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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 | ||
e6fce5b9 | 171 | #define VERSION "pktgen v2.70: 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 */ |
e6fce5b9 | 192 | #define F_QUEUE_MAP_CPU (1<<14) /* queue map mirrors smp_processor_id() */ |
1da177e4 LT |
193 | |
194 | /* Thread control flag bits */ | |
222f1806 LC |
195 | #define T_TERMINATE (1<<0) |
196 | #define T_STOP (1<<1) /* Stop run */ | |
197 | #define T_RUN (1<<2) /* Start run */ | |
198 | #define T_REMDEVALL (1<<3) /* Remove all devs */ | |
199 | #define T_REMDEV (1<<4) /* Remove one dev */ | |
1da177e4 | 200 | |
1da177e4 LT |
201 | /* If lock -- can be removed after some work */ |
202 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
203 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
204 | ||
205 | /* Used to help with determining the pkts on receive */ | |
206 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
207 | #define PG_PROC_DIR "pktgen" |
208 | #define PGCTRL "pgctrl" | |
209 | static struct proc_dir_entry *pg_proc_dir = NULL; | |
1da177e4 LT |
210 | |
211 | #define MAX_CFLOWS 65536 | |
212 | ||
34954ddc FF |
213 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
214 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
215 | ||
222f1806 | 216 | struct flow_state { |
252e3346 | 217 | __be32 cur_daddr; |
222f1806 | 218 | int count; |
a553e4a6 JHS |
219 | #ifdef CONFIG_XFRM |
220 | struct xfrm_state *x; | |
221 | #endif | |
007a531b | 222 | __u32 flags; |
1da177e4 LT |
223 | }; |
224 | ||
007a531b JHS |
225 | /* flow flag bits */ |
226 | #define F_INIT (1<<0) /* flow has been initialized */ | |
227 | ||
1da177e4 | 228 | struct pktgen_dev { |
1da177e4 LT |
229 | /* |
230 | * Try to keep frequent/infrequent used vars. separated. | |
231 | */ | |
39df232f SH |
232 | struct proc_dir_entry *entry; /* proc file */ |
233 | struct pktgen_thread *pg_thread;/* the owner */ | |
c26a8016 | 234 | struct list_head list; /* Used for chaining in the thread's run-queue */ |
1da177e4 | 235 | |
222f1806 | 236 | int running; /* if this changes to false, the test will stop */ |
1da177e4 | 237 | |
222f1806 LC |
238 | /* If min != max, then we will either do a linear iteration, or |
239 | * we will do a random selection from within the range. | |
240 | */ | |
241 | __u32 flags; | |
95ed63f7 AK |
242 | int removal_mark; /* non-zero => the device is marked for |
243 | * removal by worker thread */ | |
1da177e4 | 244 | |
222f1806 LC |
245 | int min_pkt_size; /* = ETH_ZLEN; */ |
246 | int max_pkt_size; /* = ETH_ZLEN; */ | |
16dab72f | 247 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 | 248 | int nfrags; |
fd29cf72 SH |
249 | u64 delay; /* nano-seconds */ |
250 | ||
222f1806 LC |
251 | __u64 count; /* Default No packets to send */ |
252 | __u64 sofar; /* How many pkts we've sent so far */ | |
253 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
254 | __u64 errors; /* Errors when trying to transmit, pkts will be re-sent */ | |
255 | ||
256 | /* runtime counters relating to clone_skb */ | |
222f1806 LC |
257 | |
258 | __u64 allocated_skbs; | |
259 | __u32 clone_count; | |
260 | int last_ok; /* Was last skb sent? | |
261 | * Or a failed transmit of some sort? This will keep | |
262 | * sequence numbers in order, for example. | |
263 | */ | |
fd29cf72 SH |
264 | ktime_t next_tx; |
265 | ktime_t started_at; | |
266 | ktime_t stopped_at; | |
267 | u64 idle_acc; /* nano-seconds */ | |
268 | ||
222f1806 LC |
269 | __u32 seq_num; |
270 | ||
271 | int clone_skb; /* Use multiple SKBs during packet gen. If this number | |
272 | * is greater than 1, then that many copies of the same | |
273 | * packet will be sent before a new packet is allocated. | |
274 | * For instance, if you want to send 1024 identical packets | |
275 | * before creating a new packet, set clone_skb to 1024. | |
276 | */ | |
277 | ||
278 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
279 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
280 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
281 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
282 | ||
283 | struct in6_addr in6_saddr; | |
284 | struct in6_addr in6_daddr; | |
285 | struct in6_addr cur_in6_daddr; | |
286 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 287 | /* For ranges */ |
222f1806 LC |
288 | struct in6_addr min_in6_daddr; |
289 | struct in6_addr max_in6_daddr; | |
290 | struct in6_addr min_in6_saddr; | |
291 | struct in6_addr max_in6_saddr; | |
292 | ||
293 | /* If we're doing ranges, random or incremental, then this | |
294 | * defines the min/max for those ranges. | |
295 | */ | |
252e3346 AV |
296 | __be32 saddr_min; /* inclusive, source IP address */ |
297 | __be32 saddr_max; /* exclusive, source IP address */ | |
298 | __be32 daddr_min; /* inclusive, dest IP address */ | |
299 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
300 | |
301 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
302 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
303 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
304 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
305 | ||
1ca7768c FF |
306 | /* DSCP + ECN */ |
307 | __u8 tos; /* six most significant bits of (former) IPv4 TOS are for dscp codepoint */ | |
308 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 (see RFC 3260, sec. 4) */ | |
309 | ||
ca6549af SW |
310 | /* MPLS */ |
311 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
312 | __be32 labels[MAX_MPLS_LABELS]; | |
313 | ||
34954ddc FF |
314 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
315 | __u8 vlan_p; | |
316 | __u8 vlan_cfi; | |
317 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
318 | ||
319 | __u8 svlan_p; | |
320 | __u8 svlan_cfi; | |
321 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
322 | ||
222f1806 LC |
323 | __u32 src_mac_count; /* How many MACs to iterate through */ |
324 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
325 | ||
326 | unsigned char dst_mac[ETH_ALEN]; | |
327 | unsigned char src_mac[ETH_ALEN]; | |
328 | ||
329 | __u32 cur_dst_mac_offset; | |
330 | __u32 cur_src_mac_offset; | |
252e3346 AV |
331 | __be32 cur_saddr; |
332 | __be32 cur_daddr; | |
222f1806 LC |
333 | __u16 cur_udp_dst; |
334 | __u16 cur_udp_src; | |
45b270f8 | 335 | __u16 cur_queue_map; |
222f1806 LC |
336 | __u32 cur_pkt_size; |
337 | ||
338 | __u8 hh[14]; | |
339 | /* = { | |
340 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
341 | ||
342 | We fill in SRC address later | |
343 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
344 | 0x08, 0x00 | |
345 | }; | |
346 | */ | |
347 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
348 | ||
349 | struct sk_buff *skb; /* skb we are to transmit next, mainly used for when we | |
350 | * are transmitting the same one multiple times | |
351 | */ | |
352 | struct net_device *odev; /* The out-going device. Note that the device should | |
353 | * have it's pg_info pointer pointing back to this | |
354 | * device. This will be set when the user specifies | |
355 | * the out-going device name (not when the inject is | |
356 | * started as it used to do.) | |
357 | */ | |
1da177e4 | 358 | struct flow_state *flows; |
222f1806 LC |
359 | unsigned cflows; /* Concurrent flows (config) */ |
360 | unsigned lflow; /* Flow length (config) */ | |
361 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 362 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
363 | |
364 | u16 queue_map_min; | |
365 | u16 queue_map_max; | |
366 | ||
a553e4a6 JHS |
367 | #ifdef CONFIG_XFRM |
368 | __u8 ipsmode; /* IPSEC mode (config) */ | |
369 | __u8 ipsproto; /* IPSEC type (config) */ | |
370 | #endif | |
39df232f | 371 | char result[512]; |
1da177e4 LT |
372 | }; |
373 | ||
374 | struct pktgen_hdr { | |
252e3346 AV |
375 | __be32 pgh_magic; |
376 | __be32 seq_num; | |
377 | __be32 tv_sec; | |
378 | __be32 tv_usec; | |
1da177e4 LT |
379 | }; |
380 | ||
381 | struct pktgen_thread { | |
222f1806 | 382 | spinlock_t if_lock; |
c26a8016 | 383 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 384 | struct list_head th_list; |
ee74baa7 | 385 | struct task_struct *tsk; |
222f1806 | 386 | char result[512]; |
222f1806 LC |
387 | |
388 | /* Field for thread to receive "posted" events terminate, stop ifs etc. */ | |
389 | ||
390 | u32 control; | |
1da177e4 LT |
391 | int cpu; |
392 | ||
222f1806 | 393 | wait_queue_head_t queue; |
d3ede327 | 394 | struct completion start_done; |
1da177e4 LT |
395 | }; |
396 | ||
397 | #define REMOVE 1 | |
398 | #define FIND 0 | |
399 | ||
fd29cf72 | 400 | static inline ktime_t ktime_now(void) |
1da177e4 | 401 | { |
fd29cf72 SH |
402 | struct timespec ts; |
403 | ktime_get_ts(&ts); | |
404 | ||
405 | return timespec_to_ktime(ts); | |
1da177e4 LT |
406 | } |
407 | ||
fd29cf72 SH |
408 | /* This works even if 32 bit because of careful byte order choice */ |
409 | static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2) | |
1da177e4 | 410 | { |
fd29cf72 | 411 | return cmp1.tv64 < cmp2.tv64; |
1da177e4 LT |
412 | } |
413 | ||
65c5b786 | 414 | static const char version[] __initconst = VERSION; |
1da177e4 | 415 | |
222f1806 LC |
416 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
417 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
418 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
419 | const char *ifname); | |
1da177e4 LT |
420 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
421 | static void pktgen_run_all_threads(void); | |
eb37b41c | 422 | static void pktgen_reset_all_threads(void); |
1da177e4 | 423 | static void pktgen_stop_all_threads_ifs(void); |
3bda06a3 | 424 | |
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. */ | |
65c5b786 SH |
432 | static int pg_count_d __read_mostly = 1000; |
433 | static int pg_delay_d __read_mostly; | |
434 | static int pg_clone_skb_d __read_mostly; | |
435 | static int debug __read_mostly; | |
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 | ||
eb37b41c JB |
481 | else if (!strcmp(data, "reset")) |
482 | pktgen_reset_all_threads(); | |
483 | ||
222f1806 | 484 | else |
25a8b254 | 485 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
486 | |
487 | err = count; | |
488 | ||
222f1806 LC |
489 | out: |
490 | return err; | |
1da177e4 LT |
491 | } |
492 | ||
d50a6b56 SH |
493 | static int pgctrl_open(struct inode *inode, struct file *file) |
494 | { | |
495 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
496 | } | |
497 | ||
9a32144e | 498 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
499 | .owner = THIS_MODULE, |
500 | .open = pgctrl_open, | |
501 | .read = seq_read, | |
502 | .llseek = seq_lseek, | |
503 | .write = pgctrl_write, | |
504 | .release = single_release, | |
d50a6b56 SH |
505 | }; |
506 | ||
507 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 508 | { |
648fda74 | 509 | const struct pktgen_dev *pkt_dev = seq->private; |
fd29cf72 SH |
510 | ktime_t stopped; |
511 | u64 idle; | |
222f1806 LC |
512 | |
513 | seq_printf(seq, | |
514 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
515 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
516 | pkt_dev->max_pkt_size); | |
517 | ||
518 | seq_printf(seq, | |
fd29cf72 SH |
519 | " frags: %d delay: %llu clone_skb: %d ifname: %s\n", |
520 | pkt_dev->nfrags, (unsigned long long) pkt_dev->delay, | |
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 | |
e174961c JB |
555 | seq_printf(seq, "%pM ", |
556 | 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: "); | |
e174961c | 560 | seq_printf(seq, "%pM\n", 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 | ||
e6fce5b9 RO |
623 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
624 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
625 | ||
007a531b JHS |
626 | if (pkt_dev->cflows) { |
627 | if (pkt_dev->flags & F_FLOW_SEQ) | |
628 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
629 | else | |
630 | seq_printf(seq, "FLOW_RND "); | |
631 | } | |
632 | ||
a553e4a6 JHS |
633 | #ifdef CONFIG_XFRM |
634 | if (pkt_dev->flags & F_IPSEC_ON) | |
635 | seq_printf(seq, "IPSEC "); | |
636 | #endif | |
637 | ||
222f1806 LC |
638 | if (pkt_dev->flags & F_MACSRC_RND) |
639 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 640 | |
222f1806 LC |
641 | if (pkt_dev->flags & F_MACDST_RND) |
642 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 643 | |
34954ddc FF |
644 | if (pkt_dev->flags & F_VID_RND) |
645 | seq_printf(seq, "VID_RND "); | |
646 | ||
647 | if (pkt_dev->flags & F_SVID_RND) | |
648 | seq_printf(seq, "SVID_RND "); | |
649 | ||
222f1806 LC |
650 | seq_puts(seq, "\n"); |
651 | ||
fd29cf72 SH |
652 | /* not really stopped, more like last-running-at */ |
653 | stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at; | |
654 | idle = pkt_dev->idle_acc; | |
655 | do_div(idle, NSEC_PER_USEC); | |
1da177e4 | 656 | |
222f1806 | 657 | seq_printf(seq, |
fd29cf72 | 658 | "Current:\n pkts-sofar: %llu errors: %llu\n", |
222f1806 | 659 | (unsigned long long)pkt_dev->sofar, |
fd29cf72 SH |
660 | (unsigned long long)pkt_dev->errors); |
661 | ||
662 | seq_printf(seq, | |
663 | " started: %lluus stopped: %lluus idle: %lluus\n", | |
664 | (unsigned long long) ktime_to_us(pkt_dev->started_at), | |
665 | (unsigned long long) ktime_to_us(stopped), | |
666 | (unsigned long long) idle); | |
1da177e4 | 667 | |
222f1806 LC |
668 | seq_printf(seq, |
669 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
670 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
671 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 672 | |
222f1806 | 673 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 674 | char b1[128], b2[128]; |
222f1806 LC |
675 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
676 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
677 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
678 | } else | |
