |
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 */ | |
c26a8016 | 233 | struct list_head list; /* Used for chaining in the thread's run-queue */ |
1da177e4 | 234 | |
222f1806 | 235 | int running; /* if this changes to 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 LC |
247 | int nfrags; |
248 | __u32 delay_us; /* Default delay */ | |
249 | __u32 delay_ns; | |
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 */ | |
253 | __u64 errors; /* Errors when trying to transmit, pkts will be re-sent */ | |
254 | ||
255 | /* runtime counters relating to clone_skb */ | |
256 | __u64 next_tx_us; /* timestamp of when to tx next */ | |
257 | __u32 next_tx_ns; | |
258 | ||
259 | __u64 allocated_skbs; | |
260 | __u32 clone_count; | |
261 | int last_ok; /* Was last skb sent? | |
262 | * Or a failed transmit of some sort? This will keep | |
263 | * sequence numbers in order, for example. | |
264 | */ | |
265 | __u64 started_at; /* micro-seconds */ | |
266 | __u64 stopped_at; /* micro-seconds */ | |
267 | __u64 idle_acc; /* micro-seconds */ | |
268 | __u32 seq_num; | |
269 | ||
270 | int clone_skb; /* Use multiple SKBs during packet gen. If this number | |
271 | * is greater than 1, then that many copies of the same | |
272 | * packet will be sent before a new packet is allocated. | |
273 | * For instance, if you want to send 1024 identical packets | |
274 | * before creating a new packet, set clone_skb to 1024. | |
275 | */ | |
276 | ||
277 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
278 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
279 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
280 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
281 | ||
282 | struct in6_addr in6_saddr; | |
283 | struct in6_addr in6_daddr; | |
284 | struct in6_addr cur_in6_daddr; | |
285 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 286 | /* For ranges */ |
222f1806 LC |
287 | struct in6_addr min_in6_daddr; |
288 | struct in6_addr max_in6_daddr; | |
289 | struct in6_addr min_in6_saddr; | |
290 | struct in6_addr max_in6_saddr; | |
291 | ||
292 | /* If we're doing ranges, random or incremental, then this | |
293 | * defines the min/max for those ranges. | |
294 | */ | |
252e3346 AV |
295 | __be32 saddr_min; /* inclusive, source IP address */ |
296 | __be32 saddr_max; /* exclusive, source IP address */ | |
297 | __be32 daddr_min; /* inclusive, dest IP address */ | |
298 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
299 | |
300 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
301 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
302 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
303 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
304 | ||
1ca7768c FF |
305 | /* DSCP + ECN */ |
306 | __u8 tos; /* six most significant bits of (former) IPv4 TOS are for dscp codepoint */ | |
307 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 (see RFC 3260, sec. 4) */ | |
308 | ||
ca6549af SW |
309 | /* MPLS */ |
310 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
311 | __be32 labels[MAX_MPLS_LABELS]; | |
312 | ||
34954ddc FF |
313 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
314 | __u8 vlan_p; | |
315 | __u8 vlan_cfi; | |
316 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
317 | ||
318 | __u8 svlan_p; | |
319 | __u8 svlan_cfi; | |
320 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
321 | ||
222f1806 LC |
322 | __u32 src_mac_count; /* How many MACs to iterate through */ |
323 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
324 | ||
325 | unsigned char dst_mac[ETH_ALEN]; | |
326 | unsigned char src_mac[ETH_ALEN]; | |
327 | ||
328 | __u32 cur_dst_mac_offset; | |
329 | __u32 cur_src_mac_offset; | |
252e3346 AV |
330 | __be32 cur_saddr; |
331 | __be32 cur_daddr; | |
222f1806 LC |
332 | __u16 cur_udp_dst; |
333 | __u16 cur_udp_src; | |
45b270f8 | 334 | __u16 cur_queue_map; |
222f1806 LC |
335 | __u32 cur_pkt_size; |
336 | ||
337 | __u8 hh[14]; | |
338 | /* = { | |
339 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
340 | ||
341 | We fill in SRC address later | |
342 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
343 | 0x08, 0x00 | |
344 | }; | |
345 | */ | |
346 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
347 | ||
348 | struct sk_buff *skb; /* skb we are to transmit next, mainly used for when we | |
349 | * are transmitting the same one multiple times | |
350 | */ | |
351 | struct net_device *odev; /* The out-going device. Note that the device should | |
352 | * have it's pg_info pointer pointing back to this | |
353 | * device. This will be set when the user specifies | |
354 | * the out-going device name (not when the inject is | |
355 | * started as it used to do.) | |
356 | */ | |
1da177e4 | 357 | struct flow_state *flows; |
222f1806 LC |
358 | unsigned cflows; /* Concurrent flows (config) */ |
359 | unsigned lflow; /* Flow length (config) */ | |
360 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 361 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
362 | |
363 | u16 queue_map_min; | |
364 | u16 queue_map_max; | |
365 | ||
a553e4a6 JHS |
366 | #ifdef CONFIG_XFRM |
367 | __u8 ipsmode; /* IPSEC mode (config) */ | |
368 | __u8 ipsproto; /* IPSEC type (config) */ | |
369 | #endif | |
39df232f | 370 | char result[512]; |
1da177e4 LT |
371 | }; |
372 | ||
373 | struct pktgen_hdr { | |
252e3346 AV |
374 | __be32 pgh_magic; |
375 | __be32 seq_num; | |
376 | __be32 tv_sec; | |
377 | __be32 tv_usec; | |
1da177e4 LT |
378 | }; |
379 | ||
380 | struct pktgen_thread { | |
222f1806 | 381 | spinlock_t if_lock; |
c26a8016 | 382 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 383 | struct list_head th_list; |
ee74baa7 | 384 | struct task_struct *tsk; |
222f1806 | 385 | char result[512]; |
222f1806 LC |
386 | |
387 | /* Field for thread to receive "posted" events terminate, stop ifs etc. */ | |
388 | ||
389 | u32 control; | |
1da177e4 LT |
390 | int cpu; |
391 | ||
222f1806 | 392 | wait_queue_head_t queue; |
1da177e4 LT |
393 | }; |
394 | ||
395 | #define REMOVE 1 | |
396 | #define FIND 0 | |
397 | ||
1da177e4 | 398 | /** Convert to micro-seconds */ |
222f1806 | 399 | static inline __u64 tv_to_us(const struct timeval *tv) |
1da177e4 | 400 | { |
222f1806 LC |
401 | __u64 us = tv->tv_usec; |
402 | us += (__u64) tv->tv_sec * (__u64) 1000000; | |
403 | return us; | |
1da177e4 LT |
404 | } |
405 | ||
6db105db | 406 | static __u64 getCurUs(void) |
1da177e4 | 407 | { |
222f1806 LC |
408 | struct timeval tv; |
409 | do_gettimeofday(&tv); | |
410 | return tv_to_us(&tv); | |
1da177e4 LT |
411 | } |
412 | ||
1da177e4 LT |
413 | /* old include end */ |
414 | ||
415 | static char version[] __initdata = VERSION; | |
416 | ||
222f1806 LC |
417 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
418 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
419 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
420 | const char *ifname); | |
1da177e4 LT |
421 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
422 | static void pktgen_run_all_threads(void); | |
423 | static void pktgen_stop_all_threads_ifs(void); | |
424 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev); | |
222f1806 | 425 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 426 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 427 | |
222f1806 LC |
428 | static unsigned int scan_ip6(const char *s, char ip[16]); |
429 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
430 | |
431 | /* Module parameters, defaults. */ | |
222f1806 | 432 | static int pg_count_d = 1000; /* 1000 pkts by default */ |
f34fbb97 JK |
433 | static int pg_delay_d; |
434 | static int pg_clone_skb_d; | |
435 | static int debug; | |
1da177e4 | 436 | |
222fa076 | 437 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 438 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 439 | |
1da177e4 LT |
440 | static struct notifier_block pktgen_notifier_block = { |
441 | .notifier_call = pktgen_device_event, | |
442 | }; | |
443 | ||
1da177e4 | 444 | /* |
4ec93edb | 445 | * /proc handling functions |
1da177e4 LT |
446 | * |
447 | */ | |
448 | ||
d50a6b56 | 449 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 450 | { |
d50a6b56 SH |
451 | seq_puts(seq, VERSION); |
452 | return 0; | |
1da177e4 LT |
453 | } |
454 | ||
222f1806 LC |
455 | static ssize_t pgctrl_write(struct file *file, const char __user * buf, |
456 | size_t count, loff_t * ppos) | |
1da177e4 | 457 | { |
1da177e4 | 458 | int err = 0; |
d50a6b56 | 459 | char data[128]; |
1da177e4 | 460 | |
222f1806 LC |
461 | if (!capable(CAP_NET_ADMIN)) { |
462 | err = -EPERM; | |
1da177e4 | 463 | goto out; |
222f1806 | 464 | } |
1da177e4 | 465 | |
d50a6b56 SH |
466 | if (count > sizeof(data)) |
467 | count = sizeof(data); | |
1da177e4 | 468 | |
1da177e4 | 469 | if (copy_from_user(data, buf, count)) { |
b4099fab | 470 | err = -EFAULT; |
d50a6b56 | 471 | goto out; |
222f1806 LC |
472 | } |
473 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 474 | |
222f1806 | 475 | if (!strcmp(data, "stop")) |
1da177e4 LT |
476 | pktgen_stop_all_threads_ifs(); |
477 | ||
222f1806 | 478 | else if (!strcmp(data, "start")) |
1da177e4 LT |
479 | pktgen_run_all_threads(); |
480 | ||
222f1806 | 481 | else |
25a8b254 | 482 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
483 | |
484 | err = count; | |
485 | ||
222f1806 LC |
486 | out: |
487 | return err; | |
1da177e4 LT |
488 | } |
489 | ||
d50a6b56 SH |
490 | static int pgctrl_open(struct inode *inode, struct file *file) |
491 | { | |
492 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
493 | } | |
494 | ||
9a32144e | 495 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
496 | .owner = THIS_MODULE, |
497 | .open = pgctrl_open, | |
498 | .read = seq_read, | |
499 | .llseek = seq_lseek, | |
500 | .write = pgctrl_write, | |
501 | .release = single_release, | |
d50a6b56 SH |
502 | }; |
503 | ||
504 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 505 | { |
222f1806 LC |
506 | struct pktgen_dev *pkt_dev = seq->private; |
507 | __u64 sa; | |
508 | __u64 stopped; | |
509 | __u64 now = getCurUs(); | |
0795af57 | 510 | DECLARE_MAC_BUF(mac); |
222f1806 LC |
511 | |
512 | seq_printf(seq, | |
513 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
514 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
515 | pkt_dev->max_pkt_size); | |
516 | ||
517 | seq_printf(seq, | |
518 | " frags: %d delay: %u clone_skb: %d ifname: %s\n", | |
519 | pkt_dev->nfrags, | |
520 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns, | |
39df232f | 521 | pkt_dev->clone_skb, pkt_dev->odev->name); |
222f1806 LC |
522 | |
523 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
524 | pkt_dev->lflow); | |
525 | ||
45b270f8 RO |
526 | seq_printf(seq, |
527 | " queue_map_min: %u queue_map_max: %u\n", | |
528 | pkt_dev->queue_map_min, | |
529 | pkt_dev->queue_map_max); | |
530 | ||
222f1806 LC |
531 | if (pkt_dev->flags & F_IPV6) { |
532 | char b1[128], b2[128], b3[128]; | |
533 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
534 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
535 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
536 | seq_printf(seq, | |
537 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
538 | b2, b3); | |
539 | ||
540 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
541 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
542 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
543 | seq_printf(seq, | |
544 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
545 | b2, b3); | |
546 | ||
547 | } else | |
548 | seq_printf(seq, | |
549 | " dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n", | |
550 | pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min, | |
551 | pkt_dev->src_max); | |
1da177e4 | 552 | |
222f1806 | 553 | seq_puts(seq, " src_mac: "); |
1da177e4 | 554 | |
0795af57 JP |
555 | seq_printf(seq, "%s ", |
556 | print_mac(mac, is_zero_ether_addr(pkt_dev->src_mac) ? | |
557 | pkt_dev->odev->dev_addr : pkt_dev->src_mac)); | |
222f1806 LC |
558 | |
559 | seq_printf(seq, "dst_mac: "); | |
0795af57 | 560 | seq_printf(seq, "%s\n", print_mac(mac, pkt_dev->dst_mac)); |
222f1806 LC |
561 | |
562 | seq_printf(seq, | |
563 | " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n", | |
564 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, | |
565 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
566 | ||
567 | seq_printf(seq, | |
ca6549af | 568 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 569 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 570 | |
ca6549af SW |
571 | if (pkt_dev->nr_labels) { |
572 | unsigned i; | |
573 | seq_printf(seq, " mpls: "); | |
e71a4783 | 574 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
575 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
576 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
577 | } | |
578 | ||
34954ddc FF |
579 | if (pkt_dev->vlan_id != 0xffff) { |
580 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
581 | pkt_dev->vlan_id, pkt_dev->vlan_p, pkt_dev->vlan_cfi); | |
582 | } | |
583 | ||
584 | if (pkt_dev->svlan_id != 0xffff) { | |
585 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
586 | pkt_dev->svlan_id, pkt_dev->svlan_p, pkt_dev->svlan_cfi); | |
587 | } | |
588 | ||
1ca7768c FF |
589 | if (pkt_dev->tos) { |
590 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); | |
591 | } | |
592 | ||
593 | if (pkt_dev->traffic_class) { | |
594 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); | |
595 | } | |
596 | ||
ca6549af SW |
597 | seq_printf(seq, " Flags: "); |
598 | ||
222f1806 LC |
599 | if (pkt_dev->flags & F_IPV6) |
600 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 601 | |
222f1806 LC |
602 | if (pkt_dev->flags & F_IPSRC_RND) |
603 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 604 | |
222f1806 LC |
605 | if (pkt_dev->flags & F_IPDST_RND) |
606 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 607 | |
222f1806 LC |
608 | if (pkt_dev->flags & F_TXSIZE_RND) |
609 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 610 | |
222f1806 LC |
611 | if (pkt_dev->flags & F_UDPSRC_RND) |
612 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 613 | |
222f1806 LC |
614 | if (pkt_dev->flags & F_UDPDST_RND) |
615 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 616 | |
ca6549af SW |
617 | if (pkt_dev->flags & F_MPLS_RND) |
618 | seq_printf(seq, "MPLS_RND "); | |
619 | ||
45b270f8 RO |
620 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
621 | seq_printf(seq, "QUEUE_MAP_RND "); | |
622 | ||
007a531b JHS |
623 | if (pkt_dev->cflows) { |
624 | if (pkt_dev->flags & F_FLOW_SEQ) | |
625 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
626 | else | |
627 | seq_printf(seq, "FLOW_RND "); | |
628 | } | |
629 | ||
a553e4a6 JHS |
630 | #ifdef CONFIG_XFRM |
631 | if (pkt_dev->flags & F_IPSEC_ON) | |
632 | seq_printf(seq, "IPSEC "); | |
633 | #endif | |
634 | ||
222f1806 LC |
635 | if (pkt_dev->flags & F_MACSRC_RND) |
636 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 637 | |
222f1806 LC |
638 | if (pkt_dev->flags & F_MACDST_RND) |
639 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 640 | |
34954ddc FF |
641 | if (pkt_dev->flags & F_VID_RND) |
642 | seq_printf(seq, "VID_RND "); | |
643 | ||
644 | if (pkt_dev->flags & F_SVID_RND) | |
645 | seq_printf(seq, "SVID_RND "); | |
646 | ||
222f1806 LC |
647 | seq_puts(seq, "\n"); |
648 | ||
649 | sa = pkt_dev->started_at; | |
650 | stopped = pkt_dev->stopped_at; | |
651 | if (pkt_dev->running) | |
652 | stopped = now; /* not really stopped, more like last-running-at */ | |
1da177e4 | 653 | |
222f1806 LC |
654 | seq_printf(seq, |