679 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 680 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 681 | |
222f1806 | 682 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 683 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 684 | |
45b270f8 RO |
685 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
686 | ||
222f1806 | 687 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
688 | |
689 | if (pkt_dev->result[0]) | |
222f1806 | 690 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 691 | else |
222f1806 | 692 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 693 | |
d50a6b56 | 694 | return 0; |
1da177e4 LT |
695 | } |
696 | ||
ca6549af | 697 | |
1ca7768c | 698 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, __u32 *num) |
ca6549af SW |
699 | { |
700 | int i = 0; | |
701 | *num = 0; | |
702 | ||
e71a4783 | 703 | for (; i < maxlen; i++) { |
ca6549af SW |
704 | char c; |
705 | *num <<= 4; | |
706 | if (get_user(c, &user_buffer[i])) | |
707 | return -EFAULT; | |
708 | if ((c >= '0') && (c <= '9')) | |
709 | *num |= c - '0'; | |
710 | else if ((c >= 'a') && (c <= 'f')) | |
711 | *num |= c - 'a' + 10; | |
712 | else if ((c >= 'A') && (c <= 'F')) | |
713 | *num |= c - 'A' + 10; | |
714 | else | |
715 | break; | |
716 | } | |
717 | return i; | |
718 | } | |
719 | ||
222f1806 LC |
720 | static int count_trail_chars(const char __user * user_buffer, |
721 | unsigned int maxlen) | |
1da177e4 LT |
722 | { |
723 | int i; | |
724 | ||
725 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
726 | char c; |
727 | if (get_user(c, &user_buffer[i])) | |
728 | return -EFAULT; | |
729 | switch (c) { | |
1da177e4 LT |
730 | case '\"': |
731 | case '\n': | |
732 | case '\r': | |
733 | case '\t': | |
734 | case ' ': | |
735 | case '=': | |
736 | break; | |
737 | default: | |
738 | goto done; | |
3ff50b79 | 739 | } |
1da177e4 LT |
740 | } |
741 | done: | |
742 | return i; | |
743 | } | |
744 | ||
222f1806 LC |
745 | static unsigned long num_arg(const char __user * user_buffer, |
746 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
747 | { |
748 | int i = 0; | |
749 | *num = 0; | |
222f1806 LC |
750 | |
751 | for (; i < maxlen; i++) { | |
752 | char c; | |
753 | if (get_user(c, &user_buffer[i])) | |
754 | return -EFAULT; | |
755 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 756 | *num *= 10; |
222f1806 | 757 | *num += c - '0'; |
1da177e4 LT |
758 | } else |
759 | break; | |
760 | } | |
761 | return i; | |
762 | } | |
763 | ||
222f1806 | 764 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
765 | { |
766 | int i = 0; | |
767 | ||
222f1806 LC |
768 | for (; i < maxlen; i++) { |
769 | char c; | |
770 | if (get_user(c, &user_buffer[i])) | |
771 | return -EFAULT; | |
772 | switch (c) { | |
1da177e4 LT |
773 | case '\"': |
774 | case '\n': | |
775 | case '\r': | |
776 | case '\t': | |
777 | case ' ': | |
778 | goto done_str; | |
779 | break; | |
780 | default: | |
781 | break; | |
3ff50b79 | 782 | } |
1da177e4 LT |
783 | } |
784 | done_str: | |
1da177e4 LT |
785 | return i; |
786 | } | |
787 | ||
ca6549af SW |
788 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
789 | { | |
790 | unsigned n = 0; | |
791 | char c; | |
792 | ssize_t i = 0; | |
793 | int len; | |
794 | ||
795 | pkt_dev->nr_labels = 0; | |
796 | do { | |
797 | __u32 tmp; | |
1ca7768c | 798 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
799 | if (len <= 0) |
800 | return len; | |
801 | pkt_dev->labels[n] = htonl(tmp); | |
802 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
803 | pkt_dev->flags |= F_MPLS_RND; | |
804 | i += len; | |
805 | if (get_user(c, &buffer[i])) | |
806 | return -EFAULT; | |
807 | i++; | |
808 | n++; | |
809 | if (n >= MAX_MPLS_LABELS) | |
810 | return -E2BIG; | |
e71a4783 | 811 | } while (c == ','); |
ca6549af SW |
812 | |
813 | pkt_dev->nr_labels = n; | |
814 | return i; | |
815 | } | |
816 | ||
222f1806 LC |
817 | static ssize_t pktgen_if_write(struct file *file, |
818 | const char __user * user_buffer, size_t count, | |
819 | loff_t * offset) | |
1da177e4 | 820 | { |
222f1806 LC |
821 | struct seq_file *seq = (struct seq_file *)file->private_data; |
822 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
823 | int i = 0, max, len; |
824 | char name[16], valstr[32]; | |
825 | unsigned long value = 0; | |
222f1806 LC |
826 | char *pg_result = NULL; |
827 | int tmp = 0; | |
1da177e4 | 828 | char buf[128]; |
222f1806 LC |
829 | |
830 | pg_result = &(pkt_dev->result[0]); | |
831 | ||
1da177e4 | 832 | if (count < 1) { |
25a8b254 | 833 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
834 | return -EINVAL; |
835 | } | |
222f1806 | 836 | |
1da177e4 LT |
837 | max = count - i; |
838 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 839 | if (tmp < 0) { |
25a8b254 | 840 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 841 | return tmp; |
1da177e4 | 842 | } |
222f1806 LC |
843 | i += tmp; |
844 | ||
1da177e4 LT |
845 | /* Read variable name */ |
846 | ||
847 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 LC |
848 | if (len < 0) { |
849 | return len; | |
850 | } | |
1da177e4 | 851 | memset(name, 0, sizeof(name)); |
222f1806 | 852 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
853 | return -EFAULT; |
854 | i += len; | |
222f1806 LC |
855 | |
856 | max = count - i; | |
1da177e4 | 857 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
858 | if (len < 0) |
859 | return len; | |
860 | ||
1da177e4 LT |
861 | i += len; |
862 | ||
863 | if (debug) { | |
222f1806 LC |
864 | char tb[count + 1]; |
865 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 866 | return -EFAULT; |
222f1806 | 867 | tb[count] = 0; |
25a8b254 | 868 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
869 | (unsigned long)count, tb); |
870 | } | |
1da177e4 LT |
871 | |
872 | if (!strcmp(name, "min_pkt_size")) { | |
873 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
874 | if (len < 0) { |
875 | return len; | |
876 | } | |
1da177e4 | 877 | i += len; |
222f1806 LC |
878 | if (value < 14 + 20 + 8) |
879 | value = 14 + 20 + 8; | |
880 | if (value != pkt_dev->min_pkt_size) { | |
881 | pkt_dev->min_pkt_size = value; | |
882 | pkt_dev->cur_pkt_size = value; | |
883 | } | |
884 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
885 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
886 | return count; |
887 | } | |
888 | ||
222f1806 | 889 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 890 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
891 | if (len < 0) { |
892 | return len; | |
893 | } | |
1da177e4 | 894 | i += len; |
222f1806 LC |
895 | if (value < 14 + 20 + 8) |
896 | value = 14 + 20 + 8; | |
897 | if (value != pkt_dev->max_pkt_size) { | |
898 | pkt_dev->max_pkt_size = value; | |
899 | pkt_dev->cur_pkt_size = value; | |
900 | } | |
901 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
902 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
903 | return count; |
904 | } | |
905 | ||
222f1806 | 906 | /* Shortcut for min = max */ |
1da177e4 LT |
907 | |
908 | if (!strcmp(name, "pkt_size")) { | |
909 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
910 | if (len < 0) { |
911 | return len; | |
912 | } | |
1da177e4 | 913 | i += len; |
222f1806 LC |
914 | if (value < 14 + 20 + 8) |
915 | value = 14 + 20 + 8; | |
916 | if (value != pkt_dev->min_pkt_size) { | |
917 | pkt_dev->min_pkt_size = value; | |
918 | pkt_dev->max_pkt_size = value; | |
919 | pkt_dev->cur_pkt_size = value; | |
920 | } | |
1da177e4 LT |
921 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
922 | return count; | |
923 | } | |
924 | ||
222f1806 | 925 | if (!strcmp(name, "debug")) { |
1da177e4 | 926 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
927 | if (len < 0) { |
928 | return len; | |
929 | } | |
1da177e4 | 930 | i += len; |
222f1806 | 931 | debug = value; |
1da177e4 LT |
932 | sprintf(pg_result, "OK: debug=%u", debug); |
933 | return count; | |
934 | } | |
935 | ||
222f1806 | 936 | if (!strcmp(name, "frags")) { |
1da177e4 | 937 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
938 | if (len < 0) { |
939 | return len; | |
940 | } | |
1da177e4 LT |
941 | i += len; |
942 | pkt_dev->nfrags = value; | |
943 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
944 | return count; | |
945 | } | |
946 | if (!strcmp(name, "delay")) { | |
947 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
948 | if (len < 0) { |
949 | return len; | |
950 | } | |
1da177e4 | 951 | i += len; |
fd29cf72 SH |
952 | if (value == 0x7FFFFFFF) |
953 | pkt_dev->delay = ULLONG_MAX; | |
954 | else | |
955 | pkt_dev->delay = (u64)value * NSEC_PER_USEC; | |
956 | ||
957 | sprintf(pg_result, "OK: delay=%llu", | |
958 | (unsigned long long) pkt_dev->delay); | |
1da177e4 LT |
959 | return count; |
960 | } | |
222f1806 | 961 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 962 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
963 | if (len < 0) { |
964 | return len; | |
965 | } | |
1da177e4 | 966 | i += len; |
222f1806 LC |
967 | if (value != pkt_dev->udp_src_min) { |
968 | pkt_dev->udp_src_min = value; | |
969 | pkt_dev->cur_udp_src = value; | |
970 | } | |
1da177e4 LT |
971 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
972 | return count; | |
973 | } | |
222f1806 | 974 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 975 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
976 | if (len < 0) { |
977 | return len; | |
978 | } | |
1da177e4 | 979 | i += len; |
222f1806 LC |
980 | if (value != pkt_dev->udp_dst_min) { |
981 | pkt_dev->udp_dst_min = value; | |
982 | pkt_dev->cur_udp_dst = value; | |
983 | } | |
1da177e4 LT |
984 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
985 | return count; | |
986 | } | |
222f1806 | 987 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 988 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
989 | if (len < 0) { |
990 | return len; | |
991 | } | |
1da177e4 | 992 | i += len; |
222f1806 LC |
993 | if (value != pkt_dev->udp_src_max) { |
994 | pkt_dev->udp_src_max = value; | |
995 | pkt_dev->cur_udp_src = value; | |
996 | } | |
1da177e4 LT |
997 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
998 | return count; | |
999 | } | |
222f1806 | 1000 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1001 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
1002 | if (len < 0) { |
1003 | return len; | |
1004 | } | |
1da177e4 | 1005 | i += len; |
222f1806 LC |
1006 | if (value != pkt_dev->udp_dst_max) { |
1007 | pkt_dev->udp_dst_max = value; | |
1008 | pkt_dev->cur_udp_dst = value; | |
1009 | } | |
1da177e4 LT |
1010 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1011 | return count; | |
1012 | } | |
1013 | if (!strcmp(name, "clone_skb")) { | |
1014 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1015 | if (len < 0) { |
1016 | return len; | |
1017 | } | |
1da177e4 | 1018 | i += len; |
222f1806 LC |
1019 | pkt_dev->clone_skb = value; |
1020 | ||
1da177e4 LT |
1021 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1022 | return count; | |
1023 | } | |
1024 | if (!strcmp(name, "count")) { | |
1025 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1026 | if (len < 0) { |
1027 | return len; | |
1028 | } | |
1da177e4 LT |
1029 | i += len; |
1030 | pkt_dev->count = value; | |
1031 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1032 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1033 | return count; |
1034 | } | |
1035 | if (!strcmp(name, "src_mac_count")) { | |
1036 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1037 | if (len < 0) { |
1038 | return len; | |
1039 | } | |
1da177e4 LT |
1040 | i += len; |
1041 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1042 | pkt_dev->src_mac_count = value; |
1043 | pkt_dev->cur_src_mac_offset = 0; | |
1044 | } | |
1045 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1046 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1047 | return count; |
1048 | } | |
1049 | if (!strcmp(name, "dst_mac_count")) { | |
1050 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1051 | if (len < 0) { |
1052 | return len; | |
1053 | } | |
1da177e4 LT |
1054 | i += len; |
1055 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1056 | pkt_dev->dst_mac_count = value; |
1057 | pkt_dev->cur_dst_mac_offset = 0; | |
1058 | } | |
1059 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1060 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1061 | return count; |
1062 | } | |
1063 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1064 | char f[32]; |
1065 | memset(f, 0, 32); | |
1da177e4 | 1066 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1067 | if (len < 0) { |
1068 | return len; | |
1069 | } | |
1da177e4 LT |
1070 | if (copy_from_user(f, &user_buffer[i], len)) |
1071 | return -EFAULT; | |
1072 | i += len; | |
222f1806 LC |
1073 | if (strcmp(f, "IPSRC_RND") == 0) |
1074 | pkt_dev->flags |= F_IPSRC_RND; | |
1075 | ||
1076 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1077 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1078 | ||
1079 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1080 | pkt_dev->flags |= F_TXSIZE_RND; | |
1081 | ||
1082 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1083 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1084 | ||
1085 | else if (strcmp(f, "IPDST_RND") == 0) | |
1086 | pkt_dev->flags |= F_IPDST_RND; | |
1087 | ||
1088 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1089 | pkt_dev->flags &= ~F_IPDST_RND; | |
1090 | ||
1091 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1092 | pkt_dev->flags |= F_UDPSRC_RND; | |
1093 | ||
1094 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1095 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1096 | ||
1097 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1098 | pkt_dev->flags |= F_UDPDST_RND; | |
1099 | ||
1100 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1101 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1102 | ||
1103 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1104 | pkt_dev->flags |= F_MACSRC_RND; | |
1105 | ||
1106 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1107 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1108 | ||
1109 | else if (strcmp(f, "MACDST_RND") == 0) | |
1110 | pkt_dev->flags |= F_MACDST_RND; | |
1111 | ||
1112 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1113 | pkt_dev->flags &= ~F_MACDST_RND; | |
1114 | ||
ca6549af SW |
1115 | else if (strcmp(f, "MPLS_RND") == 0) |
1116 | pkt_dev->flags |= F_MPLS_RND; | |
1117 | ||
1118 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1119 | pkt_dev->flags &= ~F_MPLS_RND; | |
1120 | ||
34954ddc FF |
1121 | else if (strcmp(f, "VID_RND") == 0) |
1122 | pkt_dev->flags |= F_VID_RND; | |
1123 | ||
1124 | else if (strcmp(f, "!VID_RND") == 0) | |
1125 | pkt_dev->flags &= ~F_VID_RND; | |
1126 | ||
1127 | else if (strcmp(f, "SVID_RND") == 0) | |
1128 | pkt_dev->flags |= F_SVID_RND; | |
1129 | ||
1130 | else if (strcmp(f, "!SVID_RND") == 0) | |
1131 | pkt_dev->flags &= ~F_SVID_RND; | |
1132 | ||
007a531b JHS |
1133 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1134 | pkt_dev->flags |= F_FLOW_SEQ; | |
1135 | ||
45b270f8 RO |
1136 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1137 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1138 | ||
1139 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1140 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1141 | |
1142 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1143 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1144 | ||
1145 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1146 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1147 | #ifdef CONFIG_XFRM |
1148 | else if (strcmp(f, "IPSEC") == 0) | |
1149 | pkt_dev->flags |= F_IPSEC_ON; | |
1150 | #endif | |
1151 | ||
1ca7768c FF |
1152 | else if (strcmp(f, "!IPV6") == 0) |
1153 | pkt_dev->flags &= ~F_IPV6; | |
1154 | ||
222f1806 LC |
1155 | else { |
1156 | sprintf(pg_result, | |
1157 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1158 | f, | |
1ca7768c | 1159 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1160 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1161 | return count; |
1162 | } | |
1da177e4 LT |
1163 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1164 | return count; | |
1165 | } | |
1166 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1167 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
222f1806 LC |
1168 | if (len < 0) { |
1169 | return len; | |
1170 | } | |
1da177e4 | 1171 | |
222f1806 | 1172 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1173 | return -EFAULT; |
222f1806 LC |
1174 | buf[len] = 0; |
1175 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1176 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1177 | strncpy(pkt_dev->dst_min, buf, len); | |
1178 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1179 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1180 | } | |
1181 | if (debug) | |
25a8b254 | 1182 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1183 | pkt_dev->dst_min); |
1184 | i += len; | |
1da177e4 LT |
1185 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1186 | return count; | |
1187 | } | |
1188 | if (!strcmp(name, "dst_max")) { | |
1189 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
222f1806 LC |
1190 | if (len < 0) { |
1191 | return len; | |
1192 | } | |
1da177e4 | 1193 | |
222f1806 | 1194 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1195 | return -EFAULT; |
1196 | ||
222f1806 LC |
1197 | buf[len] = 0; |
1198 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1199 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1200 | strncpy(pkt_dev->dst_max, buf, len); | |
1201 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1202 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1203 | } | |
1204 | if (debug) | |
25a8b254 | 1205 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1206 | pkt_dev->dst_max); |
1da177e4 LT |
1207 | i += len; |
1208 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1209 | return count; | |
1210 | } | |
1211 | if (!strcmp(name, "dst6")) { | |
1212 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1213 | if (len < 0) |
1214 | return len; | |
1da177e4 LT |
1215 | |
1216 | pkt_dev->flags |= F_IPV6; | |
1217 | ||
222f1806 | 1218 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1219 | return -EFAULT; |
222f1806 | 1220 | buf[len] = 0; |
1da177e4 LT |
1221 | |
1222 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1223 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1224 | |
1225 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1226 | ||
222f1806 | 1227 | if (debug) |
25a8b254 | 1228 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1229 | |
222f1806 | 1230 | i += len; |
1da177e4 LT |
1231 | sprintf(pg_result, "OK: dst6=%s", buf); |
1232 | return count; | |
1233 | } | |
1234 | if (!strcmp(name, "dst6_min")) { | |
1235 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1236 | if (len < 0) |
1237 | return len; | |
1da177e4 LT |
1238 | |
1239 | pkt_dev->flags |= F_IPV6; | |
1240 | ||
222f1806 | 1241 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1242 | return -EFAULT; |
222f1806 | 1243 | buf[len] = 0; |
1da177e4 LT |
1244 | |
1245 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1246 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1247 | |
222f1806 LC |
1248 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1249 | &pkt_dev->min_in6_daddr); | |
1250 | if (debug) | |
25a8b254 | 1251 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1252 | |
222f1806 | 1253 | i += len; |
1da177e4 LT |
1254 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1255 | return count; | |
1256 | } | |
1257 | if (!strcmp(name, "dst6_max")) { | |
1258 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1259 | if (len < 0) |
1260 | return len; | |
1da177e4 LT |
1261 | |
1262 | pkt_dev->flags |= F_IPV6; | |
1263 | ||
222f1806 | 1264 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1265 | return -EFAULT; |
222f1806 | 1266 | buf[len] = 0; |
1da177e4 LT |
1267 | |
1268 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1269 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1270 | |
222f1806 | 1271 | if (debug) |
25a8b254 | 1272 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1273 | |
222f1806 | 1274 | i += len; |
1da177e4 LT |
1275 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1276 | return count; | |
1277 | } | |
1278 | if (!strcmp(name, "src6")) { | |
1279 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1280 | if (len < 0) |
1281 | return len; | |
1da177e4 LT |
1282 | |
1283 | pkt_dev->flags |= F_IPV6; | |
1284 | ||
222f1806 | 1285 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1286 | return -EFAULT; |
222f1806 | 1287 | buf[len] = 0; |
1da177e4 LT |
1288 | |
1289 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1290 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1291 | |
1292 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1293 | ||
222f1806 | 1294 | if (debug) |
25a8b254 | 1295 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1296 | |
1297 | i += len; | |
1da177e4 LT |
1298 | sprintf(pg_result, "OK: src6=%s", buf); |
1299 | return count; | |
1300 | } | |
1301 | if (!strcmp(name, "src_min")) { | |
1302 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
222f1806 LC |
1303 | if (len < 0) { |
1304 | return len; | |
1305 | } | |
1306 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1307 | return -EFAULT; |
222f1806 LC |
1308 | buf[len] = 0; |
1309 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1310 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1311 | strncpy(pkt_dev->src_min, buf, len); | |
1312 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1313 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1314 | } | |
1315 | if (debug) | |
25a8b254 | 1316 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1317 | pkt_dev->src_min); |
1da177e4 LT |
1318 | i += len; |
1319 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1320 | return count; | |
1321 | } | |
1322 | if (!strcmp(name, "src_max")) { | |
1323 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
222f1806 LC |
1324 | if (len < 0) { |
1325 | return len; | |
1326 | } | |
1327 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1328 | return -EFAULT; |
222f1806 LC |
1329 | buf[len] = 0; |
1330 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1331 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1332 | strncpy(pkt_dev->src_max, buf, len); | |
1333 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1334 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1335 | } | |
1336 | if (debug) | |
25a8b254 | 1337 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1338 | pkt_dev->src_max); |
1da177e4 LT |
1339 | i += len; |
1340 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1341 | return count; | |
1342 | } | |
1343 | if (!strcmp(name, "dst_mac")) { | |
1344 | char *v = valstr; | |
f404e9a6 | 1345 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1346 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1347 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1348 | |
1da177e4 | 1349 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1350 | if (len < 0) { |
1351 | return len; | |
1352 | } | |
1da177e4 | 1353 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1354 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1355 | return -EFAULT; |
1356 | i += len; | |
1357 | ||
222f1806 | 1358 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1359 | if (*v >= '0' && *v <= '9') { |
1360 | *m *= 16; | |
1361 | *m += *v - '0'; | |
1362 | } | |
1363 | if (*v >= 'A' && *v <= 'F') { | |
1364 | *m *= 16; | |
1365 | *m += *v - 'A' + 10; | |
1366 | } | |
1367 | if (*v >= 'a' && *v <= 'f') { | |
1368 | *m *= 16; | |
1369 | *m += *v - 'a' + 10; | |
1370 | } | |
1371 | if (*v == ':') { | |
1372 | m++; | |
1373 | *m = 0; | |
1374 | } | |
1375 | } | |
1376 | ||
1377 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1378 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1379 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1380 | |
1da177e4 LT |
1381 | sprintf(pg_result, "OK: dstmac"); |
1382 | return count; | |
1383 | } | |
1384 | if (!strcmp(name, "src_mac")) { | |
1385 | char *v = valstr; | |
ce5d0b47 | 1386 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1387 | unsigned char *m = pkt_dev->src_mac; |
1388 | ||
ce5d0b47 AR |
1389 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1390 | ||
1da177e4 | 1391 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1392 | if (len < 0) { |
1393 | return len; | |
1394 | } | |
1da177e4 | 1395 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1396 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1397 | return -EFAULT; |
1398 | i += len; | |
1399 | ||
222f1806 | 1400 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1401 | if (*v >= '0' && *v <= '9') { |
1402 | *m *= 16; | |
1403 | *m += *v - '0'; | |
1404 | } | |
1405 | if (*v >= 'A' && *v <= 'F') { | |
1406 | *m *= 16; | |
1407 | *m += *v - 'A' + 10; | |
1408 | } | |
1409 | if (*v >= 'a' && *v <= 'f') { | |
1410 | *m *= 16; | |
1411 | *m += *v - 'a' + 10; | |
1412 | } | |
1413 | if (*v == ':') { | |
1414 | m++; | |
1415 | *m = 0; | |
1416 | } | |
222f1806 | 1417 | } |
1da177e4 | 1418 | |
ce5d0b47 AR |
1419 | /* Set up Src MAC */ |
1420 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1421 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1422 | ||
222f1806 | 1423 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1424 | return count; |
1425 | } | |
1426 | ||
222f1806 LC |
1427 | if (!strcmp(name, "clear_counters")) { |
1428 | pktgen_clear_counters(pkt_dev); | |
1429 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1430 | return count; | |
1431 | } | |
1da177e4 LT |
1432 | |
1433 | if (!strcmp(name, "flows")) { | |
1434 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1435 | if (len < 0) { |
1436 | return len; | |
1437 | } | |
1da177e4 LT |
1438 | i += len; |
1439 | if (value > MAX_CFLOWS) | |
1440 | value = MAX_CFLOWS; | |
1441 | ||
1442 | pkt_dev->cflows = value; | |
1443 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1444 | return count; | |
1445 | } | |
1446 | ||
1447 | if (!strcmp(name, "flowlen")) { | |
1448 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1449 | if (len < 0) { |
1450 | return len; | |
1451 | } | |
1da177e4 LT |
1452 | i += len; |
1453 | pkt_dev->lflow = value; | |
1454 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1455 | return count; | |
1456 | } | |
222f1806 | 1457 | |
45b270f8 RO |
1458 | if (!strcmp(name, "queue_map_min")) { |
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_min = value; | |
1465 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1466 | return count; | |
1467 | } | |
1468 | ||
1469 | if (!strcmp(name, "queue_map_max")) { | |
1470 | len = num_arg(&user_buffer[i], 5, &value); | |
1471 | if (len < 0) { | |
1472 | return len; | |
1473 | } | |
1474 | i += len; | |
1475 | pkt_dev->queue_map_max = value; | |
1476 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1477 | return count; | |
1478 | } | |
1479 | ||
ca6549af | 1480 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1481 | unsigned n, cnt; |
1482 | ||
ca6549af | 1483 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1484 | if (len < 0) |
1485 | return len; | |
ca6549af | 1486 | i += len; |
cfcabdcc | 1487 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1488 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1489 | cnt += sprintf(pg_result + cnt, |
1490 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1491 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1492 | |
1493 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1494 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1495 | pkt_dev->svlan_id = 0xffff; | |
1496 | ||
1497 | if (debug) | |