655 | "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n", | |
656 | (unsigned long long)pkt_dev->sofar, | |
657 | (unsigned long long)pkt_dev->errors, (unsigned long long)sa, | |
658 | (unsigned long long)stopped, | |
659 | (unsigned long long)pkt_dev->idle_acc); | |
1da177e4 | 660 | |
222f1806 LC |
661 | seq_printf(seq, |
662 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
663 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
664 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 665 | |
222f1806 | 666 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 667 | char b1[128], b2[128]; |
222f1806 LC |
668 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
669 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
670 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
671 | } else | |
672 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 673 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 674 | |
222f1806 | 675 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 676 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 677 | |
45b270f8 RO |
678 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
679 | ||
222f1806 | 680 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
681 | |
682 | if (pkt_dev->result[0]) | |
222f1806 | 683 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 684 | else |
222f1806 | 685 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 686 | |
d50a6b56 | 687 | return 0; |
1da177e4 LT |
688 | } |
689 | ||
ca6549af | 690 | |
1ca7768c | 691 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, __u32 *num) |
ca6549af SW |
692 | { |
693 | int i = 0; | |
694 | *num = 0; | |
695 | ||
e71a4783 | 696 | for (; i < maxlen; i++) { |
ca6549af SW |
697 | char c; |
698 | *num <<= 4; | |
699 | if (get_user(c, &user_buffer[i])) | |
700 | return -EFAULT; | |
701 | if ((c >= '0') && (c <= '9')) | |
702 | *num |= c - '0'; | |
703 | else if ((c >= 'a') && (c <= 'f')) | |
704 | *num |= c - 'a' + 10; | |
705 | else if ((c >= 'A') && (c <= 'F')) | |
706 | *num |= c - 'A' + 10; | |
707 | else | |
708 | break; | |
709 | } | |
710 | return i; | |
711 | } | |
712 | ||
222f1806 LC |
713 | static int count_trail_chars(const char __user * user_buffer, |
714 | unsigned int maxlen) | |
1da177e4 LT |
715 | { |
716 | int i; | |
717 | ||
718 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
719 | char c; |
720 | if (get_user(c, &user_buffer[i])) | |
721 | return -EFAULT; | |
722 | switch (c) { | |
1da177e4 LT |
723 | case '\"': |
724 | case '\n': | |
725 | case '\r': | |
726 | case '\t': | |
727 | case ' ': | |
728 | case '=': | |
729 | break; | |
730 | default: | |
731 | goto done; | |
3ff50b79 | 732 | } |
1da177e4 LT |
733 | } |
734 | done: | |
735 | return i; | |
736 | } | |
737 | ||
222f1806 LC |
738 | static unsigned long num_arg(const char __user * user_buffer, |
739 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
740 | { |
741 | int i = 0; | |
742 | *num = 0; | |
222f1806 LC |
743 | |
744 | for (; i < maxlen; i++) { | |
745 | char c; | |
746 | if (get_user(c, &user_buffer[i])) | |
747 | return -EFAULT; | |
748 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 749 | *num *= 10; |
222f1806 | 750 | *num += c - '0'; |
1da177e4 LT |
751 | } else |
752 | break; | |
753 | } | |
754 | return i; | |
755 | } | |
756 | ||
222f1806 | 757 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
758 | { |
759 | int i = 0; | |
760 | ||
222f1806 LC |
761 | for (; i < maxlen; i++) { |
762 | char c; | |
763 | if (get_user(c, &user_buffer[i])) | |
764 | return -EFAULT; | |
765 | switch (c) { | |
1da177e4 LT |
766 | case '\"': |
767 | case '\n': | |
768 | case '\r': | |
769 | case '\t': | |
770 | case ' ': | |
771 | goto done_str; | |
772 | break; | |
773 | default: | |
774 | break; | |
3ff50b79 | 775 | } |
1da177e4 LT |
776 | } |
777 | done_str: | |
1da177e4 LT |
778 | return i; |
779 | } | |
780 | ||
ca6549af SW |
781 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
782 | { | |
783 | unsigned n = 0; | |
784 | char c; | |
785 | ssize_t i = 0; | |
786 | int len; | |
787 | ||
788 | pkt_dev->nr_labels = 0; | |
789 | do { | |
790 | __u32 tmp; | |
1ca7768c | 791 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
792 | if (len <= 0) |
793 | return len; | |
794 | pkt_dev->labels[n] = htonl(tmp); | |
795 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
796 | pkt_dev->flags |= F_MPLS_RND; | |
797 | i += len; | |
798 | if (get_user(c, &buffer[i])) | |
799 | return -EFAULT; | |
800 | i++; | |
801 | n++; | |
802 | if (n >= MAX_MPLS_LABELS) | |
803 | return -E2BIG; | |
e71a4783 | 804 | } while (c == ','); |
ca6549af SW |
805 | |
806 | pkt_dev->nr_labels = n; | |
807 | return i; | |
808 | } | |
809 | ||
222f1806 LC |
810 | static ssize_t pktgen_if_write(struct file *file, |
811 | const char __user * user_buffer, size_t count, | |
812 | loff_t * offset) | |
1da177e4 | 813 | { |
222f1806 LC |
814 | struct seq_file *seq = (struct seq_file *)file->private_data; |
815 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
816 | int i = 0, max, len; |
817 | char name[16], valstr[32]; | |
818 | unsigned long value = 0; | |
222f1806 LC |
819 | char *pg_result = NULL; |
820 | int tmp = 0; | |
1da177e4 | 821 | char buf[128]; |
222f1806 LC |
822 | |
823 | pg_result = &(pkt_dev->result[0]); | |
824 | ||
1da177e4 | 825 | if (count < 1) { |
25a8b254 | 826 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
827 | return -EINVAL; |
828 | } | |
222f1806 | 829 | |
1da177e4 LT |
830 | max = count - i; |
831 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 832 | if (tmp < 0) { |
25a8b254 | 833 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 834 | return tmp; |
1da177e4 | 835 | } |
222f1806 LC |
836 | i += tmp; |
837 | ||
1da177e4 LT |
838 | /* Read variable name */ |
839 | ||
840 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 LC |
841 | if (len < 0) { |
842 | return len; | |
843 | } | |
1da177e4 | 844 | memset(name, 0, sizeof(name)); |
222f1806 | 845 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
846 | return -EFAULT; |
847 | i += len; | |
222f1806 LC |
848 | |
849 | max = count - i; | |
1da177e4 | 850 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
851 | if (len < 0) |
852 | return len; | |
853 | ||
1da177e4 LT |
854 | i += len; |
855 | ||
856 | if (debug) { | |
222f1806 LC |
857 | char tb[count + 1]; |
858 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 859 | return -EFAULT; |
222f1806 | 860 | tb[count] = 0; |
25a8b254 | 861 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
862 | (unsigned long)count, tb); |
863 | } | |
1da177e4 LT |
864 | |
865 | if (!strcmp(name, "min_pkt_size")) { | |
866 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
867 | if (len < 0) { |
868 | return len; | |
869 | } | |
1da177e4 | 870 | i += len; |
222f1806 LC |
871 | if (value < 14 + 20 + 8) |
872 | value = 14 + 20 + 8; | |
873 | if (value != pkt_dev->min_pkt_size) { | |
874 | pkt_dev->min_pkt_size = value; | |
875 | pkt_dev->cur_pkt_size = value; | |
876 | } | |
877 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
878 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
879 | return count; |
880 | } | |
881 | ||
222f1806 | 882 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 883 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
884 | if (len < 0) { |
885 | return len; | |
886 | } | |
1da177e4 | 887 | i += len; |
222f1806 LC |
888 | if (value < 14 + 20 + 8) |
889 | value = 14 + 20 + 8; | |
890 | if (value != pkt_dev->max_pkt_size) { | |
891 | pkt_dev->max_pkt_size = value; | |
892 | pkt_dev->cur_pkt_size = value; | |
893 | } | |
894 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
895 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
896 | return count; |
897 | } | |
898 | ||
222f1806 | 899 | /* Shortcut for min = max */ |
1da177e4 LT |
900 | |
901 | if (!strcmp(name, "pkt_size")) { | |
902 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
903 | if (len < 0) { |
904 | return len; | |
905 | } | |
1da177e4 | 906 | i += len; |
222f1806 LC |
907 | if (value < 14 + 20 + 8) |
908 | value = 14 + 20 + 8; | |
909 | if (value != pkt_dev->min_pkt_size) { | |
910 | pkt_dev->min_pkt_size = value; | |
911 | pkt_dev->max_pkt_size = value; | |
912 | pkt_dev->cur_pkt_size = value; | |
913 | } | |
1da177e4 LT |
914 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
915 | return count; | |
916 | } | |
917 | ||
222f1806 | 918 | if (!strcmp(name, "debug")) { |
1da177e4 | 919 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
920 | if (len < 0) { |
921 | return len; | |
922 | } | |
1da177e4 | 923 | i += len; |
222f1806 | 924 | debug = value; |
1da177e4 LT |
925 | sprintf(pg_result, "OK: debug=%u", debug); |
926 | return count; | |
927 | } | |
928 | ||
222f1806 | 929 | if (!strcmp(name, "frags")) { |
1da177e4 | 930 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
931 | if (len < 0) { |
932 | return len; | |
933 | } | |
1da177e4 LT |
934 | i += len; |
935 | pkt_dev->nfrags = value; | |
936 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
937 | return count; | |
938 | } | |
939 | if (!strcmp(name, "delay")) { | |
940 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
941 | if (len < 0) { |
942 | return len; | |
943 | } | |
1da177e4 LT |
944 | i += len; |
945 | if (value == 0x7FFFFFFF) { | |
946 | pkt_dev->delay_us = 0x7FFFFFFF; | |
947 | pkt_dev->delay_ns = 0; | |
948 | } else { | |
949 | pkt_dev->delay_us = value / 1000; | |
950 | pkt_dev->delay_ns = value % 1000; | |
951 | } | |
222f1806 LC |
952 | sprintf(pg_result, "OK: delay=%u", |
953 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns); | |
1da177e4 LT |
954 | return count; |
955 | } | |
222f1806 | 956 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 957 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
958 | if (len < 0) { |
959 | return len; | |
960 | } | |
1da177e4 | 961 | i += len; |
222f1806 LC |
962 | if (value != pkt_dev->udp_src_min) { |
963 | pkt_dev->udp_src_min = value; | |
964 | pkt_dev->cur_udp_src = value; | |
965 | } | |
1da177e4 LT |
966 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
967 | return count; | |
968 | } | |
222f1806 | 969 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 970 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
971 | if (len < 0) { |
972 | return len; | |
973 | } | |
1da177e4 | 974 | i += len; |
222f1806 LC |
975 | if (value != pkt_dev->udp_dst_min) { |
976 | pkt_dev->udp_dst_min = value; | |
977 | pkt_dev->cur_udp_dst = value; | |
978 | } | |
1da177e4 LT |
979 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
980 | return count; | |
981 | } | |
222f1806 | 982 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 983 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
984 | if (len < 0) { |
985 | return len; | |
986 | } | |
1da177e4 | 987 | i += len; |
222f1806 LC |
988 | if (value != pkt_dev->udp_src_max) { |
989 | pkt_dev->udp_src_max = value; | |
990 | pkt_dev->cur_udp_src = value; | |
991 | } | |
1da177e4 LT |
992 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
993 | return count; | |
994 | } | |
222f1806 | 995 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 996 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
997 | if (len < 0) { |
998 | return len; | |
999 | } | |
1da177e4 | 1000 | i += len; |
222f1806 LC |
1001 | if (value != pkt_dev->udp_dst_max) { |
1002 | pkt_dev->udp_dst_max = value; | |
1003 | pkt_dev->cur_udp_dst = value; | |
1004 | } | |
1da177e4 LT |
1005 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1006 | return count; | |
1007 | } | |
1008 | if (!strcmp(name, "clone_skb")) { | |
1009 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1010 | if (len < 0) { |
1011 | return len; | |
1012 | } | |
1da177e4 | 1013 | i += len; |
222f1806 LC |
1014 | pkt_dev->clone_skb = value; |
1015 | ||
1da177e4 LT |
1016 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1017 | return count; | |
1018 | } | |
1019 | if (!strcmp(name, "count")) { | |
1020 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1021 | if (len < 0) { |
1022 | return len; | |
1023 | } | |
1da177e4 LT |
1024 | i += len; |
1025 | pkt_dev->count = value; | |
1026 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1027 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1028 | return count; |
1029 | } | |
1030 | if (!strcmp(name, "src_mac_count")) { | |
1031 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1032 | if (len < 0) { |
1033 | return len; | |
1034 | } | |
1da177e4 LT |
1035 | i += len; |
1036 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1037 | pkt_dev->src_mac_count = value; |
1038 | pkt_dev->cur_src_mac_offset = 0; | |
1039 | } | |
1040 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1041 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1042 | return count; |
1043 | } | |
1044 | if (!strcmp(name, "dst_mac_count")) { | |
1045 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1046 | if (len < 0) { |
1047 | return len; | |
1048 | } | |
1da177e4 LT |
1049 | i += len; |
1050 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1051 | pkt_dev->dst_mac_count = value; |
1052 | pkt_dev->cur_dst_mac_offset = 0; | |
1053 | } | |
1054 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1055 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1056 | return count; |
1057 | } | |
1058 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1059 | char f[32]; |
1060 | memset(f, 0, 32); | |
1da177e4 | 1061 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1062 | if (len < 0) { |
1063 | return len; | |
1064 | } | |
1da177e4 LT |
1065 | if (copy_from_user(f, &user_buffer[i], len)) |
1066 | return -EFAULT; | |
1067 | i += len; | |
222f1806 LC |
1068 | if (strcmp(f, "IPSRC_RND") == 0) |
1069 | pkt_dev->flags |= F_IPSRC_RND; | |
1070 | ||
1071 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1072 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1073 | ||
1074 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1075 | pkt_dev->flags |= F_TXSIZE_RND; | |
1076 | ||
1077 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1078 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1079 | ||
1080 | else if (strcmp(f, "IPDST_RND") == 0) | |
1081 | pkt_dev->flags |= F_IPDST_RND; | |
1082 | ||
1083 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1084 | pkt_dev->flags &= ~F_IPDST_RND; | |
1085 | ||
1086 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1087 | pkt_dev->flags |= F_UDPSRC_RND; | |
1088 | ||
1089 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1090 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1091 | ||
1092 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1093 | pkt_dev->flags |= F_UDPDST_RND; | |
1094 | ||
1095 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1096 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1097 | ||
1098 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1099 | pkt_dev->flags |= F_MACSRC_RND; | |
1100 | ||
1101 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1102 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1103 | ||
1104 | else if (strcmp(f, "MACDST_RND") == 0) | |
1105 | pkt_dev->flags |= F_MACDST_RND; | |
1106 | ||
1107 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1108 | pkt_dev->flags &= ~F_MACDST_RND; | |
1109 | ||
ca6549af SW |
1110 | else if (strcmp(f, "MPLS_RND") == 0) |
1111 | pkt_dev->flags |= F_MPLS_RND; | |
1112 | ||
1113 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1114 | pkt_dev->flags &= ~F_MPLS_RND; | |
1115 | ||
34954ddc FF |
1116 | else if (strcmp(f, "VID_RND") == 0) |
1117 | pkt_dev->flags |= F_VID_RND; | |
1118 | ||
1119 | else if (strcmp(f, "!VID_RND") == 0) | |
1120 | pkt_dev->flags &= ~F_VID_RND; | |
1121 | ||
1122 | else if (strcmp(f, "SVID_RND") == 0) | |
1123 | pkt_dev->flags |= F_SVID_RND; | |
1124 | ||
1125 | else if (strcmp(f, "!SVID_RND") == 0) | |
1126 | pkt_dev->flags &= ~F_SVID_RND; | |
1127 | ||
007a531b JHS |
1128 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1129 | pkt_dev->flags |= F_FLOW_SEQ; | |
1130 | ||
45b270f8 RO |
1131 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1132 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1133 | ||
1134 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1135 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
a553e4a6 JHS |
1136 | #ifdef CONFIG_XFRM |
1137 | else if (strcmp(f, "IPSEC") == 0) | |
1138 | pkt_dev->flags |= F_IPSEC_ON; | |
1139 | #endif | |
1140 | ||
1ca7768c FF |
1141 | else if (strcmp(f, "!IPV6") == 0) |
1142 | pkt_dev->flags &= ~F_IPV6; | |
1143 | ||
222f1806 LC |
1144 | else { |
1145 | sprintf(pg_result, | |
1146 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1147 | f, | |
1ca7768c | 1148 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1149 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1150 | return count; |
1151 | } | |
1da177e4 LT |
1152 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1153 | return count; | |
1154 | } | |
1155 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1156 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
222f1806 LC |
1157 | if (len < 0) { |
1158 | return len; | |
1159 | } | |
1da177e4 | 1160 | |
222f1806 | 1161 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1162 | return -EFAULT; |
222f1806 LC |
1163 | buf[len] = 0; |
1164 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1165 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1166 | strncpy(pkt_dev->dst_min, buf, len); | |
1167 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1168 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1169 | } | |
1170 | if (debug) | |
25a8b254 | 1171 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1172 | pkt_dev->dst_min); |
1173 | i += len; | |
1da177e4 LT |
1174 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1175 | return count; | |
1176 | } | |
1177 | if (!strcmp(name, "dst_max")) { | |
1178 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
222f1806 LC |
1179 | if (len < 0) { |
1180 | return len; | |
1181 | } | |
1da177e4 | 1182 | |
222f1806 | 1183 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1184 | return -EFAULT; |
1185 | ||
222f1806 LC |
1186 | buf[len] = 0; |
1187 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1188 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1189 | strncpy(pkt_dev->dst_max, buf, len); | |
1190 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1191 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1192 | } | |
1193 | if (debug) | |
25a8b254 | 1194 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1195 | pkt_dev->dst_max); |
1da177e4 LT |
1196 | i += len; |
1197 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1198 | return count; | |
1199 | } | |
1200 | if (!strcmp(name, "dst6")) { | |
1201 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1202 | if (len < 0) |
1203 | return len; | |
1da177e4 LT |
1204 | |
1205 | pkt_dev->flags |= F_IPV6; | |
1206 | ||
222f1806 | 1207 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1208 | return -EFAULT; |
222f1806 | 1209 | buf[len] = 0; |
1da177e4 LT |
1210 | |
1211 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1212 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1213 | |
1214 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1215 | ||
222f1806 | 1216 | if (debug) |
25a8b254 | 1217 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1218 | |
222f1806 | 1219 | i += len; |
1da177e4 LT |
1220 | sprintf(pg_result, "OK: dst6=%s", buf); |
1221 | return count; | |
1222 | } | |
1223 | if (!strcmp(name, "dst6_min")) { | |
1224 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1225 | if (len < 0) |
1226 | return len; | |
1da177e4 LT |
1227 | |
1228 | pkt_dev->flags |= F_IPV6; | |
1229 | ||
222f1806 | 1230 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1231 | return -EFAULT; |
222f1806 | 1232 | buf[len] = 0; |
1da177e4 LT |
1233 | |
1234 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1235 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1236 | |
222f1806 LC |
1237 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1238 | &pkt_dev->min_in6_daddr); | |
1239 | if (debug) | |
25a8b254 | 1240 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1241 | |
222f1806 | 1242 | i += len; |
1da177e4 LT |
1243 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1244 | return count; | |
1245 | } | |
1246 | if (!strcmp(name, "dst6_max")) { | |
1247 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1248 | if (len < 0) |
1249 | return len; | |
1da177e4 LT |
1250 | |
1251 | pkt_dev->flags |= F_IPV6; | |
1252 | ||
222f1806 | 1253 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1254 | return -EFAULT; |
222f1806 | 1255 | buf[len] = 0; |
1da177e4 LT |
1256 | |
1257 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1258 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1259 | |
222f1806 | 1260 | if (debug) |
25a8b254 | 1261 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1262 | |
222f1806 | 1263 | i += len; |
1da177e4 LT |
1264 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1265 | return count; | |
1266 | } | |
1267 | if (!strcmp(name, "src6")) { | |
1268 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1269 | if (len < 0) |
1270 | return len; | |
1da177e4 LT |
1271 | |
1272 | pkt_dev->flags |= F_IPV6; | |
1273 | ||
222f1806 | 1274 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1275 | return -EFAULT; |
222f1806 | 1276 | buf[len] = 0; |
1da177e4 LT |
1277 | |
1278 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1279 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1280 | |
1281 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1282 | ||
222f1806 | 1283 | if (debug) |
25a8b254 | 1284 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1285 | |
1286 | i += len; | |
1da177e4 LT |
1287 | sprintf(pg_result, "OK: src6=%s", buf); |
1288 | return count; | |
1289 | } | |
1290 | if (!strcmp(name, "src_min")) { | |
1291 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
222f1806 LC |
1292 | if (len < 0) { |
1293 | return len; | |
1294 | } | |
1295 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1296 | return -EFAULT; |
222f1806 LC |
1297 | buf[len] = 0; |
1298 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1299 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1300 | strncpy(pkt_dev->src_min, buf, len); | |
1301 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1302 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1303 | } | |
1304 | if (debug) | |
25a8b254 | 1305 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1306 | pkt_dev->src_min); |
1da177e4 LT |
1307 | i += len; |
1308 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1309 | return count; | |
1310 | } | |
1311 | if (!strcmp(name, "src_max")) { | |
1312 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
222f1806 LC |
1313 | if (len < 0) { |
1314 | return len; | |
1315 | } | |
1316 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1317 | return -EFAULT; |
222f1806 LC |
1318 | buf[len] = 0; |
1319 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1320 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1321 | strncpy(pkt_dev->src_max, buf, len); | |
1322 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1323 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1324 | } | |
1325 | if (debug) | |
25a8b254 | 1326 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1327 | pkt_dev->src_max); |
1da177e4 LT |
1328 | i += len; |
1329 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1330 | return count; | |
1331 | } | |
1332 | if (!strcmp(name, "dst_mac")) { | |
1333 | char *v = valstr; | |
f404e9a6 | 1334 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1335 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1336 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1337 | |
1da177e4 | 1338 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1339 | if (len < 0) { |
1340 | return len; | |
1341 | } | |
1da177e4 | 1342 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1343 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1344 | return -EFAULT; |
1345 | i += len; | |
1346 | ||
222f1806 | 1347 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1348 | if (*v >= '0' && *v <= '9') { |
1349 | *m *= 16; | |
1350 | *m += *v - '0'; | |
1351 | } | |
1352 | if (*v >= 'A' && *v <= 'F') { | |
1353 | *m *= 16; | |
1354 | *m += *v - 'A' + 10; | |
1355 | } | |
1356 | if (*v >= 'a' && *v <= 'f') { | |
1357 | *m *= 16; | |
1358 | *m += *v - 'a' + 10; | |
1359 | } | |
1360 | if (*v == ':') { | |
1361 | m++; | |
1362 | *m = 0; | |
1363 | } | |
1364 | } | |
1365 | ||
1366 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1367 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1368 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1369 | |
1da177e4 LT |
1370 | sprintf(pg_result, "OK: dstmac"); |
1371 | return count; | |
1372 | } | |
1373 | if (!strcmp(name, "src_mac")) { | |
1374 | char *v = valstr; | |
ce5d0b47 | 1375 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1376 | unsigned char *m = pkt_dev->src_mac; |
1377 | ||
ce5d0b47 AR |
1378 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1379 | ||
1da177e4 | 1380 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1381 | if (len < 0) { |
1382 | return len; | |
1383 | } | |
1da177e4 | 1384 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1385 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1386 | return -EFAULT; |
1387 | i += len; | |
1388 | ||
222f1806 | 1389 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1390 | if (*v >= '0' && *v <= '9') { |
1391 | *m *= 16; | |
1392 | *m += *v - '0'; | |
1393 | } | |
1394 | if (*v >= 'A' && *v <= 'F') { | |
1395 | *m *= 16; | |
1396 | *m += *v - 'A' + 10; | |
1397 | } | |
1398 | if (*v >= 'a' && *v <= 'f') { | |
1399 | *m *= 16; | |
1400 | *m += *v - 'a' + 10; | |
1401 | } | |
1402 | if (*v == ':') { | |
1403 | m++; | |
1404 | *m = 0; | |
1405 | } | |
222f1806 | 1406 | } |
1da177e4 | 1407 | |
ce5d0b47 AR |
1408 | /* Set up Src MAC */ |
1409 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1410 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1411 | ||
222f1806 | 1412 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1413 | return count; |
1414 | } | |
1415 | ||
222f1806 LC |
1416 | if (!strcmp(name, "clear_counters")) { |
1417 | pktgen_clear_counters(pkt_dev); | |
1418 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1419 | return count; | |
1420 | } | |
1da177e4 LT |
1421 | |
1422 | if (!strcmp(name, "flows")) { | |
1423 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1424 | if (len < 0) { |
1425 | return len; | |
1426 | } | |
1da177e4 LT |
1427 | i += len; |
1428 | if (value > MAX_CFLOWS) | |
1429 | value = MAX_CFLOWS; | |
1430 | ||
1431 | pkt_dev->cflows = value; | |
1432 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1433 | return count; | |
1434 | } | |
1435 | ||
1436 | if (!strcmp(name, "flowlen")) { | |
1437 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1438 | if (len < 0) { |
1439 | return len; | |
1440 | } | |
1da177e4 LT |
1441 | i += len; |
1442 | pkt_dev->lflow = value; | |
1443 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1444 | return count; | |
1445 | } | |
222f1806 | 1446 | |
45b270f8 RO |
1447 | if (!strcmp(name, "queue_map_min")) { |
1448 | len = num_arg(&user_buffer[i], 5, &value); | |
1449 | if (len < 0) { | |
1450 | return len; | |
1451 | } | |
1452 | i += len; | |
1453 | pkt_dev->queue_map_min = value; | |
1454 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1455 | return count; | |
1456 | } | |
1457 | ||
1458 | if (!strcmp(name, "queue_map_max")) { | |
1459 | len = num_arg(&user_buffer[i], 5, &value); | |
1460 | if (len < 0) { | |
1461 | return len; | |
1462 | } | |
1463 | i += len; | |
1464 | pkt_dev->queue_map_max = value; | |
1465 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1466 | return count; | |
1467 | } | |
1468 | ||
ca6549af | 1469 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1470 | unsigned n, cnt; |
1471 | ||
ca6549af | 1472 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1473 | if (len < 0) |
1474 | return len; | |
ca6549af | 1475 | i += len; |
cfcabdcc | 1476 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1477 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1478 | cnt += sprintf(pg_result + cnt, |
1479 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1480 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1481 | |
1482 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1483 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1484 | pkt_dev->svlan_id = 0xffff; | |
1485 | ||
1486 | if (debug) | |
25a8b254 | 1487 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1488 | } |
1489 | return count; | |
1490 | } | |
1491 | ||
1492 | if (!strcmp(name, "vlan_id")) { | |
1493 | len = num_arg(&user_buffer[i], 4, &value); | |
1494 | if (len < 0) { | |
1495 | return len; | |
1496 | } | |
1497 | i += len; | |
1498 | if (value <= 4095) { | |
1499 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1500 | ||
1501 | if (debug) | |
25a8b254 | 1502 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1503 | |
1504 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1505 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1506 | |
1507 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1508 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1509 | } else { | |
1510 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1511 | pkt_dev->svlan_id = 0xffff; | |
1512 | ||
1513 | if (debug) | |
25a8b254 | 1514 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1515 | } |
1516 | return count; | |
1517 | } | |
1518 | ||
1519 | if (!strcmp(name, "vlan_p")) { | |
1520 | len = num_arg(&user_buffer[i], 1, &value); | |
1521 | if (len < 0) { | |
1522 | return len; | |
1523 | } | |
1524 | i += len; | |
1525 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1526 | pkt_dev->vlan_p = value; | |
1527 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1528 | } else { | |
1529 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1530 | } | |
1531 | return count; | |
1532 | } | |
1533 | ||
1534 | if (!strcmp(name, "vlan_cfi")) { | |
1535 | len = num_arg(&user_buffer[i], 1, &value); | |
1536 | if (len < 0) { | |
1537 | return len; | |
1538 | } | |
1539 | i += len; | |
1540 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1541 | pkt_dev->vlan_cfi = value; | |
1542 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1543 | } else { | |
1544 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1545 | } | |
1546 | return count; | |
1547 | } | |
1548 | ||
1549 | if (!strcmp(name, "svlan_id")) { | |
1550 | len = num_arg(&user_buffer[i], 4, &value); | |
1551 | if (len < 0) { | |
1552 | return len; | |
1553 | } | |
1554 | i += len; | |
1555 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1556 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1557 | ||
1558 | if (debug) | |
25a8b254 | 1559 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1560 | |
1561 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1562 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1563 | |
1564 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1565 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1566 | } else { | |