25a8b254 | 1498 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1499 | } |
1500 | return count; | |
1501 | } | |
1502 | ||
1503 | if (!strcmp(name, "vlan_id")) { | |
1504 | len = num_arg(&user_buffer[i], 4, &value); | |
1505 | if (len < 0) { | |
1506 | return len; | |
1507 | } | |
1508 | i += len; | |
1509 | if (value <= 4095) { | |
1510 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1511 | ||
1512 | if (debug) | |
25a8b254 | 1513 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1514 | |
1515 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1516 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1517 | |
1518 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1519 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1520 | } else { | |
1521 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1522 | pkt_dev->svlan_id = 0xffff; | |
1523 | ||
1524 | if (debug) | |
25a8b254 | 1525 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1526 | } |
1527 | return count; | |
1528 | } | |
1529 | ||
1530 | if (!strcmp(name, "vlan_p")) { | |
1531 | len = num_arg(&user_buffer[i], 1, &value); | |
1532 | if (len < 0) { | |
1533 | return len; | |
1534 | } | |
1535 | i += len; | |
1536 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1537 | pkt_dev->vlan_p = value; | |
1538 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1539 | } else { | |
1540 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1541 | } | |
1542 | return count; | |
1543 | } | |
1544 | ||
1545 | if (!strcmp(name, "vlan_cfi")) { | |
1546 | len = num_arg(&user_buffer[i], 1, &value); | |
1547 | if (len < 0) { | |
1548 | return len; | |
1549 | } | |
1550 | i += len; | |
1551 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1552 | pkt_dev->vlan_cfi = value; | |
1553 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1554 | } else { | |
1555 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1556 | } | |
1557 | return count; | |
1558 | } | |
1559 | ||
1560 | if (!strcmp(name, "svlan_id")) { | |
1561 | len = num_arg(&user_buffer[i], 4, &value); | |
1562 | if (len < 0) { | |
1563 | return len; | |
1564 | } | |
1565 | i += len; | |
1566 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1567 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1568 | ||
1569 | if (debug) | |
25a8b254 | 1570 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1571 | |
1572 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1573 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1574 | |
1575 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1576 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1577 | } else { | |
1578 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1579 | pkt_dev->svlan_id = 0xffff; | |
1580 | ||
1581 | if (debug) | |
25a8b254 | 1582 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1583 | } |
1584 | return count; | |
1585 | } | |
1586 | ||
1587 | if (!strcmp(name, "svlan_p")) { | |
1588 | len = num_arg(&user_buffer[i], 1, &value); | |
1589 | if (len < 0) { | |
1590 | return len; | |
1591 | } | |
1592 | i += len; | |
1593 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1594 | pkt_dev->svlan_p = value; | |
1595 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1596 | } else { | |
1597 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1598 | } | |
1599 | return count; | |
1600 | } | |
1601 | ||
1602 | if (!strcmp(name, "svlan_cfi")) { | |
1603 | len = num_arg(&user_buffer[i], 1, &value); | |
1604 | if (len < 0) { | |
1605 | return len; | |
1606 | } | |
1607 | i += len; | |
1608 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1609 | pkt_dev->svlan_cfi = value; | |
1610 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1611 | } else { | |
1612 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1613 | } | |
ca6549af SW |
1614 | return count; |
1615 | } | |
1616 | ||
1ca7768c FF |
1617 | if (!strcmp(name, "tos")) { |
1618 | __u32 tmp_value = 0; | |
1619 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1620 | if (len < 0) { | |
1621 | return len; | |
1622 | } | |
1623 | i += len; | |
1624 | if (len == 2) { | |
1625 | pkt_dev->tos = tmp_value; | |
1626 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1627 | } else { | |
1628 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1629 | } | |
1630 | return count; | |
1631 | } | |
1632 | ||
1633 | if (!strcmp(name, "traffic_class")) { | |
1634 | __u32 tmp_value = 0; | |
1635 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1636 | if (len < 0) { | |
1637 | return len; | |
1638 | } | |
1639 | i += len; | |
1640 | if (len == 2) { | |
1641 | pkt_dev->traffic_class = tmp_value; | |
1642 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1643 | } else { | |
1644 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1645 | } | |
1646 | return count; | |
1647 | } | |
1648 | ||
1da177e4 LT |
1649 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1650 | return -EINVAL; | |
1651 | } | |
1652 | ||
d50a6b56 | 1653 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1654 | { |
d50a6b56 SH |
1655 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1656 | } | |
1da177e4 | 1657 | |
9a32144e | 1658 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1659 | .owner = THIS_MODULE, |
1660 | .open = pktgen_if_open, | |
1661 | .read = seq_read, | |
1662 | .llseek = seq_lseek, | |
1663 | .write = pktgen_if_write, | |
1664 | .release = single_release, | |
d50a6b56 | 1665 | }; |
1da177e4 | 1666 | |
d50a6b56 SH |
1667 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1668 | { | |
222f1806 | 1669 | struct pktgen_thread *t = seq->private; |
648fda74 | 1670 | const struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1671 | |
1672 | BUG_ON(!t); | |
1da177e4 | 1673 | |
222f1806 | 1674 | seq_printf(seq, "Running: "); |
1da177e4 | 1675 | |
222f1806 | 1676 | if_lock(t); |
c26a8016 | 1677 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1678 | if (pkt_dev->running) |
39df232f | 1679 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 | 1680 | |
222f1806 LC |
1681 | seq_printf(seq, "\nStopped: "); |
1682 | ||
c26a8016 | 1683 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1684 | if (!pkt_dev->running) |
39df232f | 1685 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 LT |
1686 | |
1687 | if (t->result[0]) | |
d50a6b56 | 1688 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1689 | else |
d50a6b56 | 1690 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1691 | |
222f1806 | 1692 | if_unlock(t); |
1da177e4 | 1693 | |
d50a6b56 | 1694 | return 0; |
1da177e4 LT |
1695 | } |
1696 | ||
d50a6b56 | 1697 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1698 | const char __user * user_buffer, |
1699 | size_t count, loff_t * offset) | |
1da177e4 | 1700 | { |
222f1806 LC |
1701 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1702 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1703 | int i = 0, max, len, ret; |
1704 | char name[40]; | |
222f1806 | 1705 | char *pg_result; |
d50a6b56 | 1706 | |
1da177e4 | 1707 | if (count < 1) { |
222f1806 | 1708 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1709 | return -EINVAL; |
1710 | } | |
d50a6b56 | 1711 | |
1da177e4 | 1712 | max = count - i; |
222f1806 LC |
1713 | len = count_trail_chars(&user_buffer[i], max); |
1714 | if (len < 0) | |
d50a6b56 SH |
1715 | return len; |
1716 | ||
1da177e4 | 1717 | i += len; |
d50a6b56 | 1718 | |
1da177e4 LT |
1719 | /* Read variable name */ |
1720 | ||
1721 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1722 | if (len < 0) |
d50a6b56 | 1723 | return len; |
222f1806 | 1724 | |
1da177e4 LT |
1725 | memset(name, 0, sizeof(name)); |
1726 | if (copy_from_user(name, &user_buffer[i], len)) | |
1727 | return -EFAULT; | |
1728 | i += len; | |
d50a6b56 | 1729 | |
222f1806 | 1730 | max = count - i; |
1da177e4 | 1731 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1732 | if (len < 0) |
d50a6b56 SH |
1733 | return len; |
1734 | ||
1da177e4 LT |
1735 | i += len; |
1736 | ||
d50a6b56 | 1737 | if (debug) |
25a8b254 DM |
1738 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1739 | name, (unsigned long)count); | |
1da177e4 | 1740 | |
222f1806 | 1741 | if (!t) { |
25a8b254 | 1742 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1743 | ret = -EINVAL; |
1744 | goto out; | |
1745 | } | |
1746 | ||
1747 | pg_result = &(t->result[0]); | |
1748 | ||
222f1806 LC |
1749 | if (!strcmp(name, "add_device")) { |
1750 | char f[32]; | |
1751 | memset(f, 0, 32); | |
1da177e4 | 1752 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1753 | if (len < 0) { |
1754 | ret = len; | |
1da177e4 LT |
1755 | goto out; |
1756 | } | |
222f1806 | 1757 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1758 | return -EFAULT; |
1759 | i += len; | |
6146e6a4 | 1760 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1761 | pktgen_add_device(t, f); |
6146e6a4 | 1762 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1763 | ret = count; |
1764 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1765 | goto out; |
1766 | } | |
1767 | ||
222f1806 | 1768 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1769 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1770 | t->control |= T_REMDEVALL; |
6146e6a4 | 1771 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1772 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1773 | ret = count; |
222f1806 | 1774 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1775 | goto out; |
1776 | } | |
1777 | ||
222f1806 | 1778 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1779 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1780 | ret = count; |
1da177e4 LT |
1781 | goto out; |
1782 | } | |
1783 | ||
1784 | ret = -EINVAL; | |
222f1806 | 1785 | out: |
1da177e4 LT |
1786 | return ret; |
1787 | } | |
1788 | ||
d50a6b56 | 1789 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1790 | { |
d50a6b56 | 1791 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1792 | } |
1793 | ||
9a32144e | 1794 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1795 | .owner = THIS_MODULE, |
1796 | .open = pktgen_thread_open, | |
1797 | .read = seq_read, | |
1798 | .llseek = seq_lseek, | |
1799 | .write = pktgen_thread_write, | |
1800 | .release = single_release, | |
d50a6b56 | 1801 | }; |
1da177e4 LT |
1802 | |
1803 | /* Think find or remove for NN */ | |
222f1806 | 1804 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1805 | { |
1806 | struct pktgen_thread *t; | |
1807 | struct pktgen_dev *pkt_dev = NULL; | |
1808 | ||
cdcdbe0b | 1809 | list_for_each_entry(t, &pktgen_threads, th_list) { |
1da177e4 LT |
1810 | pkt_dev = pktgen_find_dev(t, ifname); |
1811 | if (pkt_dev) { | |
222f1806 LC |
1812 | if (remove) { |
1813 | if_lock(t); | |
1814 | pkt_dev->removal_mark = 1; | |
1815 | t->control |= T_REMDEV; | |
1816 | if_unlock(t); | |
1817 | } | |
1da177e4 LT |
1818 | break; |
1819 | } | |
1da177e4 | 1820 | } |
222f1806 | 1821 | return pkt_dev; |
1da177e4 LT |
1822 | } |
1823 | ||
95ed63f7 AK |
1824 | /* |
1825 | * mark a device for removal | |
1826 | */ | |
39df232f | 1827 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1828 | { |
1829 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1830 | const int max_tries = 10, msec_per_try = 125; |
1831 | int i = 0; | |
95ed63f7 | 1832 | |
6146e6a4 | 1833 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1834 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1835 | |
222f1806 | 1836 | while (1) { |
95ed63f7 AK |
1837 | |
1838 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1839 | if (pkt_dev == NULL) |
1840 | break; /* success */ | |
95ed63f7 | 1841 | |
6146e6a4 | 1842 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1843 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1844 | "to disappear....\n", ifname); | |
95ed63f7 | 1845 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1846 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1847 | |
1848 | if (++i >= max_tries) { | |
25a8b254 DM |
1849 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1850 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1851 | msec_per_try * i, ifname); |
95ed63f7 AK |
1852 | break; |
1853 | } | |
1854 | ||
1855 | } | |
1856 | ||
6146e6a4 | 1857 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1858 | } |
95ed63f7 | 1859 | |
39df232f SH |
1860 | static void pktgen_change_name(struct net_device *dev) |
1861 | { | |
1862 | struct pktgen_thread *t; | |
1863 | ||
1864 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1865 | struct pktgen_dev *pkt_dev; | |
1866 | ||
1867 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1868 | if (pkt_dev->odev != dev) | |
1869 | continue; | |
1870 | ||
1871 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1872 | ||
1873 | pkt_dev->entry = create_proc_entry(dev->name, 0600, | |
1874 | pg_proc_dir); | |
1875 | if (!pkt_dev->entry) | |
1876 | printk(KERN_ERR "pktgen: can't move proc " | |
1877 | " entry for '%s'\n", dev->name); | |
1878 | break; | |
1879 | } | |
1880 | } | |
1da177e4 LT |
1881 | } |
1882 | ||
222f1806 LC |
1883 | static int pktgen_device_event(struct notifier_block *unused, |
1884 | unsigned long event, void *ptr) | |
1da177e4 | 1885 | { |
39df232f | 1886 | struct net_device *dev = ptr; |
1da177e4 | 1887 | |
721499e8 | 1888 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1889 | return NOTIFY_DONE; |
1890 | ||
1da177e4 LT |
1891 | /* It is OK that we do not hold the group lock right now, |
1892 | * as we run under the RTNL lock. | |
1893 | */ | |
1894 | ||
1895 | switch (event) { | |
39df232f SH |
1896 | case NETDEV_CHANGENAME: |
1897 | pktgen_change_name(dev); | |
1da177e4 | 1898 | break; |
222f1806 | 1899 | |
1da177e4 | 1900 | case NETDEV_UNREGISTER: |
222f1806 | 1901 | pktgen_mark_device(dev->name); |
1da177e4 | 1902 | break; |
3ff50b79 | 1903 | } |
1da177e4 LT |
1904 | |
1905 | return NOTIFY_DONE; | |
1906 | } | |
1907 | ||
e6fce5b9 RO |
1908 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, const char *ifname) |
1909 | { | |
1910 | char b[IFNAMSIZ+5]; | |
1911 | int i = 0; | |
1912 | ||
1913 | for(i=0; ifname[i] != '@'; i++) { | |
1914 | if(i == IFNAMSIZ) | |
1915 | break; | |
1916 | ||
1917 | b[i] = ifname[i]; | |
1918 | } | |
1919 | b[i] = 0; | |
1920 | ||
1921 | return dev_get_by_name(&init_net, b); | |
1922 | } | |
1923 | ||
1924 | ||
1da177e4 LT |
1925 | /* Associate pktgen_dev with a device. */ |
1926 | ||
39df232f | 1927 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1928 | { |
1da177e4 | 1929 | struct net_device *odev; |
39df232f | 1930 | int err; |
1da177e4 LT |
1931 | |
1932 | /* Clean old setups */ | |
1da177e4 LT |
1933 | if (pkt_dev->odev) { |
1934 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1935 | pkt_dev->odev = NULL; |
1936 | } | |
1da177e4 | 1937 | |
e6fce5b9 | 1938 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 1939 | if (!odev) { |
25a8b254 | 1940 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1941 | return -ENODEV; |
1da177e4 | 1942 | } |
39df232f | 1943 | |
1da177e4 | 1944 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1945 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1946 | err = -EINVAL; |
1947 | } else if (!netif_running(odev)) { | |
25a8b254 | 1948 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1949 | err = -ENETDOWN; |
1950 | } else { | |
1951 | pkt_dev->odev = odev; | |
1952 | return 0; | |
1da177e4 | 1953 | } |
1da177e4 | 1954 | |
1da177e4 | 1955 | dev_put(odev); |
39df232f | 1956 | return err; |
1da177e4 LT |
1957 | } |
1958 | ||
1959 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1960 | * structure to have the right information to create/send packets | |
1961 | */ | |
1962 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1963 | { | |
64c00d81 AG |
1964 | int ntxq; |
1965 | ||
222f1806 | 1966 | if (!pkt_dev->odev) { |
25a8b254 DM |
1967 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1968 | "setup_inject.\n"); | |
222f1806 LC |
1969 | sprintf(pkt_dev->result, |
1970 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1971 | return; | |
1972 | } | |
1973 | ||
64c00d81 AG |
1974 | /* make sure that we don't pick a non-existing transmit queue */ |
1975 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
bfdbc0ac | 1976 | |
64c00d81 AG |
1977 | if (ntxq <= pkt_dev->queue_map_min) { |
1978 | printk(KERN_WARNING "pktgen: WARNING: Requested " | |
88271660 JB |
1979 | "queue_map_min (zero-based) (%d) exceeds valid range " |
1980 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
1981 | pkt_dev->queue_map_min, (ntxq ?: 1)- 1, ntxq, | |
1982 | pkt_dev->odev->name); | |
64c00d81 AG |
1983 | pkt_dev->queue_map_min = ntxq - 1; |
1984 | } | |
88271660 | 1985 | if (pkt_dev->queue_map_max >= ntxq) { |
64c00d81 | 1986 | printk(KERN_WARNING "pktgen: WARNING: Requested " |
88271660 JB |
1987 | "queue_map_max (zero-based) (%d) exceeds valid range " |
1988 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
1989 | pkt_dev->queue_map_max, (ntxq ?: 1)- 1, ntxq, | |
1990 | pkt_dev->odev->name); | |
64c00d81 AG |
1991 | pkt_dev->queue_map_max = ntxq - 1; |
1992 | } | |
1993 | ||
222f1806 | 1994 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 1995 | |
f404e9a6 | 1996 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 1997 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 1998 | |
222f1806 | 1999 | /* Set up Dest MAC */ |
f404e9a6 | 2000 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2001 | |
222f1806 LC |
2002 | /* Set up pkt size */ |
2003 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
2004 | ||
2005 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 2006 | /* |
4ec93edb | 2007 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
2008 | * gets exported |
2009 | */ | |
2010 | ||
2011 | #ifdef NOTNOW | |
222f1806 | 2012 | int i, set = 0, err = 1; |
1da177e4 LT |
2013 | struct inet6_dev *idev; |
2014 | ||
222f1806 LC |
2015 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2016 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2017 | set = 1; |
2018 | break; | |
2019 | } | |
2020 | ||
222f1806 LC |
2021 | if (!set) { |
2022 | ||
1da177e4 LT |
2023 | /* |
2024 | * Use linklevel address if unconfigured. | |
2025 | * | |
2026 | * use ipv6_get_lladdr if/when it's get exported | |
2027 | */ | |
2028 | ||
8814c4b5 | 2029 | rcu_read_lock(); |
1da177e4 LT |
2030 | if ((idev = __in6_dev_get(pkt_dev->odev)) != NULL) { |
2031 | struct inet6_ifaddr *ifp; | |
2032 | ||
2033 | read_lock_bh(&idev->lock); | |
222f1806 LC |
2034 | for (ifp = idev->addr_list; ifp; |
2035 | ifp = ifp->if_next) { | |
2036 | if (ifp->scope == IFA_LINK | |
2037 | && !(ifp-> | |
2038 | flags & IFA_F_TENTATIVE)) { | |
2039 | ipv6_addr_copy(&pkt_dev-> | |
2040 | cur_in6_saddr, | |
2041 | &ifp->addr); | |
1da177e4 LT |
2042 | err = 0; |
2043 | break; | |
2044 | } | |
2045 | } | |
2046 | read_unlock_bh(&idev->lock); | |
2047 | } | |
8814c4b5 | 2048 | rcu_read_unlock(); |
222f1806 | 2049 | if (err) |
25a8b254 DM |
2050 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2051 | "address not availble.\n"); | |
1da177e4 LT |
2052 | } |
2053 | #endif | |
222f1806 | 2054 | } else { |
1da177e4 LT |
2055 | pkt_dev->saddr_min = 0; |
2056 | pkt_dev->saddr_max = 0; | |
2057 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2058 | |
2059 | struct in_device *in_dev; | |
1da177e4 LT |
2060 | |
2061 | rcu_read_lock(); | |
e5ed6399 | 2062 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2063 | if (in_dev) { |
2064 | if (in_dev->ifa_list) { | |
222f1806 LC |
2065 | pkt_dev->saddr_min = |
2066 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2067 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2068 | } | |
1da177e4 LT |
2069 | } |
2070 | rcu_read_unlock(); | |
222f1806 | 2071 | } else { |
1da177e4 LT |
2072 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2073 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2074 | } | |
2075 | ||
2076 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2077 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2078 | } | |
222f1806 LC |
2079 | /* Initialize current values. */ |
2080 | pkt_dev->cur_dst_mac_offset = 0; | |
2081 | pkt_dev->cur_src_mac_offset = 0; | |
2082 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2083 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2084 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2085 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2086 | pkt_dev->nflows = 0; |
2087 | } | |
2088 | ||
fd29cf72 | 2089 | static inline s64 delta_ns(ktime_t a, ktime_t b) |
1da177e4 | 2090 | { |
fd29cf72 SH |
2091 | return ktime_to_ns(ktime_sub(a, b)); |
2092 | } | |
2093 | ||
2094 | static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) | |
2095 | { | |
2096 | ktime_t start, now; | |
2097 | s64 dt; | |
2098 | ||
2099 | start = now = ktime_now(); | |
1da177e4 | 2100 | |
fd29cf72 | 2101 | while ((dt = delta_ns(spin_until, now)) > 0) { |
b4099fab | 2102 | /* TODO: optimize sleeping behavior */ |
fd29cf72 | 2103 | if (dt > TICK_NSEC) |
121caf57 | 2104 | schedule_timeout_interruptible(1); |
fd29cf72 | 2105 | else if (dt > 100*NSEC_PER_USEC) { |
1da177e4 LT |
2106 | if (!pkt_dev->running) |
2107 | return; | |
2108 | if (need_resched()) | |
2109 | schedule(); | |
2110 | } | |
2111 | ||
fd29cf72 | 2112 | now = ktime_now(); |
1da177e4 LT |
2113 | } |
2114 | ||
fd29cf72 | 2115 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(now, start)); |
1da177e4 LT |
2116 | } |
2117 | ||
16dab72f JHS |
2118 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2119 | { | |
a553e4a6 | 2120 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2121 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2122 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2123 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2124 | } | |
2125 | ||
648fda74 | 2126 | static inline int f_seen(const struct pktgen_dev *pkt_dev, int flow) |
007a531b | 2127 | { |
648fda74 | 2128 | return !!(pkt_dev->flows[flow].flags & F_INIT); |
007a531b JHS |
2129 | } |
2130 | ||
2131 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2132 | { | |
2133 | int flow = pkt_dev->curfl; | |
2134 | ||
2135 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2136 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2137 | /* reset time */ | |
2138 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2139 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2140 | pkt_dev->curfl += 1; |
2141 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2142 | pkt_dev->curfl = 0; /*reset */ | |
2143 | } | |
2144 | } else { | |
2145 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2146 | pkt_dev->curfl = flow; |
007a531b | 2147 | |
1211a645 | 2148 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2149 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2150 | pkt_dev->flows[flow].flags = 0; |
2151 | } | |
007a531b JHS |
2152 | } |
2153 | ||
2154 | return pkt_dev->curfl; | |
2155 | } | |
2156 | ||
a553e4a6 JHS |
2157 | |
2158 | #ifdef CONFIG_XFRM | |
2159 | /* If there was already an IPSEC SA, we keep it as is, else | |
2160 | * we go look for it ... | |
2161 | */ | |
fea1ab0f | 2162 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2163 | { |
2164 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2165 | if (!x) { | |
2166 | /*slow path: we dont already have xfrm_state*/ | |
5447c5e4 AD |
2167 | x = xfrm_stateonly_find(&init_net, |
2168 | (xfrm_address_t *)&pkt_dev->cur_daddr, | |
a553e4a6 JHS |
2169 | (xfrm_address_t *)&pkt_dev->cur_saddr, |
2170 | AF_INET, | |
2171 | pkt_dev->ipsmode, | |
2172 | pkt_dev->ipsproto, 0); | |
2173 | if (x) { | |
2174 | pkt_dev->flows[flow].x = x; | |
2175 | set_pkt_overhead(pkt_dev); | |
2176 | pkt_dev->pkt_overhead+=x->props.header_len; | |
2177 | } | |
2178 | ||
2179 | } | |
2180 | } | |
2181 | #endif | |
fd2ea0a7 DM |
2182 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2183 | { | |
e6fce5b9 RO |
2184 | |
2185 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2186 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2187 | ||
2188 | else if (pkt_dev->queue_map_min < pkt_dev->queue_map_max) { | |
fd2ea0a7 DM |
2189 | __u16 t; |
2190 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2191 | t = random32() % | |
2192 | (pkt_dev->queue_map_max - | |
2193 | pkt_dev->queue_map_min + 1) | |
2194 | + pkt_dev->queue_map_min; | |
2195 | } else { | |
2196 | t = pkt_dev->cur_queue_map + 1; | |
2197 | if (t > pkt_dev->queue_map_max) | |
2198 | t = pkt_dev->queue_map_min; | |
2199 | } | |
2200 | pkt_dev->cur_queue_map = t; | |
2201 | } | |
bfdbc0ac | 2202 | pkt_dev->cur_queue_map = pkt_dev->cur_queue_map % pkt_dev->odev->real_num_tx_queues; |
fd2ea0a7 DM |
2203 | } |
2204 | ||
1da177e4 LT |
2205 | /* Increment/randomize headers according to flags and current values |
2206 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2207 | */ | |
222f1806 LC |
2208 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2209 | { | |
2210 | __u32 imn; | |
2211 | __u32 imx; | |
2212 | int flow = 0; | |
1da177e4 | 2213 | |
007a531b JHS |
2214 | if (pkt_dev->cflows) |
2215 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2216 | |
2217 | /* Deal with source MAC */ | |
222f1806 LC |
2218 | if (pkt_dev->src_mac_count > 1) { |
2219 | __u32 mc; | |
2220 | __u32 tmp; | |
2221 | ||
2222 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2223 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2224 | else { |
2225 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2226 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2227 | pkt_dev->src_mac_count) |
2228 | pkt_dev->cur_src_mac_offset = 0; | |
2229 | } | |
2230 | ||
2231 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2232 | pkt_dev->hh[11] = tmp; | |
2233 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2234 | pkt_dev->hh[10] = tmp; | |
2235 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2236 | pkt_dev->hh[9] = tmp; | |
2237 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2238 | pkt_dev->hh[8] = tmp; | |
2239 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2240 | pkt_dev->hh[7] = tmp; | |
2241 | } | |
2242 | ||
2243 | /* Deal with Destination MAC */ | |
2244 | if (pkt_dev->dst_mac_count > 1) { | |
2245 | __u32 mc; | |
2246 | __u32 tmp; | |
2247 | ||
2248 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2249 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2250 | |
2251 | else { | |
2252 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2253 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2254 | pkt_dev->dst_mac_count) { |
2255 | pkt_dev->cur_dst_mac_offset = 0; | |
2256 | } | |
2257 | } | |
2258 | ||
2259 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2260 | pkt_dev->hh[5] = tmp; | |
2261 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2262 | pkt_dev->hh[4] = tmp; | |
2263 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2264 | pkt_dev->hh[3] = tmp; | |
2265 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2266 | pkt_dev->hh[2] = tmp; | |
2267 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2268 | pkt_dev->hh[1] = tmp; | |
2269 | } | |
2270 | ||
ca6549af SW |
2271 | if (pkt_dev->flags & F_MPLS_RND) { |
2272 | unsigned i; | |
e71a4783 | 2273 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2274 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2275 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2276 | ((__force __be32)random32() & |
ca6549af SW |
2277 | htonl(0x000fffff)); |
2278 | } | |
2279 | ||
34954ddc | 2280 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2281 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2282 | } |
2283 | ||
2284 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2285 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2286 | } |
2287 | ||
222f1806 LC |
2288 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2289 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2290 | pkt_dev->cur_udp_src = random32() % |