1567 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1568 | pkt_dev->svlan_id = 0xffff; | |
1569 | ||
1570 | if (debug) | |
25a8b254 | 1571 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1572 | } |
1573 | return count; | |
1574 | } | |
1575 | ||
1576 | if (!strcmp(name, "svlan_p")) { | |
1577 | len = num_arg(&user_buffer[i], 1, &value); | |
1578 | if (len < 0) { | |
1579 | return len; | |
1580 | } | |
1581 | i += len; | |
1582 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1583 | pkt_dev->svlan_p = value; | |
1584 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1585 | } else { | |
1586 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1587 | } | |
1588 | return count; | |
1589 | } | |
1590 | ||
1591 | if (!strcmp(name, "svlan_cfi")) { | |
1592 | len = num_arg(&user_buffer[i], 1, &value); | |
1593 | if (len < 0) { | |
1594 | return len; | |
1595 | } | |
1596 | i += len; | |
1597 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1598 | pkt_dev->svlan_cfi = value; | |
1599 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1600 | } else { | |
1601 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1602 | } | |
ca6549af SW |
1603 | return count; |
1604 | } | |
1605 | ||
1ca7768c FF |
1606 | if (!strcmp(name, "tos")) { |
1607 | __u32 tmp_value = 0; | |
1608 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1609 | if (len < 0) { | |
1610 | return len; | |
1611 | } | |
1612 | i += len; | |
1613 | if (len == 2) { | |
1614 | pkt_dev->tos = tmp_value; | |
1615 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1616 | } else { | |
1617 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1618 | } | |
1619 | return count; | |
1620 | } | |
1621 | ||
1622 | if (!strcmp(name, "traffic_class")) { | |
1623 | __u32 tmp_value = 0; | |
1624 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1625 | if (len < 0) { | |
1626 | return len; | |
1627 | } | |
1628 | i += len; | |
1629 | if (len == 2) { | |
1630 | pkt_dev->traffic_class = tmp_value; | |
1631 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1632 | } else { | |
1633 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1634 | } | |
1635 | return count; | |
1636 | } | |
1637 | ||
1da177e4 LT |
1638 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1639 | return -EINVAL; | |
1640 | } | |
1641 | ||
d50a6b56 | 1642 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1643 | { |
d50a6b56 SH |
1644 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1645 | } | |
1da177e4 | 1646 | |
9a32144e | 1647 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1648 | .owner = THIS_MODULE, |
1649 | .open = pktgen_if_open, | |
1650 | .read = seq_read, | |
1651 | .llseek = seq_lseek, | |
1652 | .write = pktgen_if_write, | |
1653 | .release = single_release, | |
d50a6b56 | 1654 | }; |
1da177e4 | 1655 | |
d50a6b56 SH |
1656 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1657 | { | |
222f1806 | 1658 | struct pktgen_thread *t = seq->private; |
c26a8016 | 1659 | struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1660 | |
1661 | BUG_ON(!t); | |
1da177e4 | 1662 | |
222f1806 | 1663 | seq_printf(seq, "Running: "); |
1da177e4 | 1664 | |
222f1806 | 1665 | if_lock(t); |
c26a8016 | 1666 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1667 | if (pkt_dev->running) |
39df232f | 1668 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 | 1669 | |
222f1806 LC |
1670 | seq_printf(seq, "\nStopped: "); |
1671 | ||
c26a8016 | 1672 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1673 | if (!pkt_dev->running) |
39df232f | 1674 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 LT |
1675 | |
1676 | if (t->result[0]) | |
d50a6b56 | 1677 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1678 | else |
d50a6b56 | 1679 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1680 | |
222f1806 | 1681 | if_unlock(t); |
1da177e4 | 1682 | |
d50a6b56 | 1683 | return 0; |
1da177e4 LT |
1684 | } |
1685 | ||
d50a6b56 | 1686 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1687 | const char __user * user_buffer, |
1688 | size_t count, loff_t * offset) | |
1da177e4 | 1689 | { |
222f1806 LC |
1690 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1691 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1692 | int i = 0, max, len, ret; |
1693 | char name[40]; | |
222f1806 | 1694 | char *pg_result; |
d50a6b56 | 1695 | |
1da177e4 | 1696 | if (count < 1) { |
222f1806 | 1697 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1698 | return -EINVAL; |
1699 | } | |
d50a6b56 | 1700 | |
1da177e4 | 1701 | max = count - i; |
222f1806 LC |
1702 | len = count_trail_chars(&user_buffer[i], max); |
1703 | if (len < 0) | |
d50a6b56 SH |
1704 | return len; |
1705 | ||
1da177e4 | 1706 | i += len; |
d50a6b56 | 1707 | |
1da177e4 LT |
1708 | /* Read variable name */ |
1709 | ||
1710 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1711 | if (len < 0) |
d50a6b56 | 1712 | return len; |
222f1806 | 1713 | |
1da177e4 LT |
1714 | memset(name, 0, sizeof(name)); |
1715 | if (copy_from_user(name, &user_buffer[i], len)) | |
1716 | return -EFAULT; | |
1717 | i += len; | |
d50a6b56 | 1718 | |
222f1806 | 1719 | max = count - i; |
1da177e4 | 1720 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1721 | if (len < 0) |
d50a6b56 SH |
1722 | return len; |
1723 | ||
1da177e4 LT |
1724 | i += len; |
1725 | ||
d50a6b56 | 1726 | if (debug) |
25a8b254 DM |
1727 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1728 | name, (unsigned long)count); | |
1da177e4 | 1729 | |
222f1806 | 1730 | if (!t) { |
25a8b254 | 1731 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1732 | ret = -EINVAL; |
1733 | goto out; | |
1734 | } | |
1735 | ||
1736 | pg_result = &(t->result[0]); | |
1737 | ||
222f1806 LC |
1738 | if (!strcmp(name, "add_device")) { |
1739 | char f[32]; | |
1740 | memset(f, 0, 32); | |
1da177e4 | 1741 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1742 | if (len < 0) { |
1743 | ret = len; | |
1da177e4 LT |
1744 | goto out; |
1745 | } | |
222f1806 | 1746 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1747 | return -EFAULT; |
1748 | i += len; | |
6146e6a4 | 1749 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1750 | pktgen_add_device(t, f); |
6146e6a4 | 1751 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1752 | ret = count; |
1753 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1754 | goto out; |
1755 | } | |
1756 | ||
222f1806 | 1757 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1758 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1759 | t->control |= T_REMDEVALL; |
6146e6a4 | 1760 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1761 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1762 | ret = count; |
222f1806 | 1763 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1764 | goto out; |
1765 | } | |
1766 | ||
222f1806 | 1767 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1768 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1769 | ret = count; |
1da177e4 LT |
1770 | goto out; |
1771 | } | |
1772 | ||
1773 | ret = -EINVAL; | |
222f1806 | 1774 | out: |
1da177e4 LT |
1775 | return ret; |
1776 | } | |
1777 | ||
d50a6b56 | 1778 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1779 | { |
d50a6b56 | 1780 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1781 | } |
1782 | ||
9a32144e | 1783 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1784 | .owner = THIS_MODULE, |
1785 | .open = pktgen_thread_open, | |
1786 | .read = seq_read, | |
1787 | .llseek = seq_lseek, | |
1788 | .write = pktgen_thread_write, | |
1789 | .release = single_release, | |
d50a6b56 | 1790 | }; |
1da177e4 LT |
1791 | |
1792 | /* Think find or remove for NN */ | |
222f1806 | 1793 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1794 | { |
1795 | struct pktgen_thread *t; | |
1796 | struct pktgen_dev *pkt_dev = NULL; | |
1797 | ||
cdcdbe0b | 1798 | list_for_each_entry(t, &pktgen_threads, th_list) { |
1da177e4 LT |
1799 | pkt_dev = pktgen_find_dev(t, ifname); |
1800 | if (pkt_dev) { | |
222f1806 LC |
1801 | if (remove) { |
1802 | if_lock(t); | |
1803 | pkt_dev->removal_mark = 1; | |
1804 | t->control |= T_REMDEV; | |
1805 | if_unlock(t); | |
1806 | } | |
1da177e4 LT |
1807 | break; |
1808 | } | |
1da177e4 | 1809 | } |
222f1806 | 1810 | return pkt_dev; |
1da177e4 LT |
1811 | } |
1812 | ||
95ed63f7 AK |
1813 | /* |
1814 | * mark a device for removal | |
1815 | */ | |
39df232f | 1816 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1817 | { |
1818 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1819 | const int max_tries = 10, msec_per_try = 125; |
1820 | int i = 0; | |
95ed63f7 | 1821 | |
6146e6a4 | 1822 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1823 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1824 | |
222f1806 | 1825 | while (1) { |
95ed63f7 AK |
1826 | |
1827 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1828 | if (pkt_dev == NULL) |
1829 | break; /* success */ | |
95ed63f7 | 1830 | |
6146e6a4 | 1831 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1832 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1833 | "to disappear....\n", ifname); | |
95ed63f7 | 1834 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1835 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1836 | |
1837 | if (++i >= max_tries) { | |
25a8b254 DM |
1838 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1839 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1840 | msec_per_try * i, ifname); |
95ed63f7 AK |
1841 | break; |
1842 | } | |
1843 | ||
1844 | } | |
1845 | ||
6146e6a4 | 1846 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1847 | } |
95ed63f7 | 1848 | |
39df232f SH |
1849 | static void pktgen_change_name(struct net_device *dev) |
1850 | { | |
1851 | struct pktgen_thread *t; | |
1852 | ||
1853 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1854 | struct pktgen_dev *pkt_dev; | |
1855 | ||
1856 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1857 | if (pkt_dev->odev != dev) | |
1858 | continue; | |
1859 | ||
1860 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1861 | ||
1862 | pkt_dev->entry = create_proc_entry(dev->name, 0600, | |
1863 | pg_proc_dir); | |
1864 | if (!pkt_dev->entry) | |
1865 | printk(KERN_ERR "pktgen: can't move proc " | |
1866 | " entry for '%s'\n", dev->name); | |
1867 | break; | |
1868 | } | |
1869 | } | |
1da177e4 LT |
1870 | } |
1871 | ||
222f1806 LC |
1872 | static int pktgen_device_event(struct notifier_block *unused, |
1873 | unsigned long event, void *ptr) | |
1da177e4 | 1874 | { |
39df232f | 1875 | struct net_device *dev = ptr; |
1da177e4 | 1876 | |
c346dca1 | 1877 | if (dev_net(dev) != &init_net) |
e9dc8653 EB |
1878 | return NOTIFY_DONE; |
1879 | ||
1da177e4 LT |
1880 | /* It is OK that we do not hold the group lock right now, |
1881 | * as we run under the RTNL lock. | |
1882 | */ | |
1883 | ||
1884 | switch (event) { | |
39df232f SH |
1885 | case NETDEV_CHANGENAME: |
1886 | pktgen_change_name(dev); | |
1da177e4 | 1887 | break; |
222f1806 | 1888 | |
1da177e4 | 1889 | case NETDEV_UNREGISTER: |
222f1806 | 1890 | pktgen_mark_device(dev->name); |
1da177e4 | 1891 | break; |
3ff50b79 | 1892 | } |
1da177e4 LT |
1893 | |
1894 | return NOTIFY_DONE; | |
1895 | } | |
1896 | ||
1897 | /* Associate pktgen_dev with a device. */ | |
1898 | ||
39df232f | 1899 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1900 | { |
1da177e4 | 1901 | struct net_device *odev; |
39df232f | 1902 | int err; |
1da177e4 LT |
1903 | |
1904 | /* Clean old setups */ | |
1da177e4 LT |
1905 | if (pkt_dev->odev) { |
1906 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1907 | pkt_dev->odev = NULL; |
1908 | } | |
1da177e4 | 1909 | |
881d966b | 1910 | odev = dev_get_by_name(&init_net, ifname); |
1da177e4 | 1911 | if (!odev) { |
25a8b254 | 1912 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1913 | return -ENODEV; |
1da177e4 | 1914 | } |
39df232f | 1915 | |
1da177e4 | 1916 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1917 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1918 | err = -EINVAL; |
1919 | } else if (!netif_running(odev)) { | |
25a8b254 | 1920 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1921 | err = -ENETDOWN; |
1922 | } else { | |
1923 | pkt_dev->odev = odev; | |
1924 | return 0; | |
1da177e4 | 1925 | } |
1da177e4 | 1926 | |
1da177e4 | 1927 | dev_put(odev); |
39df232f | 1928 | return err; |
1da177e4 LT |
1929 | } |
1930 | ||
1931 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1932 | * structure to have the right information to create/send packets | |
1933 | */ | |
1934 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1935 | { | |
222f1806 | 1936 | if (!pkt_dev->odev) { |
25a8b254 DM |
1937 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1938 | "setup_inject.\n"); | |
222f1806 LC |
1939 | sprintf(pkt_dev->result, |
1940 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1941 | return; | |
1942 | } | |
1943 | ||
1944 | /* Default to the interface's mac if not explicitly set. */ | |
1da177e4 | 1945 | |
f404e9a6 | 1946 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 1947 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 1948 | |
222f1806 | 1949 | /* Set up Dest MAC */ |
f404e9a6 | 1950 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 1951 | |
222f1806 LC |
1952 | /* Set up pkt size */ |
1953 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
1954 | ||
1955 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 1956 | /* |
4ec93edb | 1957 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
1958 | * gets exported |
1959 | */ | |
1960 | ||
1961 | #ifdef NOTNOW | |
222f1806 | 1962 | int i, set = 0, err = 1; |
1da177e4 LT |
1963 | struct inet6_dev *idev; |
1964 | ||
222f1806 LC |
1965 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
1966 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
1967 | set = 1; |
1968 | break; | |
1969 | } | |
1970 | ||
222f1806 LC |
1971 | if (!set) { |
1972 | ||
1da177e4 LT |
1973 | /* |
1974 | * Use linklevel address if unconfigured. | |
1975 | * | |
1976 | * use ipv6_get_lladdr if/when it's get exported | |
1977 | */ | |
1978 | ||
8814c4b5 | 1979 | rcu_read_lock(); |
1da177e4 LT |
1980 | if ((idev = __in6_dev_get(pkt_dev->odev)) != NULL) { |
1981 | struct inet6_ifaddr *ifp; | |
1982 | ||
1983 | read_lock_bh(&idev->lock); | |
222f1806 LC |
1984 | for (ifp = idev->addr_list; ifp; |
1985 | ifp = ifp->if_next) { | |
1986 | if (ifp->scope == IFA_LINK | |
1987 | && !(ifp-> | |
1988 | flags & IFA_F_TENTATIVE)) { | |
1989 | ipv6_addr_copy(&pkt_dev-> | |
1990 | cur_in6_saddr, | |
1991 | &ifp->addr); | |
1da177e4 LT |
1992 | err = 0; |
1993 | break; | |
1994 | } | |
1995 | } | |
1996 | read_unlock_bh(&idev->lock); | |
1997 | } | |
8814c4b5 | 1998 | rcu_read_unlock(); |
222f1806 | 1999 | if (err) |
25a8b254 DM |
2000 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2001 | "address not availble.\n"); | |
1da177e4 LT |
2002 | } |
2003 | #endif | |
222f1806 | 2004 | } else { |
1da177e4 LT |
2005 | pkt_dev->saddr_min = 0; |
2006 | pkt_dev->saddr_max = 0; | |
2007 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2008 | |
2009 | struct in_device *in_dev; | |
1da177e4 LT |
2010 | |
2011 | rcu_read_lock(); | |
e5ed6399 | 2012 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2013 | if (in_dev) { |
2014 | if (in_dev->ifa_list) { | |
222f1806 LC |
2015 | pkt_dev->saddr_min = |
2016 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2017 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2018 | } | |
1da177e4 LT |
2019 | } |
2020 | rcu_read_unlock(); | |
222f1806 | 2021 | } else { |
1da177e4 LT |