2291 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2292 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2293 | |
2294 | else { | |
1da177e4 LT |
2295 | pkt_dev->cur_udp_src++; |
2296 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2297 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2298 | } |
2299 | } | |
2300 | ||
2301 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2302 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2303 | pkt_dev->cur_udp_dst = random32() % |
2304 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2305 | + pkt_dev->udp_dst_min; | |
222f1806 | 2306 | } else { |
1da177e4 | 2307 | pkt_dev->cur_udp_dst++; |
222f1806 | 2308 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2309 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2310 | } |
2311 | } | |
1da177e4 LT |
2312 | |
2313 | if (!(pkt_dev->flags & F_IPV6)) { | |
2314 | ||
222f1806 LC |
2315 | if ((imn = ntohl(pkt_dev->saddr_min)) < (imx = |
2316 | ntohl(pkt_dev-> | |
2317 | saddr_max))) { | |
1da177e4 | 2318 | __u32 t; |
222f1806 | 2319 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2320 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2321 | else { |
2322 | t = ntohl(pkt_dev->cur_saddr); | |
2323 | t++; | |
2324 | if (t > imx) { | |
2325 | t = imn; | |
2326 | } | |
2327 | } | |
2328 | pkt_dev->cur_saddr = htonl(t); | |
2329 | } | |
222f1806 | 2330 | |
007a531b | 2331 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2332 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2333 | } else { | |
252e3346 AV |
2334 | imn = ntohl(pkt_dev->daddr_min); |
2335 | imx = ntohl(pkt_dev->daddr_max); | |
2336 | if (imn < imx) { | |
1da177e4 | 2337 | __u32 t; |
252e3346 | 2338 | __be32 s; |
1da177e4 LT |
2339 | if (pkt_dev->flags & F_IPDST_RND) { |
2340 | ||
5fa6fc76 | 2341 | t = random32() % (imx - imn) + imn; |
252e3346 | 2342 | s = htonl(t); |
1da177e4 | 2343 | |
21cf2253 JP |
2344 | while (ipv4_is_loopback(s) || |
2345 | ipv4_is_multicast(s) || | |
1e637c74 | 2346 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2347 | ipv4_is_zeronet(s) || |
2348 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2349 | t = random32() % (imx - imn) + imn; |
252e3346 | 2350 | s = htonl(t); |
1da177e4 | 2351 | } |
252e3346 AV |
2352 | pkt_dev->cur_daddr = s; |
2353 | } else { | |
1da177e4 LT |
2354 | t = ntohl(pkt_dev->cur_daddr); |
2355 | t++; | |
2356 | if (t > imx) { | |
2357 | t = imn; | |
2358 | } | |
2359 | pkt_dev->cur_daddr = htonl(t); | |
2360 | } | |
2361 | } | |
222f1806 | 2362 | if (pkt_dev->cflows) { |
007a531b | 2363 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2364 | pkt_dev->flows[flow].cur_daddr = |
2365 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2366 | #ifdef CONFIG_XFRM |
2367 | if (pkt_dev->flags & F_IPSEC_ON) | |
2368 | get_ipsec_sa(pkt_dev, flow); | |
2369 | #endif | |
1da177e4 LT |
2370 | pkt_dev->nflows++; |
2371 | } | |
2372 | } | |
222f1806 LC |
2373 | } else { /* IPV6 * */ |
2374 | ||
2375 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2376 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2377 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2378 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2379 | else { |
2380 | int i; | |
2381 | ||
2382 | /* Only random destinations yet */ | |
2383 | ||
222f1806 | 2384 | for (i = 0; i < 4; i++) { |
1da177e4 | 2385 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2386 | (((__force __be32)random32() | |
222f1806 LC |
2387 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2388 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2389 | } |
222f1806 | 2390 | } |
1da177e4 LT |
2391 | } |
2392 | ||
222f1806 LC |
2393 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2394 | __u32 t; | |
2395 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2396 | t = random32() % |
2397 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2398 | + pkt_dev->min_pkt_size; | |
222f1806 | 2399 | } else { |
1da177e4 | 2400 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2401 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2402 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2403 | } |
2404 | pkt_dev->cur_pkt_size = t; | |
2405 | } | |
1da177e4 | 2406 | |
fd2ea0a7 | 2407 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2408 | |
1da177e4 LT |
2409 | pkt_dev->flows[flow].count++; |
2410 | } | |
2411 | ||
a553e4a6 JHS |
2412 | |
2413 | #ifdef CONFIG_XFRM | |
2414 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2415 | { | |
2416 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2417 | int err = 0; | |
2418 | struct iphdr *iph; | |
2419 | ||
2420 | if (!x) | |
2421 | return 0; | |
2422 | /* XXX: we dont support tunnel mode for now until | |
2423 | * we resolve the dst issue */ | |
2424 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2425 | return 0; | |
2426 | ||
2427 | spin_lock(&x->lock); | |
2428 | iph = ip_hdr(skb); | |
2429 | ||
13996378 | 2430 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2431 | if (err) |
2432 | goto error; | |
2433 | err = x->type->output(x, skb); | |
2434 | if (err) | |
2435 | goto error; | |
2436 | ||
2437 | x->curlft.bytes +=skb->len; | |
2438 | x->curlft.packets++; | |
a553e4a6 JHS |
2439 | error: |
2440 | spin_unlock(&x->lock); | |
2441 | return err; | |
2442 | } | |
2443 | ||
475ac1e4 | 2444 | static void free_SAs(struct pktgen_dev *pkt_dev) |
a553e4a6 JHS |
2445 | { |
2446 | if (pkt_dev->cflows) { | |
2447 | /* let go of the SAs if we have them */ | |
2448 | int i = 0; | |
5b5f792a | 2449 | for (; i < pkt_dev->cflows; i++) { |
a553e4a6 JHS |
2450 | struct xfrm_state *x = pkt_dev->flows[i].x; |
2451 | if (x) { | |
2452 | xfrm_state_put(x); | |
2453 | pkt_dev->flows[i].x = NULL; | |
2454 | } | |
2455 | } | |
2456 | } | |
2457 | } | |
2458 | ||
475ac1e4 | 2459 | static int process_ipsec(struct pktgen_dev *pkt_dev, |
a553e4a6 JHS |
2460 | struct sk_buff *skb, __be16 protocol) |
2461 | { | |
2462 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2463 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2464 | int nhead = 0; | |
2465 | if (x) { | |
2466 | int ret; | |
2467 | __u8 *eth; | |
2468 | nhead = x->props.header_len - skb_headroom(skb); | |
2469 | if (nhead >0) { | |
2470 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); | |
2471 | if (ret < 0) { | |
25a8b254 DM |
2472 | printk(KERN_ERR "Error expanding " |
2473 | "ipsec packet %d\n",ret); | |
b4bb4ac8 | 2474 | goto err; |
a553e4a6 JHS |
2475 | } |
2476 | } | |
2477 | ||
2478 | /* ipsec is not expecting ll header */ | |
2479 | skb_pull(skb, ETH_HLEN); | |
2480 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2481 | if (ret) { | |
25a8b254 DM |
2482 | printk(KERN_ERR "Error creating ipsec " |
2483 | "packet %d\n",ret); | |
b4bb4ac8 | 2484 | goto err; |
a553e4a6 JHS |
2485 | } |
2486 | /* restore ll */ | |
2487 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2488 | memcpy(eth, pkt_dev->hh, 12); | |
2489 | *(u16 *) & eth[12] = protocol; | |
2490 | } | |
2491 | } | |
2492 | return 1; | |
b4bb4ac8 IJ |
2493 | err: |
2494 | kfree_skb(skb); | |
2495 | return 0; | |
a553e4a6 JHS |
2496 | } |
2497 | #endif | |
2498 | ||
ca6549af SW |
2499 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2500 | { | |
2501 | unsigned i; | |
e71a4783 | 2502 | for (i = 0; i < pkt_dev->nr_labels; i++) { |
ca6549af SW |
2503 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
2504 | } | |
2505 | mpls--; | |
2506 | *mpls |= MPLS_STACK_BOTTOM; | |
2507 | } | |
2508 | ||
0f37c605 AV |
2509 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2510 | unsigned int prio) | |
2511 | { | |
2512 | return htons(id | (cfi << 12) | (prio << 13)); | |
2513 | } | |
2514 | ||
222f1806 LC |
2515 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2516 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2517 | { |
2518 | struct sk_buff *skb = NULL; | |
2519 | __u8 *eth; | |
2520 | struct udphdr *udph; | |
2521 | int datalen, iplen; | |
2522 | struct iphdr *iph; | |
222f1806 | 2523 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2524 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2525 | __be32 *mpls; |
34954ddc FF |
2526 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2527 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2528 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2529 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2530 | u16 queue_map; |
ca6549af SW |
2531 | |
2532 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2533 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2534 | |
34954ddc | 2535 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2536 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2537 | |
64053bee RO |
2538 | /* Update any of the values, used when we're incrementing various |
2539 | * fields. | |
2540 | */ | |
fd2ea0a7 | 2541 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2542 | mod_cur_headers(pkt_dev); |
2543 | ||
7ac5459e | 2544 | datalen = (odev->hard_header_len + 16) & ~0xf; |
e470757d SH |
2545 | skb = __netdev_alloc_skb(odev, |
2546 | pkt_dev->cur_pkt_size + 64 | |
2547 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2548 | if (!skb) { |
2549 | sprintf(pkt_dev->result, "No memory"); | |
2550 | return NULL; | |
2551 | } | |
2552 | ||
7ac5459e | 2553 | skb_reserve(skb, datalen); |
1da177e4 LT |
2554 | |
2555 | /* Reserve for ethernet and IP header */ | |
2556 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2557 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2558 | if (pkt_dev->nr_labels) | |
2559 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2560 | |
2561 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2562 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2563 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2564 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2565 | pkt_dev->svlan_cfi, | |
2566 | pkt_dev->svlan_p); | |
34954ddc | 2567 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2568 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2569 | } |
2570 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2571 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2572 | pkt_dev->vlan_cfi, | |
2573 | pkt_dev->vlan_p); | |
34954ddc | 2574 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2575 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2576 | } |
2577 | ||
27a884dc | 2578 | skb->network_header = skb->tail; |
b0e380b1 | 2579 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2580 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2581 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2582 | iph = ip_hdr(skb); |
2583 | udph = udp_hdr(skb); | |
1da177e4 | 2584 | |
1da177e4 | 2585 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2586 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2587 | |
ca6549af SW |
2588 | /* Eth + IPh + UDPh + mpls */ |
2589 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2590 | pkt_dev->pkt_overhead; |
222f1806 | 2591 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2592 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2593 | |
1da177e4 LT |
2594 | udph->source = htons(pkt_dev->cur_udp_src); |
2595 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2596 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2597 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2598 | |
2599 | iph->ihl = 5; | |
2600 | iph->version = 4; | |
2601 | iph->ttl = 32; | |
1ca7768c | 2602 | iph->tos = pkt_dev->tos; |
222f1806 | 2603 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2604 | iph->saddr = pkt_dev->cur_saddr; |
2605 | iph->daddr = pkt_dev->cur_daddr; | |
2606 | iph->frag_off = 0; | |
2607 | iplen = 20 + 8 + datalen; | |
2608 | iph->tot_len = htons(iplen); | |
2609 | iph->check = 0; | |
222f1806 | 2610 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2611 | skb->protocol = protocol; |
b0e380b1 | 2612 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2613 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2614 | skb->dev = odev; |
2615 | skb->pkt_type = PACKET_HOST; | |
2616 | ||
222f1806 LC |
2617 | if (pkt_dev->nfrags <= 0) |
2618 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2619 | else { |
2620 | int frags = pkt_dev->nfrags; | |
2621 | int i; | |
2622 | ||
222f1806 LC |
2623 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2624 | ||
1da177e4 LT |
2625 | if (frags > MAX_SKB_FRAGS) |
2626 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2627 | if (datalen > frags * PAGE_SIZE) { |
2628 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2629 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2630 | } |
2631 | ||
2632 | i = 0; | |
2633 | while (datalen > 0) { | |
2634 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2635 | skb_shinfo(skb)->frags[i].page = page; | |
2636 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2637 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2638 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2639 | datalen -= skb_shinfo(skb)->frags[i].size; |
2640 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2641 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2642 | i++; | |
2643 | skb_shinfo(skb)->nr_frags = i; | |
2644 | } | |
2645 | ||
2646 | while (i < frags) { | |
2647 | int rem; | |
2648 | ||
2649 | if (i == 0) | |
2650 | break; | |
2651 | ||
2652 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2653 | if (rem == 0) | |
2654 | break; | |
2655 | ||
2656 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2657 | ||
222f1806 LC |
2658 | skb_shinfo(skb)->frags[i] = |
2659 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2660 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2661 | skb_shinfo(skb)->frags[i].page = |
2662 | skb_shinfo(skb)->frags[i - 1].page; | |
2663 | skb_shinfo(skb)->frags[i].page_offset += | |
2664 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2665 | skb_shinfo(skb)->frags[i].size = rem; |
2666 | i++; | |
2667 | skb_shinfo(skb)->nr_frags = i; | |
2668 | } | |
2669 | } | |
2670 | ||
222f1806 LC |
2671 | /* Stamp the time, and sequence number, convert them to network byte order */ |
2672 | ||
2673 | if (pgh) { | |
2674 | struct timeval timestamp; | |
2675 | ||
2676 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2677 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2678 | ||
2679 | do_gettimeofday(×tamp); | |
2680 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2681 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2682 | } | |
1da177e4 | 2683 | |
a553e4a6 JHS |
2684 | #ifdef CONFIG_XFRM |
2685 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2686 | return NULL; | |
2687 | #endif | |
2688 | ||
1da177e4 LT |
2689 | return skb; |
2690 | } | |
2691 | ||
2692 | /* | |
4ec93edb | 2693 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2694 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2695 | * | |
4ec93edb | 2696 | * Slightly modified for kernel. |
1da177e4 LT |
2697 | * Should be candidate for net/ipv4/utils.c |
2698 | * --ro | |
2699 | */ | |
2700 | ||
222f1806 | 2701 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2702 | { |
2703 | unsigned int i; | |
222f1806 | 2704 | unsigned int len = 0; |
1da177e4 LT |
2705 | unsigned long u; |
2706 | char suffix[16]; | |
222f1806 LC |
2707 | unsigned int prefixlen = 0; |
2708 | unsigned int suffixlen = 0; | |
252e3346 | 2709 | __be32 tmp; |
cfcabdcc | 2710 | char *pos; |
1da177e4 | 2711 | |
222f1806 LC |
2712 | for (i = 0; i < 16; i++) |
2713 | ip[i] = 0; | |
1da177e4 LT |
2714 | |
2715 | for (;;) { | |
2716 | if (*s == ':') { | |
2717 | len++; | |
222f1806 LC |
2718 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2719 | s += 2; | |
1da177e4 LT |
2720 | len++; |
2721 | break; | |
2722 | } | |
2723 | s++; | |
2724 | } | |
1da177e4 | 2725 | |
cfcabdcc SH |
2726 | u = simple_strtoul(s, &pos, 16); |
2727 | i = pos - s; | |
222f1806 LC |
2728 | if (!i) |
2729 | return 0; | |
2730 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2731 | |
2732 | /* the last 4 bytes may be written as IPv4 address */ | |
2733 | ||
2734 | tmp = in_aton(s); | |
222f1806 LC |
2735 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2736 | return i + len; | |
1da177e4 LT |
2737 | } |
2738 | ip[prefixlen++] = (u >> 8); | |
2739 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2740 | s += i; |
2741 | len += i; | |
2742 | if (prefixlen == 16) | |
1da177e4 LT |
2743 | return len; |
2744 | } | |
2745 | ||
2746 | /* part 2, after "::" */ | |
2747 | for (;;) { | |
2748 | if (*s == ':') { | |
222f1806 | 2749 | if (suffixlen == 0) |
1da177e4 LT |
2750 | break; |
2751 | s++; | |
2752 | len++; | |
222f1806 | 2753 | } else if (suffixlen != 0) |
1da177e4 | 2754 | break; |
cfcabdcc SH |
2755 | |
2756 | u = simple_strtol(s, &pos, 16); | |
2757 | i = pos - s; | |
1da177e4 | 2758 | if (!i) { |
222f1806 LC |
2759 | if (*s) |
2760 | len--; | |
1da177e4 LT |
2761 | break; |
2762 | } | |
222f1806 | 2763 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2764 | tmp = in_aton(s); |
222f1806 LC |
2765 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2766 | sizeof(tmp)); | |
2767 | suffixlen += 4; | |
2768 | len += strlen(s); | |
1da177e4 LT |
2769 | break; |
2770 | } | |
2771 | suffix[suffixlen++] = (u >> 8); | |
2772 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2773 | s += i; |
2774 | len += i; | |
2775 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2776 | break; |
2777 | } | |
222f1806 LC |
2778 | for (i = 0; i < suffixlen; i++) |
2779 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2780 | return len; |
2781 | } | |
2782 | ||
222f1806 LC |
2783 | static char tohex(char hexdigit) |
2784 | { | |
2785 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2786 | } |
2787 | ||
222f1806 LC |
2788 | static int fmt_xlong(char *s, unsigned int i) |
2789 | { | |
2790 | char *bak = s; | |
2791 | *s = tohex((i >> 12) & 0xf); | |
2792 | if (s != bak || *s != '0') | |
2793 | ++s; | |
2794 | *s = tohex((i >> 8) & 0xf); | |
2795 | if (s != bak || *s != '0') | |
2796 | ++s; | |
2797 | *s = tohex((i >> 4) & 0xf); | |
2798 | if (s != bak || *s != '0') | |
2799 | ++s; | |
2800 | *s = tohex(i & 0xf); | |
2801 | return s - bak + 1; | |
1da177e4 LT |
2802 | } |
2803 | ||
222f1806 LC |
2804 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2805 | { | |
1da177e4 LT |
2806 | unsigned int len; |
2807 | unsigned int i; | |
2808 | unsigned int temp; | |
2809 | unsigned int compressing; | |
2810 | int j; | |
2811 | ||
222f1806 LC |
2812 | len = 0; |
2813 | compressing = 0; | |
2814 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2815 | |
2816 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2817 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2818 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2819 | temp = strlen(s); | |
2820 | return len + temp; | |
1da177e4 LT |
2821 | } |
2822 | #endif | |
222f1806 LC |
2823 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2824 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2825 | if (temp == 0) { |
2826 | if (!compressing) { | |
222f1806 LC |
2827 | compressing = 1; |
2828 | if (j == 0) { | |
2829 | *s++ = ':'; | |
2830 | ++len; | |
1da177e4 LT |
2831 | } |
2832 | } | |
2833 | } else { | |
2834 | if (compressing) { | |
222f1806 LC |
2835 | compressing = 0; |
2836 | *s++ = ':'; | |
2837 | ++len; | |
1da177e4 | 2838 | } |
222f1806 LC |
2839 | i = fmt_xlong(s, temp); |
2840 | len += i; | |
2841 | s += i; | |
2842 | if (j < 14) { | |
1da177e4 LT |
2843 | *s++ = ':'; |
2844 | ++len; | |
2845 | } | |
2846 | } | |
2847 | } | |
2848 | if (compressing) { | |
222f1806 LC |
2849 | *s++ = ':'; |
2850 | ++len; | |
1da177e4 | 2851 | } |
222f1806 | 2852 | *s = 0; |
1da177e4 LT |
2853 | return len; |
2854 | } | |
2855 | ||
222f1806 LC |
2856 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2857 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2858 | { |
2859 | struct sk_buff *skb = NULL; | |
2860 | __u8 *eth; | |
2861 | struct udphdr *udph; | |
2862 | int datalen; | |
2863 | struct ipv6hdr *iph; | |
222f1806 | 2864 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2865 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2866 | __be32 *mpls; |
34954ddc FF |
2867 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2868 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2869 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2870 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2871 | u16 queue_map; |
ca6549af SW |
2872 | |
2873 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2874 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2875 | |
34954ddc | 2876 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2877 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2878 | |
64053bee RO |
2879 | /* Update any of the values, used when we're incrementing various |
2880 | * fields. | |
2881 | */ | |
fd2ea0a7 | 2882 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2883 | mod_cur_headers(pkt_dev); |
2884 | ||
e470757d SH |
2885 | skb = __netdev_alloc_skb(odev, |
2886 | pkt_dev->cur_pkt_size + 64 | |
2887 | + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2888 | if (!skb) { |
2889 | sprintf(pkt_dev->result, "No memory"); | |
2890 | return NULL; | |
2891 | } | |
2892 | ||
2893 | skb_reserve(skb, 16); | |
2894 | ||
2895 | /* Reserve for ethernet and IP header */ | |
2896 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2897 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2898 | if (pkt_dev->nr_labels) | |
2899 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2900 | |
2901 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2902 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2903 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2904 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2905 | pkt_dev->svlan_cfi, | |
2906 | pkt_dev->svlan_p); | |
34954ddc | 2907 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2908 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2909 | } |
2910 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2911 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2912 | pkt_dev->vlan_cfi, | |
2913 | pkt_dev->vlan_p); | |
34954ddc | 2914 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2915 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2916 | } |
2917 | ||
27a884dc | 2918 | skb->network_header = skb->tail; |
b0e380b1 | 2919 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2920 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2921 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2922 | iph = ipv6_hdr(skb); |
2923 | udph = udp_hdr(skb); | |
1da177e4 | 2924 | |
1da177e4 | 2925 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2926 | *(__be16 *) & eth[12] = protocol; |
64053bee | 2927 | |
ca6549af SW |
2928 | /* Eth + IPh + UDPh + mpls */ |
2929 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2930 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2931 | pkt_dev->pkt_overhead; |
1da177e4 | 2932 | |
222f1806 | 2933 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2934 | datalen = sizeof(struct pktgen_hdr); |
2935 | if (net_ratelimit()) | |
222f1806 LC |
2936 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2937 | datalen); | |
1da177e4 LT |
2938 | } |
2939 | ||
2940 | udph->source = htons(pkt_dev->cur_udp_src); | |
2941 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2942 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2943 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2944 | |
d5f1ce9a | 2945 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2946 | |
1ca7768c FF |
2947 | if (pkt_dev->traffic_class) { |
2948 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2949 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2950 | } |
2951 | ||
1da177e4 LT |
2952 | iph->hop_limit = 32; |
2953 | ||
2954 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2955 | iph->nexthdr = IPPROTO_UDP; | |
2956 | ||
2957 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2958 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2959 | ||
b0e380b1 | 2960 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2961 | pkt_dev->pkt_overhead); |
ca6549af | 2962 | skb->protocol = protocol; |
1da177e4 LT |
2963 | skb->dev = odev; |
2964 | skb->pkt_type = PACKET_HOST; | |
2965 | ||
222f1806 LC |
2966 | if (pkt_dev->nfrags <= 0) |
2967 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2968 | else { |
2969 | int frags = pkt_dev->nfrags; | |
2970 | int i; | |
2971 | ||
222f1806 LC |
2972 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2973 | ||
1da177e4 LT |
2974 | if (frags > MAX_SKB_FRAGS) |
2975 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2976 | if (datalen > frags * PAGE_SIZE) { |
2977 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2978 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2979 | } |
2980 | ||
2981 | i = 0; | |
2982 | while (datalen > 0) { | |
2983 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2984 | skb_shinfo(skb)->frags[i].page = page; | |
2985 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2986 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2987 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2988 | datalen -= skb_shinfo(skb)->frags[i].size; |
2989 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2990 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2991 | i++; | |
2992 | skb_shinfo(skb)->nr_frags = i; | |
2993 | } | |
2994 | ||
2995 | while (i < frags) { | |
2996 | int rem; | |
2997 | ||
2998 | if (i == 0) | |
2999 | break; | |
3000 | ||
3001 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
3002 | if (rem == 0) | |
3003 | break; | |
3004 | ||
3005 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
3006 | ||
222f1806 LC |
3007 | skb_shinfo(skb)->frags[i] = |
3008 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 3009 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
3010 | skb_shinfo(skb)->frags[i].page = |
3011 | skb_shinfo(skb)->frags[i - 1].page; | |
3012 | skb_shinfo(skb)->frags[i].page_offset += | |
3013 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
3014 | skb_shinfo(skb)->frags[i].size = rem; |
3015 | i++; | |
3016 | skb_shinfo(skb)->nr_frags = i; | |
3017 | } | |
3018 | } | |
3019 | ||
222f1806 | 3020 | /* Stamp the time, and sequence number, convert them to network byte order */ |
1da177e4 | 3021 | /* should we update cloned packets too ? */ |
222f1806 LC |
3022 | if (pgh) { |
3023 | struct timeval timestamp; | |
3024 | ||
3025 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
3026 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
3027 | ||
3028 | do_gettimeofday(×tamp); | |
3029 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
3030 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
3031 | } | |
34954ddc | 3032 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 3033 | |
1da177e4 LT |
3034 | return skb; |
3035 | } | |
3036 | ||
475ac1e4 SH |
3037 | static struct sk_buff *fill_packet(struct net_device *odev, |
3038 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3039 | { |
222f1806 | 3040 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
3041 | return fill_packet_ipv6(odev, pkt_dev); |
3042 | else | |
3043 | return fill_packet_ipv4(odev, pkt_dev); | |
3044 | } | |
3045 | ||
222f1806 | 3046 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 3047 | { |
222f1806 LC |
3048 | pkt_dev->seq_num = 1; |
3049 | pkt_dev->idle_acc = 0; | |
1da177e4 | 3050 | pkt_dev->sofar = 0; |
222f1806 LC |
3051 | pkt_dev->tx_bytes = 0; |
3052 | pkt_dev->errors = 0; | |
1da177e4 LT |
3053 | } |
3054 | ||
3055 | /* Set up structure for sending pkts, clear counters */ | |
3056 | ||
3057 | static void pktgen_run(struct pktgen_thread *t) | |
3058 | { | |