2022 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2023 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2024 | } | |
2025 | ||
2026 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2027 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2028 | } | |
222f1806 LC |
2029 | /* Initialize current values. */ |
2030 | pkt_dev->cur_dst_mac_offset = 0; | |
2031 | pkt_dev->cur_src_mac_offset = 0; | |
2032 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2033 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2034 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2035 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2036 | pkt_dev->nflows = 0; |
2037 | } | |
2038 | ||
2039 | static void spin(struct pktgen_dev *pkt_dev, __u64 spin_until_us) | |
2040 | { | |
2041 | __u64 start; | |
2042 | __u64 now; | |
2043 | ||
2044 | start = now = getCurUs(); | |
1da177e4 | 2045 | while (now < spin_until_us) { |
b4099fab | 2046 | /* TODO: optimize sleeping behavior */ |
222f1806 | 2047 | if (spin_until_us - now > jiffies_to_usecs(1) + 1) |
121caf57 NA |
2048 | schedule_timeout_interruptible(1); |
2049 | else if (spin_until_us - now > 100) { | |
1da177e4 LT |
2050 | if (!pkt_dev->running) |
2051 | return; | |
2052 | if (need_resched()) | |
2053 | schedule(); | |
2054 | } | |
2055 | ||
2056 | now = getCurUs(); | |
2057 | } | |
2058 | ||
2059 | pkt_dev->idle_acc += now - start; | |
2060 | } | |
2061 | ||
16dab72f JHS |
2062 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2063 | { | |
a553e4a6 | 2064 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2065 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2066 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2067 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2068 | } | |
2069 | ||
007a531b JHS |
2070 | static inline int f_seen(struct pktgen_dev *pkt_dev, int flow) |
2071 | { | |
2072 | ||
2073 | if (pkt_dev->flows[flow].flags & F_INIT) | |
2074 | return 1; | |
2075 | else | |
2076 | return 0; | |
2077 | } | |
2078 | ||
2079 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2080 | { | |
2081 | int flow = pkt_dev->curfl; | |
2082 | ||
2083 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2084 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2085 | /* reset time */ | |
2086 | pkt_dev->flows[flow].count = 0; | |
2087 | pkt_dev->curfl += 1; | |
2088 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2089 | pkt_dev->curfl = 0; /*reset */ | |
2090 | } | |
2091 | } else { | |
2092 | flow = random32() % pkt_dev->cflows; | |
2093 | ||
2094 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) | |
2095 | pkt_dev->flows[flow].count = 0; | |
2096 | } | |
2097 | ||
2098 | return pkt_dev->curfl; | |
2099 | } | |
2100 | ||
a553e4a6 JHS |
2101 | |
2102 | #ifdef CONFIG_XFRM | |
2103 | /* If there was already an IPSEC SA, we keep it as is, else | |
2104 | * we go look for it ... | |
2105 | */ | |
fea1ab0f | 2106 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2107 | { |
2108 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2109 | if (!x) { | |
2110 | /*slow path: we dont already have xfrm_state*/ | |
2111 | x = xfrm_stateonly_find((xfrm_address_t *)&pkt_dev->cur_daddr, | |
2112 | (xfrm_address_t *)&pkt_dev->cur_saddr, | |
2113 | AF_INET, | |
2114 | pkt_dev->ipsmode, | |
2115 | pkt_dev->ipsproto, 0); | |
2116 | if (x) { | |
2117 | pkt_dev->flows[flow].x = x; | |
2118 | set_pkt_overhead(pkt_dev); | |
2119 | pkt_dev->pkt_overhead+=x->props.header_len; | |
2120 | } | |
2121 | ||
2122 | } | |
2123 | } | |
2124 | #endif | |
1da177e4 LT |
2125 | /* Increment/randomize headers according to flags and current values |
2126 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2127 | */ | |
222f1806 LC |
2128 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2129 | { | |
2130 | __u32 imn; | |
2131 | __u32 imx; | |
2132 | int flow = 0; | |
1da177e4 | 2133 | |
007a531b JHS |
2134 | if (pkt_dev->cflows) |
2135 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2136 | |
2137 | /* Deal with source MAC */ | |
222f1806 LC |
2138 | if (pkt_dev->src_mac_count > 1) { |
2139 | __u32 mc; | |
2140 | __u32 tmp; | |
2141 | ||
2142 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2143 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2144 | else { |
2145 | mc = pkt_dev->cur_src_mac_offset++; | |
2146 | if (pkt_dev->cur_src_mac_offset > | |
2147 | pkt_dev->src_mac_count) | |
2148 | pkt_dev->cur_src_mac_offset = 0; | |
2149 | } | |
2150 | ||
2151 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2152 | pkt_dev->hh[11] = tmp; | |
2153 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2154 | pkt_dev->hh[10] = tmp; | |
2155 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2156 | pkt_dev->hh[9] = tmp; | |
2157 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2158 | pkt_dev->hh[8] = tmp; | |
2159 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2160 | pkt_dev->hh[7] = tmp; | |
2161 | } | |
2162 | ||
2163 | /* Deal with Destination MAC */ | |
2164 | if (pkt_dev->dst_mac_count > 1) { | |
2165 | __u32 mc; | |
2166 | __u32 tmp; | |
2167 | ||
2168 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2169 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2170 | |
2171 | else { | |
2172 | mc = pkt_dev->cur_dst_mac_offset++; | |
2173 | if (pkt_dev->cur_dst_mac_offset > | |
2174 | pkt_dev->dst_mac_count) { | |
2175 | pkt_dev->cur_dst_mac_offset = 0; | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2180 | pkt_dev->hh[5] = tmp; | |
2181 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2182 | pkt_dev->hh[4] = tmp; | |
2183 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2184 | pkt_dev->hh[3] = tmp; | |
2185 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2186 | pkt_dev->hh[2] = tmp; | |
2187 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2188 | pkt_dev->hh[1] = tmp; | |
2189 | } | |
2190 | ||
ca6549af SW |
2191 | if (pkt_dev->flags & F_MPLS_RND) { |
2192 | unsigned i; | |
e71a4783 | 2193 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2194 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2195 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2196 | ((__force __be32)random32() & |
ca6549af SW |
2197 | htonl(0x000fffff)); |
2198 | } | |
2199 | ||
34954ddc | 2200 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2201 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2202 | } |
2203 | ||
2204 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2205 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2206 | } |
2207 | ||
222f1806 LC |
2208 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2209 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2210 | pkt_dev->cur_udp_src = random32() % |
2211 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2212 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2213 | |
2214 | else { | |
1da177e4 LT |
2215 | pkt_dev->cur_udp_src++; |
2216 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2217 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2218 | } |
2219 | } | |
2220 | ||
2221 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2222 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2223 | pkt_dev->cur_udp_dst = random32() % |
2224 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2225 | + pkt_dev->udp_dst_min; | |
222f1806 | 2226 | } else { |
1da177e4 | 2227 | pkt_dev->cur_udp_dst++; |
222f1806 | 2228 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2229 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2230 | } |
2231 | } | |
1da177e4 LT |
2232 | |
2233 | if (!(pkt_dev->flags & F_IPV6)) { | |
2234 | ||
222f1806 LC |
2235 | if ((imn = ntohl(pkt_dev->saddr_min)) < (imx = |
2236 | ntohl(pkt_dev-> | |
2237 | saddr_max))) { | |
1da177e4 | 2238 | __u32 t; |
222f1806 | 2239 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2240 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2241 | else { |
2242 | t = ntohl(pkt_dev->cur_saddr); | |
2243 | t++; | |
2244 | if (t > imx) { | |
2245 | t = imn; | |
2246 | } | |
2247 | } | |
2248 | pkt_dev->cur_saddr = htonl(t); | |
2249 | } | |
222f1806 | 2250 | |
007a531b | 2251 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2252 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2253 | } else { | |
252e3346 AV |
2254 | imn = ntohl(pkt_dev->daddr_min); |
2255 | imx = ntohl(pkt_dev->daddr_max); | |
2256 | if (imn < imx) { | |
1da177e4 | 2257 | __u32 t; |
252e3346 | 2258 | __be32 s; |
1da177e4 LT |
2259 | if (pkt_dev->flags & F_IPDST_RND) { |
2260 | ||
5fa6fc76 | 2261 | t = random32() % (imx - imn) + imn; |
252e3346 | 2262 | s = htonl(t); |
1da177e4 | 2263 | |
21cf2253 JP |
2264 | while (ipv4_is_loopback(s) || |
2265 | ipv4_is_multicast(s) || | |
1e637c74 | 2266 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2267 | ipv4_is_zeronet(s) || |
2268 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2269 | t = random32() % (imx - imn) + imn; |
252e3346 | 2270 | s = htonl(t); |
1da177e4 | 2271 | } |
252e3346 AV |
2272 | pkt_dev->cur_daddr = s; |
2273 | } else { | |
1da177e4 LT |
2274 | t = ntohl(pkt_dev->cur_daddr); |
2275 | t++; | |
2276 | if (t > imx) { | |
2277 | t = imn; | |
2278 | } | |
2279 | pkt_dev->cur_daddr = htonl(t); | |
2280 | } | |
2281 | } | |
222f1806 | 2282 | if (pkt_dev->cflows) { |
007a531b | 2283 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2284 | pkt_dev->flows[flow].cur_daddr = |
2285 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2286 | #ifdef CONFIG_XFRM |
2287 | if (pkt_dev->flags & F_IPSEC_ON) | |
2288 | get_ipsec_sa(pkt_dev, flow); | |
2289 | #endif | |
1da177e4 LT |
2290 | pkt_dev->nflows++; |
2291 | } | |
2292 | } | |
222f1806 LC |
2293 | } else { /* IPV6 * */ |
2294 | ||
2295 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2296 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2297 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2298 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2299 | else { |
2300 | int i; | |
2301 | ||
2302 | /* Only random destinations yet */ | |
2303 | ||
222f1806 | 2304 | for (i = 0; i < 4; i++) { |
1da177e4 | 2305 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2306 | (((__force __be32)random32() | |
222f1806 LC |
2307 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2308 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2309 | } |
222f1806 | 2310 | } |
1da177e4 LT |
2311 | } |
2312 | ||
222f1806 LC |
2313 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2314 | __u32 t; | |
2315 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2316 | t = random32() % |
2317 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2318 | + pkt_dev->min_pkt_size; | |
222f1806 | 2319 | } else { |
1da177e4 | 2320 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2321 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2322 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2323 | } |
2324 | pkt_dev->cur_pkt_size = t; | |
2325 | } | |
1da177e4 | 2326 | |
45b270f8 RO |
2327 | if (pkt_dev->queue_map_min < pkt_dev->queue_map_max) { |
2328 | __u16 t; | |
2329 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2330 | t = random32() % | |
2331 | (pkt_dev->queue_map_max - pkt_dev->queue_map_min + 1) | |
2332 | + pkt_dev->queue_map_min; | |
2333 | } else { | |
2334 | t = pkt_dev->cur_queue_map + 1; | |
2335 | if (t > pkt_dev->queue_map_max) | |
2336 | t = pkt_dev->queue_map_min; | |
2337 | } | |
2338 | pkt_dev->cur_queue_map = t; | |
2339 | } | |
2340 | ||
1da177e4 LT |
2341 | pkt_dev->flows[flow].count++; |
2342 | } | |
2343 | ||
a553e4a6 JHS |
2344 | |
2345 | #ifdef CONFIG_XFRM | |
2346 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2347 | { | |
2348 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2349 | int err = 0; | |
2350 | struct iphdr *iph; | |
2351 | ||
2352 | if (!x) | |
2353 | return 0; | |
2354 | /* XXX: we dont support tunnel mode for now until | |
2355 | * we resolve the dst issue */ | |
2356 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2357 | return 0; | |
2358 | ||
2359 | spin_lock(&x->lock); | |
2360 | iph = ip_hdr(skb); | |
2361 | ||
13996378 | 2362 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2363 | if (err) |
2364 | goto error; | |
2365 | err = x->type->output(x, skb); | |
2366 | if (err) | |
2367 | goto error; | |
2368 | ||
2369 | x->curlft.bytes +=skb->len; | |
2370 | x->curlft.packets++; | |
a553e4a6 JHS |
2371 | error: |
2372 | spin_unlock(&x->lock); | |
2373 | return err; | |
2374 | } | |
2375 | ||
2376 | static inline void free_SAs(struct pktgen_dev *pkt_dev) | |
2377 | { | |
2378 | if (pkt_dev->cflows) { | |
2379 | /* let go of the SAs if we have them */ | |
2380 | int i = 0; | |
2381 | for (; i < pkt_dev->nflows; i++){ | |
2382 | struct xfrm_state *x = pkt_dev->flows[i].x; | |
2383 | if (x) { | |
2384 | xfrm_state_put(x); | |
2385 | pkt_dev->flows[i].x = NULL; | |
2386 | } | |
2387 | } | |
2388 | } | |
2389 | } | |
2390 | ||
2391 | static inline int process_ipsec(struct pktgen_dev *pkt_dev, | |
2392 | struct sk_buff *skb, __be16 protocol) | |
2393 | { | |
2394 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2395 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2396 | int nhead = 0; | |
2397 | if (x) { | |
2398 | int ret; | |
2399 | __u8 *eth; | |
2400 | nhead = x->props.header_len - skb_headroom(skb); | |
2401 | if (nhead >0) { | |
2402 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); | |
2403 | if (ret < 0) { | |
25a8b254 DM |
2404 | printk(KERN_ERR "Error expanding " |
2405 | "ipsec packet %d\n",ret); | |
a553e4a6 JHS |
2406 | return 0; |
2407 | } | |
2408 | } | |
2409 | ||
2410 | /* ipsec is not expecting ll header */ | |
2411 | skb_pull(skb, ETH_HLEN); | |
2412 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2413 | if (ret) { | |
25a8b254 DM |
2414 | printk(KERN_ERR "Error creating ipsec " |
2415 | "packet %d\n",ret); | |
a553e4a6 JHS |
2416 | kfree_skb(skb); |
2417 | return 0; | |
2418 | } | |
2419 | /* restore ll */ | |
2420 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2421 | memcpy(eth, pkt_dev->hh, 12); | |
2422 | *(u16 *) & eth[12] = protocol; | |
2423 | } | |
2424 | } | |
2425 | return 1; | |
2426 | } | |
2427 | #endif | |
2428 | ||
ca6549af SW |
2429 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2430 | { | |
2431 | unsigned i; | |
e71a4783 | 2432 | for (i = 0; i < pkt_dev->nr_labels; i++) { |
ca6549af SW |
2433 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
2434 | } | |
2435 | mpls--; | |
2436 | *mpls |= MPLS_STACK_BOTTOM; | |
2437 | } | |
2438 | ||
0f37c605 AV |
2439 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2440 | unsigned int prio) | |
2441 | { | |
2442 | return htons(id | (cfi << 12) | (prio << 13)); | |
2443 | } | |
2444 | ||
222f1806 LC |
2445 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2446 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2447 | { |
2448 | struct sk_buff *skb = NULL; | |
2449 | __u8 *eth; | |
2450 | struct udphdr *udph; | |
2451 | int datalen, iplen; | |
2452 | struct iphdr *iph; | |
222f1806 | 2453 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2454 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2455 | __be32 *mpls; |
34954ddc FF |
2456 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2457 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2458 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2459 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
2460 | ||
ca6549af SW |
2461 | |
2462 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2463 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2464 | |
34954ddc | 2465 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2466 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2467 | |
64053bee RO |
2468 | /* Update any of the values, used when we're incrementing various |
2469 | * fields. | |
2470 | */ | |
2471 | mod_cur_headers(pkt_dev); | |
2472 | ||
7ac5459e | 2473 | datalen = (odev->hard_header_len + 16) & ~0xf; |
ca6549af | 2474 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + datalen + |
16dab72f | 2475 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2476 | if (!skb) { |
2477 | sprintf(pkt_dev->result, "No memory"); | |
2478 | return NULL; | |
2479 | } | |
2480 | ||
7ac5459e | 2481 | skb_reserve(skb, datalen); |
1da177e4 LT |
2482 | |
2483 | /* Reserve for ethernet and IP header */ | |
2484 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2485 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2486 | if (pkt_dev->nr_labels) | |
2487 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2488 | |
2489 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2490 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2491 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2492 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2493 | pkt_dev->svlan_cfi, | |
2494 | pkt_dev->svlan_p); | |
34954ddc | 2495 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2496 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2497 | } |
2498 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2499 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2500 | pkt_dev->vlan_cfi, | |
2501 | pkt_dev->vlan_p); | |
34954ddc | 2502 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2503 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2504 | } |
2505 | ||
27a884dc | 2506 | skb->network_header = skb->tail; |
b0e380b1 | 2507 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2508 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
dfa40911 | 2509 | skb_set_queue_mapping(skb, pkt_dev->cur_queue_map); |
ddc7b8e3 ACM |
2510 | iph = ip_hdr(skb); |
2511 | udph = udp_hdr(skb); | |
1da177e4 | 2512 | |
1da177e4 | 2513 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2514 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2515 | |
ca6549af SW |
2516 | /* Eth + IPh + UDPh + mpls */ |
2517 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2518 | pkt_dev->pkt_overhead; |
222f1806 | 2519 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2520 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2521 | |
1da177e4 LT |
2522 | udph->source = htons(pkt_dev->cur_udp_src); |
2523 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2524 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2525 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2526 | |
2527 | iph->ihl = 5; | |
2528 | iph->version = 4; | |
2529 | iph->ttl = 32; | |
1ca7768c | 2530 | iph->tos = pkt_dev->tos; |
222f1806 | 2531 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2532 | iph->saddr = pkt_dev->cur_saddr; |
2533 | iph->daddr = pkt_dev->cur_daddr; | |
2534 | iph->frag_off = 0; | |
2535 | iplen = 20 + 8 + datalen; | |
2536 | iph->tot_len = htons(iplen); | |
2537 | iph->check = 0; | |
222f1806 | 2538 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2539 | skb->protocol = protocol; |
b0e380b1 | 2540 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2541 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2542 | skb->dev = odev; |
2543 | skb->pkt_type = PACKET_HOST; | |
2544 | ||
222f1806 LC |
2545 | if (pkt_dev->nfrags <= 0) |
2546 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2547 | else { |
2548 | int frags = pkt_dev->nfrags; | |
2549 | int i; | |
2550 | ||
222f1806 LC |
2551 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2552 | ||
1da177e4 LT |
2553 | if (frags > MAX_SKB_FRAGS) |
2554 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2555 | if (datalen > frags * PAGE_SIZE) { |
2556 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2557 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2558 | } |
2559 | ||
2560 | i = 0; | |
2561 | while (datalen > 0) { | |
2562 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2563 | skb_shinfo(skb)->frags[i].page = page; | |
2564 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2565 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2566 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2567 | datalen -= skb_shinfo(skb)->frags[i].size; |
2568 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2569 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2570 | i++; | |
2571 | skb_shinfo(skb)->nr_frags = i; | |
2572 | } | |
2573 | ||
2574 | while (i < frags) { | |
2575 | int rem; | |
2576 | ||
2577 | if (i == 0) | |
2578 | break; | |
2579 | ||
2580 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2581 | if (rem == 0) | |
2582 | break; | |
2583 | ||
2584 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2585 | ||
222f1806 LC |
2586 | skb_shinfo(skb)->frags[i] = |
2587 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2588 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2589 | skb_shinfo(skb)->frags[i].page = |
2590 | skb_shinfo(skb)->frags[i - 1].page; | |
2591 | skb_shinfo(skb)->frags[i].page_offset += | |
2592 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2593 | skb_shinfo(skb)->frags[i].size = rem; |
2594 | i++; | |
2595 | skb_shinfo(skb)->nr_frags = i; | |
2596 | } | |
2597 | } | |
2598 | ||
222f1806 LC |
2599 | /* Stamp the time, and sequence number, convert them to network byte order */ |
2600 | ||
2601 | if (pgh) { | |
2602 | struct timeval timestamp; | |
2603 | ||
2604 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2605 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2606 | ||
2607 | do_gettimeofday(×tamp); | |
2608 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2609 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2610 | } | |
1da177e4 | 2611 | |
a553e4a6 JHS |
2612 | #ifdef CONFIG_XFRM |
2613 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2614 | return NULL; | |
2615 | #endif | |
2616 | ||
1da177e4 LT |
2617 | return skb; |
2618 | } | |
2619 | ||
2620 | /* | |
4ec93edb | 2621 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2622 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2623 | * | |
4ec93edb | 2624 | * Slightly modified for kernel. |
1da177e4 LT |
2625 | * Should be candidate for net/ipv4/utils.c |
2626 | * --ro | |
2627 | */ | |
2628 | ||
222f1806 | 2629 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2630 | { |
2631 | unsigned int i; | |
222f1806 | 2632 | unsigned int len = 0; |
1da177e4 LT |
2633 | unsigned long u; |
2634 | char suffix[16]; | |
222f1806 LC |
2635 | unsigned int prefixlen = 0; |
2636 | unsigned int suffixlen = 0; | |
252e3346 | 2637 | __be32 tmp; |
cfcabdcc | 2638 | char *pos; |
1da177e4 | 2639 | |
222f1806 LC |
2640 | for (i = 0; i < 16; i++) |
2641 | ip[i] = 0; | |
1da177e4 LT |
2642 | |
2643 | for (;;) { | |
2644 | if (*s == ':') { | |
2645 | len++; | |
222f1806 LC |
2646 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2647 | s += 2; | |
1da177e4 LT |
2648 | len++; |
2649 | break; | |
2650 | } | |
2651 | s++; | |
2652 | } | |
1da177e4 | 2653 | |
cfcabdcc SH |
2654 | u = simple_strtoul(s, &pos, 16); |
2655 | i = pos - s; | |
222f1806 LC |
2656 | if (!i) |
2657 | return 0; | |
2658 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2659 | |
2660 | /* the last 4 bytes may be written as IPv4 address */ | |
2661 | ||
2662 | tmp = in_aton(s); | |
222f1806 LC |
2663 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2664 | return i + len; | |
1da177e4 LT |
2665 | } |
2666 | ip[prefixlen++] = (u >> 8); | |
2667 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2668 | s += i; |
2669 | len += i; | |
2670 | if (prefixlen == 16) | |
1da177e4 LT |
2671 | return len; |
2672 | } | |
2673 | ||
2674 | /* part 2, after "::" */ | |
2675 | for (;;) { | |
2676 | if (*s == ':') { | |
222f1806 | 2677 | if (suffixlen == 0) |
1da177e4 LT |
2678 | break; |
2679 | s++; | |
2680 | len++; | |
222f1806 | 2681 | } else if (suffixlen != 0) |
1da177e4 | 2682 | break; |
cfcabdcc SH |
2683 | |
2684 | u = simple_strtol(s, &pos, 16); | |
2685 | i = pos - s; | |
1da177e4 | 2686 | if (!i) { |
222f1806 LC |
2687 | if (*s) |
2688 | len--; | |
1da177e4 LT |
2689 | break; |
2690 | } | |
222f1806 | 2691 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2692 | tmp = in_aton(s); |
222f1806 LC |
2693 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2694 | sizeof(tmp)); | |
2695 | suffixlen += 4; | |
2696 | len += strlen(s); | |
1da177e4 LT |
2697 | break; |
2698 | } | |
2699 | suffix[suffixlen++] = (u >> 8); | |
2700 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2701 | s += i; |
2702 | len += i; | |
2703 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2704 | break; |
2705 | } | |
222f1806 LC |
2706 | for (i = 0; i < suffixlen; i++) |
2707 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2708 | return len; |
2709 | } | |
2710 | ||
222f1806 LC |
2711 | static char tohex(char hexdigit) |
2712 | { | |
2713 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2714 | } |
2715 | ||
222f1806 LC |
2716 | static int fmt_xlong(char *s, unsigned int i) |
2717 | { | |
2718 | char *bak = s; | |
2719 | *s = tohex((i >> 12) & 0xf); | |
2720 | if (s != bak || *s != '0') | |
2721 | ++s; | |
2722 | *s = tohex((i >> 8) & 0xf); | |
2723 | if (s != bak || *s != '0') | |
2724 | ++s; | |
2725 | *s = tohex((i >> 4) & 0xf); | |
2726 | if (s != bak || *s != '0') | |
2727 | ++s; | |
2728 | *s = tohex(i & 0xf); | |
2729 | return s - bak + 1; | |
1da177e4 LT |
2730 | } |
2731 | ||
222f1806 LC |
2732 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2733 | { | |
1da177e4 LT |
2734 | unsigned int len; |
2735 | unsigned int i; | |
2736 | unsigned int temp; | |
2737 | unsigned int compressing; | |
2738 | int j; | |
2739 | ||
222f1806 LC |
2740 | len = 0; |
2741 | compressing = 0; | |
2742 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2743 | |
2744 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2745 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2746 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2747 | temp = strlen(s); | |
2748 | return len + temp; | |
1da177e4 LT |
2749 | } |
2750 | #endif | |
222f1806 LC |
2751 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2752 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2753 | if (temp == 0) { |
2754 | if (!compressing) { | |
222f1806 LC |
2755 | compressing = 1; |
2756 | if (j == 0) { | |
2757 | *s++ = ':'; | |
2758 | ++len; | |
1da177e4 LT |
2759 | } |
2760 | } | |
2761 | } else { | |
2762 | if (compressing) { | |
222f1806 LC |
2763 | compressing = 0; |
2764 | *s++ = ':'; | |
2765 | ++len; | |
1da177e4 | 2766 | } |
222f1806 LC |
2767 | i = fmt_xlong(s, temp); |
2768 | len += i; | |
2769 | s += i; | |
2770 | if (j < 14) { | |
1da177e4 LT |
2771 | *s++ = ':'; |
2772 | ++len; | |
2773 | } | |
2774 | } | |
2775 | } | |
2776 | if (compressing) { | |
222f1806 LC |
2777 | *s++ = ':'; |
2778 | ++len; | |
1da177e4 | 2779 | } |
222f1806 | 2780 | *s = 0; |
1da177e4 LT |
2781 | return len; |
2782 | } | |
2783 | ||
222f1806 LC |
2784 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2785 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2786 | { |
2787 | struct sk_buff *skb = NULL; | |
2788 | __u8 *eth; | |
2789 | struct udphdr *udph; | |
2790 | int datalen; | |
2791 | struct ipv6hdr *iph; | |
222f1806 | 2792 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2793 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2794 | __be32 *mpls; |
34954ddc FF |
2795 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2796 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2797 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2798 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
ca6549af SW |
2799 | |
2800 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2801 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2802 | |
34954ddc | 2803 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2804 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2805 | |
64053bee RO |
2806 | /* Update any of the values, used when we're incrementing various |
2807 | * fields. | |
2808 | */ | |
2809 | mod_cur_headers(pkt_dev); | |
2810 | ||
ca6549af | 2811 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16 + |
16dab72f | 2812 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2813 | if (!skb) { |
2814 | sprintf(pkt_dev->result, "No memory"); | |
2815 | return NULL; | |
2816 | } | |
2817 | ||
2818 | skb_reserve(skb, 16); | |
2819 | ||
2820 | /* Reserve for ethernet and IP header */ | |
2821 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2822 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2823 | if (pkt_dev->nr_labels) | |
2824 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2825 | |
2826 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2827 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2828 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2829 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2830 | pkt_dev->svlan_cfi, | |
2831 | pkt_dev->svlan_p); | |
34954ddc | 2832 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2833 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2834 | } |
2835 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2836 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2837 | pkt_dev->vlan_cfi, | |
2838 | pkt_dev->vlan_p); | |
34954ddc | 2839 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2840 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2841 | } |
2842 | ||
27a884dc | 2843 | skb->network_header = skb->tail; |
b0e380b1 | 2844 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2845 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
dfa40911 | 2846 | skb_set_queue_mapping(skb, pkt_dev->cur_queue_map); |
ddc7b8e3 ACM |
2847 | iph = ipv6_hdr(skb); |
2848 | udph = udp_hdr(skb); | |
1da177e4 | 2849 | |
1da177e4 | 2850 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2851 | *(__be16 *) & eth[12] = protocol; |
64053bee | 2852 | |
ca6549af SW |
2853 | /* Eth + IPh + UDPh + mpls */ |
2854 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2855 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2856 | pkt_dev->pkt_overhead; |
1da177e4 | 2857 | |
222f1806 | 2858 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2859 | datalen = sizeof(struct pktgen_hdr); |
2860 | if (net_ratelimit()) | |
222f1806 LC |
2861 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2862 | datalen); | |
1da177e4 LT |
2863 | } |
2864 | ||
2865 | udph->source = htons(pkt_dev->cur_udp_src); | |
2866 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2867 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2868 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2869 | |
d5f1ce9a | 2870 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2871 | |
1ca7768c FF |
2872 | if (pkt_dev->traffic_class) { |
2873 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2874 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2875 | } |
2876 | ||
1da177e4 LT |
2877 | iph->hop_limit = 32; |
2878 | ||
2879 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2880 | iph->nexthdr = IPPROTO_UDP; | |
2881 | ||
2882 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2883 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2884 | ||
b0e380b1 | 2885 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2886 | pkt_dev->pkt_overhead); |
ca6549af | 2887 | skb->protocol = protocol; |
1da177e4 LT |
2888 | skb->dev = odev; |
2889 | skb->pkt_type = PACKET_HOST; | |
2890 | ||
222f1806 LC |
2891 | if (pkt_dev->nfrags <= 0) |
2892 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2893 | else { |
2894 | int frags = pkt_dev->nfrags; | |
2895 | int i; | |
2896 | ||
222f1806 LC |
2897 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2898 | ||
1da177e4 LT |
2899 | if (frags > MAX_SKB_FRAGS) |
2900 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2901 | if (datalen > frags * PAGE_SIZE) { |
2902 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2903 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2904 | } |
2905 | ||
2906 | i = 0; | |
2907 | while (datalen > 0) { | |
2908 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2909 | skb_shinfo(skb)->frags[i].page = page; | |
2910 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2911 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2912 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2913 | datalen -= skb_shinfo(skb)->frags[i].size; |
2914 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2915 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2916 | i++; | |
2917 | skb_shinfo(skb)->nr_frags = i; | |
2918 | } | |
2919 | ||
2920 | while (i < frags) { | |
2921 | int rem; | |
2922 | ||
2923 | if (i == 0) | |
2924 | break; | |
2925 | ||
2926 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2927 | if (rem == 0) | |
2928 | break; | |
2929 | ||
2930 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2931 | ||
222f1806 LC |
2932 | skb_shinfo(skb)->frags[i] = |
2933 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2934 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2935 | skb_shinfo(skb)->frags[i].page = |
2936 | skb_shinfo(skb)->frags[i - 1].page; | |
2937 | skb_shinfo(skb)->frags[i].page_offset += | |
2938 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2939 | skb_shinfo(skb)->frags[i].size = rem; |
2940 | i++; | |
2941 | skb_shinfo(skb)->nr_frags = i; | |
2942 | } | |
2943 | } | |
2944 | ||
222f1806 | 2945 | /* Stamp the time, and sequence number, convert them to network byte order */ |
1da177e4 | 2946 | /* should we update cloned packets too ? */ |
222f1806 LC |
2947 | if (pgh) { |
2948 | struct timeval timestamp; | |
2949 | ||
2950 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2951 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2952 | ||
2953 | do_gettimeofday(×tamp); | |
2954 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2955 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2956 | } | |
34954ddc | 2957 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 2958 | |
1da177e4 LT |
2959 | return skb; |
2960 | } | |
2961 | ||
222f1806 LC |
2962 | static inline struct sk_buff *fill_packet(struct net_device *odev, |
2963 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 2964 | { |
222f1806 | 2965 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
2966 | return fill_packet_ipv6(odev, pkt_dev); |
2967 | else | |
2968 | return fill_packet_ipv4(odev, pkt_dev); | |
2969 | } | |
2970 | ||
222f1806 | 2971 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 2972 | { |
222f1806 LC |
2973 | pkt_dev->seq_num = 1; |
2974 | pkt_dev->idle_acc = 0; | |
1da177e4 | 2975 | pkt_dev->sofar = 0; |
222f1806 LC |
2976 | pkt_dev->tx_bytes = 0; |
2977 | pkt_dev->errors = 0; | |
1da177e4 LT |
2978 | } |
2979 | ||
2980 | /* Set up structure for sending pkts, clear counters */ | |
2981 | ||
2982 | static void pktgen_run(struct pktgen_thread *t) | |
2983 | { | |
c26a8016 | 2984 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
2985 | int started = 0; |
2986 | ||
25c4e53a | 2987 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
2988 | |
2989 | if_lock(t); | |
c26a8016 | 2990 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
2991 | |
2992 | /* | |
2993 | * setup odev and create initial packet. | |
2994 | */ | |
2995 | pktgen_setup_inject(pkt_dev); | |
2996 | ||
222f1806 | 2997 | if (pkt_dev->odev) { |
1da177e4 | 2998 | pktgen_clear_counters(pkt_dev); |
222f1806 | 2999 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 LT |
3000 | pkt_dev->skb = NULL; |
3001 | pkt_dev->started_at = getCurUs(); | |
222f1806 | 3002 | pkt_dev->next_tx_us = getCurUs(); /* Transmit immediately */ |
1da177e4 | 3003 | pkt_dev->next_tx_ns = 0; |
16dab72f | 3004 | set_pkt_overhead(pkt_dev); |
222f1806 | 3005 | |
1da177e4 LT |
3006 | strcpy(pkt_dev->result, "Starting"); |
3007 | started++; | |
222f1806 | 3008 | } else |
1da177e4 LT |
3009 | strcpy(pkt_dev->result, "Error starting"); |
3010 | } | |
3011 | if_unlock(t); | |
222f1806 LC |
3012 | if (started) |
3013 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3014 | } |
3015 | ||
3016 | static void pktgen_stop_all_threads_ifs(void) | |
3017 | { | |
cdcdbe0b | 3018 | struct pktgen_thread *t; |
1da177e4 | 3019 | |
25c4e53a | 3020 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3021 | |
6146e6a4 | 3022 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3023 | |
3024 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3025 | t->control |= T_STOP; |
cdcdbe0b | 3026 | |
6146e6a4 | 3027 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3028 | } |
3029 | ||
222f1806 | 3030 | static int thread_is_running(struct pktgen_thread *t) |
1da177e4 | 3031 | { |
c26a8016 | 3032 | struct pktgen_dev *pkt_dev; |
222f1806 | 3033 | int res = 0; |
1da177e4 | 3034 | |
c26a8016 LC |
3035 | list_for_each_entry(pkt_dev, &t->if_list, list) |
3036 | if (pkt_dev->running) { | |
1da177e4 LT |
3037 | res = 1; |
3038 | break; | |
3039 | } | |
222f1806 | 3040 | return res; |
1da177e4 LT |
3041 | } |
3042 | ||
222f1806 | 3043 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3044 | { |
222f1806 | 3045 | if_lock(t); |
1da177e4 | 3046 | |
222f1806 | 3047 | while (thread_is_running(t)) { |
1da177e4 | 3048 | |
222f1806 | 3049 | if_unlock(t); |
1da177e4 | 3050 | |
222f1806 | 3051 | msleep_interruptible(100); |
1da177e4 | 3052 | |
222f1806 LC |
3053 | if (signal_pending(current)) |
3054 | goto signal; | |
3055 | if_lock(t); | |
3056 | } | |
3057 | if_unlock(t); | |
3058 | return 1; | |
3059 | signal: | |
3060 | return 0; | |
1da177e4 LT |
3061 | } |
3062 | ||
3063 | static int pktgen_wait_all_threads_run(void) | |
3064 | { | |
cdcdbe0b | 3065 | struct pktgen_thread *t; |
1da177e4 | 3066 | int sig = 1; |
222f1806 | 3067 | |
6146e6a4 | 3068 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3069 | |
3070 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3071 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3072 | if (sig == 0) |
3073 | break; | |
1da177e4 | 3074 | } |
cdcdbe0b LC |
3075 | |
3076 | if (sig == 0) | |
3077 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3078 | t->control |= (T_STOP); |
cdcdbe0b | 3079 | |
6146e6a4 | 3080 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3081 | return sig; |
3082 | } | |
3083 | ||
3084 | static void pktgen_run_all_threads(void) | |
3085 | { | |
cdcdbe0b | 3086 | struct pktgen_thread *t; |
1da177e4 | 3087 | |
25c4e53a | 3088 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3089 | |
6146e6a4 | 3090 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3091 | |
cdcdbe0b | 3092 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3093 | t->control |= (T_RUN); |
cdcdbe0b | 3094 | |
6146e6a4 | 3095 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3096 | |
222f1806 LC |
3097 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
3098 | ||
1da177e4 LT |
3099 | pktgen_wait_all_threads_run(); |
3100 | } | |
3101 | ||
1da177e4 LT |
3102 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3103 | { | |
222f1806 LC |
3104 | __u64 total_us, bps, mbps, pps, idle; |
3105 | char *p = pkt_dev->result; | |
3106 | ||
3107 | total_us = pkt_dev->stopped_at - pkt_dev->started_at; | |
3108 | ||
3109 | idle = pkt_dev->idle_acc; | |
3110 | ||
3111 | p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n", | |
3112 | (unsigned long long)total_us, | |
3113 | (unsigned long long)(total_us - idle), | |
3114 | (unsigned long long)idle, | |
3115 | (unsigned long long)pkt_dev->sofar, | |
3116 | pkt_dev->cur_pkt_size, nr_frags); | |
3117 | ||
3118 | pps = pkt_dev->sofar * USEC_PER_SEC; | |
3119 | ||
3120 | while ((total_us >> 32) != 0) { | |
3121 | pps >>= 1; | |
3122 | total_us >>= 1; | |
3123 | } | |
3124 | ||
3125 | do_div(pps, total_us); | |
3126 | ||
3127 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3128 | ||
3129 | mbps = bps; | |
3130 | do_div(mbps, 1000000); | |
3131 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3132 | (unsigned long long)pps, | |
3133 | (unsigned long long)mbps, | |
3134 | (unsigned long long)bps, | |
3135 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3136 | } |
1da177e4 LT |
3137 | |
3138 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
3139 | ||
222f1806 | 3140 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3141 | { |
222f1806 | 3142 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3143 | |
222f1806 | 3144 | if (!pkt_dev->running) { |
25a8b254 DM |
3145 | printk(KERN_WARNING "pktgen: interface: %s is already " |
3146 | "stopped\n", pkt_dev->odev->name); | |
222f1806 LC |
3147 | return -EINVAL; |
3148 | } | |
1da177e4 | 3149 | |
222f1806 LC |
3150 | pkt_dev->stopped_at = getCurUs(); |
3151 | pkt_dev->running = 0; | |
1da177e4 | 3152 | |
95ed63f7 | 3153 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3154 | |
222f1806 | 3155 | return 0; |
1da177e4 LT |
3156 | } |
3157 | ||
222f1806 | 3158 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3159 | { |
c26a8016 | 3160 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3161 | |
1da177e4 LT |
3162 | if_lock(t); |
3163 | ||
c26a8016 LC |
3164 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3165 | if (!pkt_dev->running) | |
222f1806 LC |
3166 | continue; |
3167 | if (best == NULL) | |
c26a8016 LC |
3168 | best = pkt_dev; |
3169 | else if (pkt_dev->next_tx_us < best->next_tx_us) | |
3170 | best = pkt_dev; | |
1da177e4 LT |
3171 | } |
3172 | if_unlock(t); | |
222f1806 | 3173 | return best; |
1da177e4 LT |
3174 | } |
3175 | ||
222f1806 LC |
3176 | static void pktgen_stop(struct pktgen_thread *t) |
3177 | { | |
c26a8016 | 3178 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3179 | |
25c4e53a | 3180 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3181 | |
222f1806 | 3182 | if_lock(t); |
1da177e4 | 3183 | |
c26a8016 LC |
3184 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3185 | pktgen_stop_device(pkt_dev); | |
3186 | if (pkt_dev->skb) | |
3187 | kfree_skb(pkt_dev->skb); | |
95ed63f7 | 3188 | |
c26a8016 | 3189 | pkt_dev->skb = NULL; |
95ed63f7 | 3190 | } |
1da177e4 | 3191 | |
222f1806 | 3192 | if_unlock(t); |
1da177e4 LT |
3193 | } |
3194 | ||
95ed63f7 AK |
3195 | /* |
3196 | * one of our devices needs to be removed - find it | |
3197 | * and remove it | |
3198 | */ | |
3199 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3200 | { | |
c26a8016 LC |
3201 | struct list_head *q, *n; |
3202 | struct pktgen_dev *cur; | |
95ed63f7 | 3203 | |
25c4e53a | 3204 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3205 | |
3206 | if_lock(t); | |
3207 | ||
c26a8016 LC |
3208 | list_for_each_safe(q, n, &t->if_list) { |
3209 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3210 | |
222f1806 LC |
3211 | if (!cur->removal_mark) |
3212 | continue; | |
95ed63f7 AK |
3213 | |
3214 | if (cur->skb) | |
3215 | kfree_skb(cur->skb); | |
3216 | cur->skb = NULL; | |
3217 | ||
3218 | pktgen_remove_device(t, cur); | |
3219 | ||
3220 | break; | |
3221 | } | |
3222 | ||
3223 | if_unlock(t); | |
3224 | } | |
3225 | ||
222f1806 | 3226 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3227 | { |
c26a8016 LC |
3228 | struct list_head *q, *n; |
3229 | struct pktgen_dev *cur; | |
222f1806 LC |
3230 | |
3231 | /* Remove all devices, free mem */ | |
95ed63f7 | 3232 | |
25c4e53a | 3233 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3234 | if_lock(t); |
1da177e4 | 3235 | |
c26a8016 LC |
3236 | list_for_each_safe(q, n, &t->if_list) { |
3237 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 AK |
3238 | |
3239 | if (cur->skb) | |
3240 | kfree_skb(cur->skb); | |
3241 | cur->skb = NULL; | |
3242 | ||
1da177e4 LT |
3243 | pktgen_remove_device(t, cur); |
3244 | } | |
3245 | ||
222f1806 | 3246 | if_unlock(t); |
1da177e4 LT |
3247 | } |
3248 | ||
222f1806 | 3249 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3250 | { |
222f1806 | 3251 | /* Remove from the thread list */ |
1da177e4 | 3252 | |
ee74baa7 | 3253 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3254 | |
6146e6a4 | 3255 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3256 | |
cdcdbe0b LC |
3257 | list_del(&t->th_list); |
3258 | ||
6146e6a4 | 3259 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3260 | } |
3261 | ||
3262 | static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev) | |
3263 | { | |
3264 | struct net_device *odev = NULL; | |
3265 | __u64 idle_start = 0; | |
3266 | int ret; | |
3267 | ||
3268 | odev = pkt_dev->odev; | |
222f1806 | 3269 | |
1da177e4 LT |
3270 | if (pkt_dev->delay_us || pkt_dev->delay_ns) { |
3271 | u64 now; | |
3272 | ||
3273 | now = getCurUs(); | |
3274 | if (now < pkt_dev->next_tx_us) | |
3275 | spin(pkt_dev, pkt_dev->next_tx_us); | |
3276 | ||
3277 | /* This is max DELAY, this has special meaning of | |
3278 | * "never transmit" | |
3279 | */ | |
3280 | if (pkt_dev->delay_us == 0x7FFFFFFF) { | |
3281 | pkt_dev->next_tx_us = getCurUs() + pkt_dev->delay_us; | |
3282 | pkt_dev->next_tx_ns = pkt_dev->delay_ns; | |
3283 | goto out; | |
3284 | } | |
3285 | } | |
222f1806 | 3286 | |
f25f4e44 | 3287 | if ((netif_queue_stopped(odev) || |
378be2c0 | 3288 | (pkt_dev->skb && |
668f895a | 3289 | netif_subqueue_stopped(odev, pkt_dev->skb))) || |
378be2c0 | 3290 | need_resched()) { |
1da177e4 | 3291 | idle_start = getCurUs(); |
222f1806 | 3292 | |
1da177e4 LT |
3293 | if (!netif_running(odev)) { |
3294 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3295 | if (pkt_dev->skb) |
3296 | kfree_skb(pkt_dev->skb); | |
3297 | pkt_dev->skb = NULL; | |
1da177e4 LT |
3298 | goto out; |
3299 | } | |
222f1806 | 3300 | if (need_resched()) |
1da177e4 | 3301 | schedule(); |
222f1806 | 3302 | |
1da177e4 | 3303 | pkt_dev->idle_acc += getCurUs() - idle_start; |
222f1806 | 3304 | |
f25f4e44 | 3305 | if (netif_queue_stopped(odev) || |
668f895a | 3306 | netif_subqueue_stopped(odev, pkt_dev->skb)) { |
222f1806 | 3307 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ |
1da177e4 | 3308 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3309 | goto out; /* Try the next interface */ |
1da177e4 LT |
3310 | } |
3311 | } | |
222f1806 | 3312 | |
1da177e4 | 3313 | if (pkt_dev->last_ok || !pkt_dev->skb) { |
222f1806 LC |
3314 | if ((++pkt_dev->clone_count >= pkt_dev->clone_skb) |
3315 | || (!pkt_dev->skb)) { | |
1da177e4 | 3316 | /* build a new pkt */ |
222f1806 | 3317 | if (pkt_dev->skb) |
1da177e4 | 3318 | kfree_skb(pkt_dev->skb); |
222f1806 | 3319 | |
1da177e4 LT |
3320 | pkt_dev->skb = fill_packet(odev, pkt_dev); |
3321 | if (pkt_dev->skb == NULL) { | |
25a8b254 DM |
3322 | printk(KERN_ERR "pktgen: ERROR: couldn't " |
3323 | "allocate skb in fill_packet.\n"); | |
1da177e4 | 3324 | schedule(); |
222f1806 | 3325 | pkt_dev->clone_count--; /* back out increment, OOM */ |
1da177e4 LT |
3326 | goto out; |
3327 | } | |
3328 | pkt_dev->allocated_skbs++; | |
222f1806 | 3329 | pkt_dev->clone_count = 0; /* reset counter */ |
1da177e4 LT |
3330 | } |
3331 | } | |
95ed63f7 | 3332 | |
932ff279 | 3333 | netif_tx_lock_bh(odev); |
f25f4e44 | 3334 | if (!netif_queue_stopped(odev) && |
668f895a | 3335 | !netif_subqueue_stopped(odev, pkt_dev->skb)) { |
1da177e4 LT |
3336 | |
3337 | atomic_inc(&(pkt_dev->skb->users)); | |
222f1806 | 3338 | retry_now: |
1da177e4 LT |
3339 | ret = odev->hard_start_xmit(pkt_dev->skb, odev); |
3340 | if (likely(ret == NETDEV_TX_OK)) { | |
222f1806 | 3341 | pkt_dev->last_ok = 1; |
1da177e4 LT |
3342 | pkt_dev->sofar++; |
3343 | pkt_dev->seq_num++; | |
3344 | pkt_dev->tx_bytes += pkt_dev->cur_pkt_size; | |
222f1806 LC |
3345 | |
3346 | } else if (ret == NETDEV_TX_LOCKED | |
1da177e4 LT |
3347 | && (odev->features & NETIF_F_LLTX)) { |
3348 | cpu_relax(); | |
3349 | goto retry_now; | |
222f1806 LC |
3350 | } else { /* Retry it next time */ |
3351 | ||
1da177e4 | 3352 | atomic_dec(&(pkt_dev->skb->users)); |
222f1806 | 3353 | |
1da177e4 LT |
3354 | if (debug && net_ratelimit()) |
3355 | printk(KERN_INFO "pktgen: Hard xmit error\n"); | |
222f1806 | 3356 | |
1da177e4 LT |
3357 | pkt_dev->errors++; |
3358 | pkt_dev->last_ok = 0; | |
3359 | } | |
3360 | ||
3361 | pkt_dev->next_tx_us = getCurUs(); | |
3362 | pkt_dev->next_tx_ns = 0; | |
3363 | ||
3364 | pkt_dev->next_tx_us += pkt_dev->delay_us; | |
3365 | pkt_dev->next_tx_ns += pkt_dev->delay_ns; | |
3366 | ||
3367 | if (pkt_dev->next_tx_ns > 1000) { | |
3368 | pkt_dev->next_tx_us++; | |
3369 | pkt_dev->next_tx_ns -= 1000; | |
3370 | } | |
222f1806 | 3371 | } |
1da177e4 | 3372 | |
222f1806 LC |
3373 | else { /* Retry it next time */ |
3374 | pkt_dev->last_ok = 0; | |
3375 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ | |
1da177e4 | 3376 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3377 | } |
1da177e4 | 3378 | |
932ff279 | 3379 | netif_tx_unlock_bh(odev); |
222f1806 | 3380 | |
1da177e4 LT |
3381 | /* If pkt_dev->count is zero, then run forever */ |
3382 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
3383 | if (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3384 | idle_start = getCurUs(); | |
3385 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3386 | if (signal_pending(current)) { | |
3387 | break; | |
3388 | } | |
3389 | schedule(); | |
3390 | } | |
3391 | pkt_dev->idle_acc += getCurUs() - idle_start; | |
3392 | } | |
222f1806 | 3393 | |
1da177e4 LT |
3394 | /* Done with this */ |
3395 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3396 | if (pkt_dev->skb) |
3397 | kfree_skb(pkt_dev->skb); | |
3398 | pkt_dev->skb = NULL; | |
222f1806 LC |
3399 | } |
3400 | out:; | |
3401 | } | |
1da177e4 | 3402 | |
4ec93edb | 3403 | /* |
1da177e4 LT |
3404 | * Main loop of the thread goes here |
3405 | */ | |
3406 | ||
ee74baa7 | 3407 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3408 | { |
3409 | DEFINE_WAIT(wait); | |
ee74baa7 | 3410 | struct pktgen_thread *t = arg; |
222f1806 | 3411 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3412 | int cpu = t->cpu; |
1da177e4 | 3413 | |
ee74baa7 | 3414 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3415 | |
3416 | init_waitqueue_head(&t->queue); | |
3417 | ||
ba25f9dc | 3418 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", cpu, task_pid_nr(current)); |
1da177e4 | 3419 | |
ee74baa7 | 3420 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3421 | |
83144186 RW |
3422 | set_freezable(); |
3423 | ||
ee74baa7 DM |
3424 | while (!kthread_should_stop()) { |
3425 | pkt_dev = next_to_run(t); | |
1da177e4 | 3426 | |
ee74baa7 DM |
3427 | if (!pkt_dev && |
3428 | (t->control & (T_STOP | T_RUN | T_REMDEVALL | T_REMDEV)) | |
3429 | == 0) { | |
3430 | prepare_to_wait(&(t->queue), &wait, | |
3431 | TASK_INTERRUPTIBLE); | |
3432 | schedule_timeout(HZ / 10); | |
3433 | finish_wait(&(t->queue), &wait); | |
3434 | } | |
1da177e4 | 3435 | |
ee74baa7 | 3436 | __set_current_state(TASK_RUNNING); |
222f1806 | 3437 | |
b163911f | 3438 | if (pkt_dev) |
1da177e4 LT |
3439 | pktgen_xmit(pkt_dev); |
3440 | ||
222f1806 | 3441 | if (t->control & T_STOP) { |
1da177e4 LT |
3442 | pktgen_stop(t); |
3443 | t->control &= ~(T_STOP); | |
3444 | } | |
3445 | ||
222f1806 | 3446 | if (t->control & T_RUN) { |
1da177e4 LT |
3447 | pktgen_run(t); |
3448 | t->control &= ~(T_RUN); | |
3449 | } | |
3450 | ||
222f1806 | 3451 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3452 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3453 | t->control &= ~(T_REMDEVALL); |
3454 | } | |
3455 | ||
222f1806 | 3456 | if (t->control & T_REMDEV) { |
95ed63f7 | 3457 | pktgen_rem_one_if(t); |
1da177e4 LT |
3458 | t->control &= ~(T_REMDEV); |
3459 | } | |
3460 | ||
09fe3ef4 AM |
3461 | try_to_freeze(); |
3462 | ||
ee74baa7 | 3463 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3464 | } |
1da177e4 | 3465 | |
25c4e53a | 3466 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3467 | pktgen_stop(t); |
1da177e4 | 3468 | |
25c4e53a | 3469 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3470 | pktgen_rem_all_ifs(t); |
1da177e4 | 3471 | |
25c4e53a | 3472 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3473 | pktgen_rem_thread(t); |
cdcdbe0b | 3474 | |
ee74baa7 | 3475 | return 0; |
1da177e4 LT |
3476 | } |
3477 | ||
222f1806 LC |
3478 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3479 | const char *ifname) | |
1da177e4 | 3480 | { |
c26a8016 | 3481 | struct pktgen_dev *p, *pkt_dev = NULL; |
222f1806 LC |
3482 | if_lock(t); |
3483 | ||
c26a8016 | 3484 | list_for_each_entry(p, &t->if_list, list) |
39df232f | 3485 | if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) { |
c26a8016 | 3486 | pkt_dev = p; |
222f1806 LC |
3487 | break; |
3488 | } | |
222f1806 LC |
3489 | |
3490 | if_unlock(t); | |
25c4e53a | 3491 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3492 | return pkt_dev; |
1da177e4 LT |
3493 | } |
3494 | ||
4ec93edb YH |
3495 | /* |
3496 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3497 | */ |
3498 | ||
222f1806 LC |
3499 | static int add_dev_to_thread(struct pktgen_thread *t, |
3500 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3501 | { |
3502 | int rv = 0; | |
222f1806 LC |
3503 | |
3504 | if_lock(t); | |
3505 | ||
3506 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3507 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3508 | "to a thread.\n"); | |
222f1806 LC |
3509 | rv = -EBUSY; |
3510 | goto out; | |
3511 | } | |
c26a8016 LC |
3512 | |
3513 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3514 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3515 | pkt_dev->running = 0; |
3516 | ||
222f1806 LC |
3517 | out: |
3518 | if_unlock(t); | |
3519 | return rv; | |
1da177e4 LT |
3520 | } |
3521 | ||
3522 | /* Called under thread lock */ | |
3523 | ||
222f1806 | 3524 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3525 | { |
222f1806 | 3526 | struct pktgen_dev *pkt_dev; |
39df232f | 3527 | int err; |
222f1806 | 3528 | |
1da177e4 LT |
3529 | /* We don't allow a device to be on several threads */ |
3530 | ||
d50a6b56 SH |
3531 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3532 | if (pkt_dev) { | |
25a8b254 | 3533 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3534 | return -EBUSY; |
3535 | } | |
d50a6b56 SH |
3536 | |
3537 | pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL); | |
3538 | if (!pkt_dev) | |
3539 | return -ENOMEM; | |
3540 | ||
222f1806 | 3541 | pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 SH |
3542 | if (pkt_dev->flows == NULL) { |
3543 | kfree(pkt_dev); | |
3544 | return -ENOMEM; | |
3545 | } | |
222f1806 | 3546 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3547 | |
95ed63f7 | 3548 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3549 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3550 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3551 | pkt_dev->nfrags = 0; | |
3552 | pkt_dev->clone_skb = pg_clone_skb_d; | |
3553 | pkt_dev->delay_us = pg_delay_d / 1000; | |
3554 | pkt_dev->delay_ns = pg_delay_d % 1000; | |
3555 | pkt_dev->count = pg_count_d; | |
3556 | pkt_dev->sofar = 0; | |
222f1806 | 3557 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3558 | pkt_dev->udp_src_max = 9; |
3559 | pkt_dev->udp_dst_min = 9; | |
3560 | pkt_dev->udp_dst_max = 9; | |
3561 | ||
34954ddc FF |
3562 | pkt_dev->vlan_p = 0; |
3563 | pkt_dev->vlan_cfi = 0; | |
3564 | pkt_dev->vlan_id = 0xffff; | |
3565 | pkt_dev->svlan_p = 0; | |
3566 | pkt_dev->svlan_cfi = 0; | |
3567 | pkt_dev->svlan_id = 0xffff; | |
3568 | ||
39df232f SH |
3569 | err = pktgen_setup_dev(pkt_dev, ifname); |
3570 | if (err) | |
3571 | goto out1; | |
d50a6b56 | 3572 | |
25296d59 WC |
3573 | pkt_dev->entry = proc_create(ifname, 0600, |
3574 | pg_proc_dir, &pktgen_if_fops); | |
39df232f | 3575 | if (!pkt_dev->entry) { |
25a8b254 | 3576 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3577 | PG_PROC_DIR, ifname); |
39df232f SH |
3578 | err = -EINVAL; |
3579 | goto out2; | |
d50a6b56 | 3580 | } |
39df232f | 3581 | pkt_dev->entry->data = pkt_dev; |
a553e4a6 JHS |
3582 | #ifdef CONFIG_XFRM |
3583 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3584 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3585 | #endif | |
d50a6b56 SH |
3586 | |
3587 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3588 | out2: |
3589 | dev_put(pkt_dev->odev); | |
3590 | out1: | |
a553e4a6 JHS |
3591 | #ifdef CONFIG_XFRM |
3592 | free_SAs(pkt_dev); | |
3593 | #endif | |
39df232f SH |
3594 | if (pkt_dev->flows) |
3595 | vfree(pkt_dev->flows); | |
3596 | kfree(pkt_dev); | |
3597 | return err; | |
1da177e4 LT |
3598 | } |
3599 | ||
ee74baa7 | 3600 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3601 | { |
cdcdbe0b | 3602 | struct pktgen_thread *t; |
d50a6b56 | 3603 | struct proc_dir_entry *pe; |
ee74baa7 | 3604 | struct task_struct *p; |
222f1806 LC |
3605 | |
3606 | t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL); | |
3607 | if (!t) { | |
25a8b254 DM |
3608 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3609 | "create new thread.\n"); | |
222f1806 LC |
3610 | return -ENOMEM; |
3611 | } | |
3612 | ||
222f1806 | 3613 | spin_lock_init(&t->if_lock); |
1da177e4 | 3614 | t->cpu = cpu; |
222f1806 | 3615 | |
ee74baa7 DM |
3616 | INIT_LIST_HEAD(&t->if_list); |
3617 | ||
3618 | list_add_tail(&t->th_list, &pktgen_threads); | |
3619 | ||
3620 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3621 | if (IS_ERR(p)) { | |
25a8b254 DM |
3622 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3623 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3624 | list_del(&t->th_list); |
3625 | kfree(t); | |
3626 | return PTR_ERR(p); | |
3627 | } | |
3628 | kthread_bind(p, cpu); | |
3629 | t->tsk = p; | |
3630 | ||
25296d59 | 3631 | pe = proc_create(t->tsk->comm, 0600, pg_proc_dir, &pktgen_thread_fops); |
222f1806 | 3632 | if (!pe) { |
25a8b254 | 3633 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3634 | PG_PROC_DIR, t->tsk->comm); |
3635 | kthread_stop(p); | |
3636 | list_del(&t->th_list); | |
222f1806 LC |
3637 | kfree(t); |
3638 | return -EINVAL; | |
3639 | } | |
d50a6b56 | 3640 | |
d50a6b56 | 3641 | pe->data = t; |
1da177e4 | 3642 | |
ee74baa7 | 3643 | wake_up_process(p); |
1da177e4 LT |
3644 | |
3645 | return 0; | |
3646 | } | |
3647 | ||
4ec93edb YH |
3648 | /* |
3649 | * Removes a device from the thread if_list. | |
1da177e4 | 3650 | */ |
222f1806 LC |
3651 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3652 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3653 | { |
c26a8016 LC |
3654 | struct list_head *q, *n; |
3655 | struct pktgen_dev *p; | |
1da177e4 | 3656 | |
c26a8016 LC |
3657 | list_for_each_safe(q, n, &t->if_list) { |
3658 | p = list_entry(q, struct pktgen_dev, list); | |
3659 | if (p == pkt_dev) | |
3660 | list_del(&p->list); | |
1da177e4 LT |
3661 | } |
3662 | } | |
3663 | ||
222f1806 LC |
3664 | static int pktgen_remove_device(struct pktgen_thread *t, |
3665 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3666 | { |
3667 | ||
25c4e53a | 3668 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3669 | |
222f1806 | 3670 | if (pkt_dev->running) { |
25a8b254 DM |
3671 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3672 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3673 | pktgen_stop_device(pkt_dev); |
3674 | } | |
3675 | ||
3676 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3677 | |
3678 | if (pkt_dev->odev) { | |
3679 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3680 | pkt_dev->odev = NULL; |
3681 | } | |
3682 | ||
1da177e4 LT |
3683 | /* And update the thread if_list */ |
3684 | ||
3685 | _rem_dev_from_if_list(t, pkt_dev); | |
3686 | ||
39df232f SH |
3687 | if (pkt_dev->entry) |
3688 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3689 | |
a553e4a6 JHS |
3690 | #ifdef CONFIG_XFRM |
3691 | free_SAs(pkt_dev); | |
3692 | #endif | |
1da177e4 LT |
3693 | if (pkt_dev->flows) |
3694 | vfree(pkt_dev->flows); | |
3695 | kfree(pkt_dev); | |
222f1806 | 3696 | return 0; |
1da177e4 LT |
3697 | } |
3698 | ||
222f1806 | 3699 | static int __init pg_init(void) |
1da177e4 LT |
3700 | { |
3701 | int cpu; | |
d50a6b56 | 3702 | struct proc_dir_entry *pe; |
1da177e4 | 3703 | |
25a8b254 | 3704 | printk(KERN_INFO "%s", version); |
1da177e4 | 3705 | |
457c4cbc | 3706 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3707 | if (!pg_proc_dir) |
3708 | return -ENODEV; | |
3709 | pg_proc_dir->owner = THIS_MODULE; | |
1da177e4 | 3710 | |
25296d59 | 3711 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3712 | if (pe == NULL) { |
25a8b254 DM |
3713 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3714 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3715 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3716 | return -EINVAL; |
3717 | } | |
1da177e4 | 3718 | |
222f1806 | 3719 | pe->data = NULL; |
1da177e4 LT |
3720 | |
3721 | /* Register us to receive netdevice events */ | |
3722 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3723 | |
670c02c2 | 3724 | for_each_online_cpu(cpu) { |
8024bb24 | 3725 | int err; |
1da177e4 | 3726 | |
ee74baa7 | 3727 | err = pktgen_create_thread(cpu); |
8024bb24 | 3728 | if (err) |
25a8b254 DM |
3729 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3730 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3731 | } |
8024bb24 LC |
3732 | |
3733 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3734 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3735 | "all threads\n"); | |
8024bb24 LC |
3736 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3737 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3738 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3739 | return -ENODEV; |
3740 | } | |
3741 | ||
222f1806 | 3742 | return 0; |
1da177e4 LT |
3743 | } |
3744 | ||
3745 | static void __exit pg_cleanup(void) | |
3746 | { | |
cdcdbe0b LC |
3747 | struct pktgen_thread *t; |
3748 | struct list_head *q, *n; | |
1da177e4 LT |
3749 | wait_queue_head_t queue; |
3750 | init_waitqueue_head(&queue); | |
3751 | ||
222f1806 | 3752 | /* Stop all interfaces & threads */ |
1da177e4 | 3753 | |
cdcdbe0b LC |
3754 | list_for_each_safe(q, n, &pktgen_threads) { |
3755 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3756 | kthread_stop(t->tsk); |
3757 | kfree(t); | |
222f1806 | 3758 | } |
1da177e4 | 3759 | |
222f1806 | 3760 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3761 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3762 | ||
222f1806 | 3763 | /* Clean up proc file system */ |
d50a6b56 | 3764 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3765 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3766 | } |
3767 | ||
1da177e4 LT |
3768 | module_init(pg_init); |
3769 | module_exit(pg_cleanup); | |
3770 | ||
3771 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se"); | |
3772 | MODULE_DESCRIPTION("Packet Generator tool"); | |
3773 | MODULE_LICENSE("GPL"); | |
3774 | module_param(pg_count_d, int, 0); | |
3775 | module_param(pg_delay_d, int, 0); | |
3776 | module_param(pg_clone_skb_d, int, 0); | |
3777 | module_param(debug, int, 0); |