c26a8016 | 3059 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
3060 | int started = 0; |
3061 | ||
25c4e53a | 3062 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
3063 | |
3064 | if_lock(t); | |
c26a8016 | 3065 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3066 | |
3067 | /* | |
3068 | * setup odev and create initial packet. | |
3069 | */ | |
3070 | pktgen_setup_inject(pkt_dev); | |
3071 | ||
222f1806 | 3072 | if (pkt_dev->odev) { |
1da177e4 | 3073 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3074 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 | 3075 | pkt_dev->skb = NULL; |
fd29cf72 SH |
3076 | pkt_dev->started_at = |
3077 | pkt_dev->next_tx = ktime_now(); | |
3078 | ||
16dab72f | 3079 | set_pkt_overhead(pkt_dev); |
222f1806 | 3080 | |
1da177e4 LT |
3081 | strcpy(pkt_dev->result, "Starting"); |
3082 | started++; | |
222f1806 | 3083 | } else |
1da177e4 LT |
3084 | strcpy(pkt_dev->result, "Error starting"); |
3085 | } | |
3086 | if_unlock(t); | |
222f1806 LC |
3087 | if (started) |
3088 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3089 | } |
3090 | ||
3091 | static void pktgen_stop_all_threads_ifs(void) | |
3092 | { | |
cdcdbe0b | 3093 | struct pktgen_thread *t; |
1da177e4 | 3094 | |
25c4e53a | 3095 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3096 | |
6146e6a4 | 3097 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3098 | |
3099 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3100 | t->control |= T_STOP; |
cdcdbe0b | 3101 | |
6146e6a4 | 3102 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3103 | } |
3104 | ||
648fda74 | 3105 | static int thread_is_running(const struct pktgen_thread *t) |
1da177e4 | 3106 | { |
648fda74 | 3107 | const struct pktgen_dev *pkt_dev; |
1da177e4 | 3108 | |
c26a8016 | 3109 | list_for_each_entry(pkt_dev, &t->if_list, list) |
648fda74 SH |
3110 | if (pkt_dev->running) |
3111 | return 1; | |
3112 | return 0; | |
1da177e4 LT |
3113 | } |
3114 | ||
222f1806 | 3115 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3116 | { |
222f1806 | 3117 | if_lock(t); |
1da177e4 | 3118 | |
222f1806 | 3119 | while (thread_is_running(t)) { |
1da177e4 | 3120 | |
222f1806 | 3121 | if_unlock(t); |
1da177e4 | 3122 | |
222f1806 | 3123 | msleep_interruptible(100); |
1da177e4 | 3124 | |
222f1806 LC |
3125 | if (signal_pending(current)) |
3126 | goto signal; | |
3127 | if_lock(t); | |
3128 | } | |
3129 | if_unlock(t); | |
3130 | return 1; | |
3131 | signal: | |
3132 | return 0; | |
1da177e4 LT |
3133 | } |
3134 | ||
3135 | static int pktgen_wait_all_threads_run(void) | |
3136 | { | |
cdcdbe0b | 3137 | struct pktgen_thread *t; |
1da177e4 | 3138 | int sig = 1; |
222f1806 | 3139 | |
6146e6a4 | 3140 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3141 | |
3142 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3143 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3144 | if (sig == 0) |
3145 | break; | |
1da177e4 | 3146 | } |
cdcdbe0b LC |
3147 | |
3148 | if (sig == 0) | |
3149 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3150 | t->control |= (T_STOP); |
cdcdbe0b | 3151 | |
6146e6a4 | 3152 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3153 | return sig; |
3154 | } | |
3155 | ||
3156 | static void pktgen_run_all_threads(void) | |
3157 | { | |
cdcdbe0b | 3158 | struct pktgen_thread *t; |
1da177e4 | 3159 | |
25c4e53a | 3160 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3161 | |
6146e6a4 | 3162 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3163 | |
cdcdbe0b | 3164 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3165 | t->control |= (T_RUN); |
cdcdbe0b | 3166 | |
6146e6a4 | 3167 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3168 | |
222f1806 LC |
3169 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
3170 | ||
1da177e4 LT |
3171 | pktgen_wait_all_threads_run(); |
3172 | } | |
3173 | ||
eb37b41c JB |
3174 | static void pktgen_reset_all_threads(void) |
3175 | { | |
3176 | struct pktgen_thread *t; | |
3177 | ||
3178 | pr_debug("pktgen: entering pktgen_reset_all_threads.\n"); | |
3179 | ||
3180 | mutex_lock(&pktgen_thread_lock); | |
3181 | ||
3182 | list_for_each_entry(t, &pktgen_threads, th_list) | |
3183 | t->control |= (T_REMDEVALL); | |
3184 | ||
3185 | mutex_unlock(&pktgen_thread_lock); | |
3186 | ||
3187 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ | |
3188 | ||
3189 | pktgen_wait_all_threads_run(); | |
3190 | } | |
3191 | ||
1da177e4 LT |
3192 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3193 | { | |
fd29cf72 | 3194 | __u64 bps, mbps, pps; |
222f1806 | 3195 | char *p = pkt_dev->result; |
fd29cf72 SH |
3196 | ktime_t elapsed = ktime_sub(pkt_dev->stopped_at, |
3197 | pkt_dev->started_at); | |
3198 | ktime_t idle = ns_to_ktime(pkt_dev->idle_acc); | |
3199 | ||
3200 | p += sprintf(p, "OK: %llu(c%llu+d%llu) nsec, %llu (%dbyte,%dfrags)\n", | |
3201 | (unsigned long long)ktime_to_us(elapsed), | |
3202 | (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)), | |
3203 | (unsigned long long)ktime_to_us(idle), | |
222f1806 LC |
3204 | (unsigned long long)pkt_dev->sofar, |
3205 | pkt_dev->cur_pkt_size, nr_frags); | |
3206 | ||
fd29cf72 SH |
3207 | pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, |
3208 | ktime_to_ns(elapsed)); | |
222f1806 LC |
3209 | |
3210 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3211 | ||
3212 | mbps = bps; | |
3213 | do_div(mbps, 1000000); | |
3214 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3215 | (unsigned long long)pps, | |
3216 | (unsigned long long)mbps, | |
3217 | (unsigned long long)bps, | |
3218 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3219 | } |
1da177e4 LT |
3220 | |
3221 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
222f1806 | 3222 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3223 | { |
222f1806 | 3224 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3225 | |
222f1806 | 3226 | if (!pkt_dev->running) { |
25a8b254 DM |
3227 | printk(KERN_WARNING "pktgen: interface: %s is already " |
3228 | "stopped\n", pkt_dev->odev->name); | |
222f1806 LC |
3229 | return -EINVAL; |
3230 | } | |
1da177e4 | 3231 | |
3bda06a3 SH |
3232 | kfree_skb(pkt_dev->skb); |
3233 | pkt_dev->skb = NULL; | |
fd29cf72 | 3234 | pkt_dev->stopped_at = ktime_now(); |
222f1806 | 3235 | pkt_dev->running = 0; |
1da177e4 | 3236 | |
95ed63f7 | 3237 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3238 | |
222f1806 | 3239 | return 0; |
1da177e4 LT |
3240 | } |
3241 | ||
222f1806 | 3242 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3243 | { |
c26a8016 | 3244 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3245 | |
1da177e4 LT |
3246 | if_lock(t); |
3247 | ||
c26a8016 LC |
3248 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3249 | if (!pkt_dev->running) | |
222f1806 LC |
3250 | continue; |
3251 | if (best == NULL) | |
c26a8016 | 3252 | best = pkt_dev; |
fd29cf72 | 3253 | else if (ktime_lt(pkt_dev->next_tx, best->next_tx)) |
c26a8016 | 3254 | best = pkt_dev; |
1da177e4 LT |
3255 | } |
3256 | if_unlock(t); | |
222f1806 | 3257 | return best; |
1da177e4 LT |
3258 | } |
3259 | ||
222f1806 LC |
3260 | static void pktgen_stop(struct pktgen_thread *t) |
3261 | { | |
c26a8016 | 3262 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3263 | |
25c4e53a | 3264 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3265 | |
222f1806 | 3266 | if_lock(t); |
1da177e4 | 3267 | |
c26a8016 LC |
3268 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3269 | pktgen_stop_device(pkt_dev); | |
95ed63f7 | 3270 | } |
1da177e4 | 3271 | |
222f1806 | 3272 | if_unlock(t); |
1da177e4 LT |
3273 | } |
3274 | ||
95ed63f7 AK |
3275 | /* |
3276 | * one of our devices needs to be removed - find it | |
3277 | * and remove it | |
3278 | */ | |
3279 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3280 | { | |
c26a8016 LC |
3281 | struct list_head *q, *n; |
3282 | struct pktgen_dev *cur; | |
95ed63f7 | 3283 | |
25c4e53a | 3284 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3285 | |
3286 | if_lock(t); | |
3287 | ||
c26a8016 LC |
3288 | list_for_each_safe(q, n, &t->if_list) { |
3289 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3290 | |
222f1806 LC |
3291 | if (!cur->removal_mark) |
3292 | continue; | |
95ed63f7 | 3293 | |
86dc1ad2 | 3294 | kfree_skb(cur->skb); |
95ed63f7 AK |
3295 | cur->skb = NULL; |
3296 | ||
3297 | pktgen_remove_device(t, cur); | |
3298 | ||
3299 | break; | |
3300 | } | |
3301 | ||
3302 | if_unlock(t); | |
3303 | } | |
3304 | ||
222f1806 | 3305 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3306 | { |
c26a8016 LC |
3307 | struct list_head *q, *n; |
3308 | struct pktgen_dev *cur; | |
222f1806 LC |
3309 | |
3310 | /* Remove all devices, free mem */ | |
95ed63f7 | 3311 | |
25c4e53a | 3312 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3313 | if_lock(t); |
1da177e4 | 3314 | |
c26a8016 LC |
3315 | list_for_each_safe(q, n, &t->if_list) { |
3316 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3317 | |
86dc1ad2 | 3318 | kfree_skb(cur->skb); |
95ed63f7 AK |
3319 | cur->skb = NULL; |
3320 | ||
1da177e4 LT |
3321 | pktgen_remove_device(t, cur); |
3322 | } | |
3323 | ||
222f1806 | 3324 | if_unlock(t); |
1da177e4 LT |
3325 | } |
3326 | ||
222f1806 | 3327 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3328 | { |
222f1806 | 3329 | /* Remove from the thread list */ |
1da177e4 | 3330 | |
ee74baa7 | 3331 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3332 | |
6146e6a4 | 3333 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3334 | |
cdcdbe0b LC |
3335 | list_del(&t->th_list); |
3336 | ||
6146e6a4 | 3337 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3338 | } |
3339 | ||
3791decb SH |
3340 | static void idle(struct pktgen_dev *pkt_dev) |
3341 | { | |
fd29cf72 | 3342 | ktime_t idle_start = ktime_now(); |
3791decb SH |
3343 | |
3344 | if (need_resched()) | |
3345 | schedule(); | |
3346 | else | |
3347 | cpu_relax(); | |
3348 | ||
fd29cf72 | 3349 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); |
3791decb SH |
3350 | } |
3351 | ||
fd29cf72 | 3352 | |
475ac1e4 | 3353 | static void pktgen_xmit(struct pktgen_dev *pkt_dev) |
1da177e4 | 3354 | { |
00829823 SH |
3355 | struct net_device *odev = pkt_dev->odev; |
3356 | int (*xmit)(struct sk_buff *, struct net_device *) | |
3357 | = odev->netdev_ops->ndo_start_xmit; | |
fd2ea0a7 | 3358 | struct netdev_queue *txq; |
fd2ea0a7 | 3359 | u16 queue_map; |
1da177e4 LT |
3360 | int ret; |
3361 | ||
fd29cf72 SH |
3362 | if (pkt_dev->delay) { |
3363 | if (ktime_lt(ktime_now(), pkt_dev->next_tx)) | |
3364 | spin(pkt_dev, pkt_dev->next_tx); | |
1da177e4 LT |
3365 | |
3366 | /* This is max DELAY, this has special meaning of | |
3367 | * "never transmit" | |
3368 | */ | |
fd29cf72 SH |
3369 | if (pkt_dev->delay == ULLONG_MAX) { |
3370 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX); | |
3791decb | 3371 | return; |
1da177e4 LT |
3372 | } |
3373 | } | |
222f1806 | 3374 | |
fd2ea0a7 DM |
3375 | if (!pkt_dev->skb) { |
3376 | set_cur_queue_map(pkt_dev); | |
3377 | queue_map = pkt_dev->cur_queue_map; | |
3378 | } else { | |
3379 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3380 | } | |
3381 | ||
3382 | txq = netdev_get_tx_queue(odev, queue_map); | |
3791decb SH |
3383 | /* Did we saturate the queue already? */ |
3384 | if (netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq)) { | |
3385 | /* If device is down, then all queues are permnantly frozen */ | |
3386 | if (netif_running(odev)) | |
3387 | idle(pkt_dev); | |
3388 | else | |
1da177e4 | 3389 | pktgen_stop_device(pkt_dev); |
3791decb | 3390 | return; |
1da177e4 | 3391 | } |
222f1806 | 3392 | |
7d7bb1cf SH |
3393 | if (!pkt_dev->skb || (pkt_dev->last_ok && |
3394 | ++pkt_dev->clone_count >= pkt_dev->clone_skb)) { | |
3395 | /* build a new pkt */ | |
3396 | kfree_skb(pkt_dev->skb); | |
3397 | ||
3398 | pkt_dev->skb = fill_packet(odev, pkt_dev); | |
3399 | if (pkt_dev->skb == NULL) { | |
3400 | printk(KERN_ERR "pktgen: ERROR: couldn't " | |
3401 | "allocate skb in fill_packet.\n"); | |
3402 | schedule(); | |
3403 | pkt_dev->clone_count--; /* back out increment, OOM */ | |
3404 | return; | |
1da177e4 | 3405 | } |
7d7bb1cf SH |
3406 | |
3407 | pkt_dev->allocated_skbs++; | |
3408 | pkt_dev->clone_count = 0; /* reset counter */ | |
1da177e4 | 3409 | } |
95ed63f7 | 3410 | |
fd2ea0a7 DM |
3411 | /* fill_packet() might have changed the queue */ |
3412 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3413 | txq = netdev_get_tx_queue(odev, queue_map); | |
3414 | ||
3415 | __netif_tx_lock_bh(txq); | |
3791decb SH |
3416 | if (unlikely(netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq))) |
3417 | pkt_dev->last_ok = 0; | |
3418 | else { | |
1da177e4 | 3419 | atomic_inc(&(pkt_dev->skb->users)); |
5b8db2f5 SH |
3420 | |
3421 | retry_now: | |
00829823 | 3422 | ret = (*xmit)(pkt_dev->skb, odev); |
5b8db2f5 SH |
3423 | switch (ret) { |
3424 | case NETDEV_TX_OK: | |
08baf561 | 3425 | txq_trans_update(txq); |
222f1806 | 3426 | pkt_dev->last_ok = 1; |
1da177e4 LT |
3427 | pkt_dev->sofar++; |
3428 | pkt_dev->seq_num++; | |
3429 | pkt_dev->tx_bytes += pkt_dev->cur_pkt_size; | |
5b8db2f5 SH |
3430 | break; |
3431 | case NETDEV_TX_LOCKED: | |
1da177e4 LT |
3432 | cpu_relax(); |
3433 | goto retry_now; | |
5b8db2f5 SH |
3434 | default: /* Drivers are not supposed to return other values! */ |
3435 | if (net_ratelimit()) | |
3436 | pr_info("pktgen: %s xmit error: %d\n", | |
3437 | odev->name, ret); | |
1da177e4 | 3438 | pkt_dev->errors++; |
5b8db2f5 SH |
3439 | /* fallthru */ |
3440 | case NETDEV_TX_BUSY: | |
3441 | /* Retry it next time */ | |
3442 | atomic_dec(&(pkt_dev->skb->users)); | |
1da177e4 LT |
3443 | pkt_dev->last_ok = 0; |
3444 | } | |
3445 | ||
fd29cf72 SH |
3446 | if (pkt_dev->delay) |
3447 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), | |
3448 | pkt_dev->delay); | |
222f1806 | 3449 | } |
fd2ea0a7 | 3450 | __netif_tx_unlock_bh(txq); |
222f1806 | 3451 | |
1da177e4 LT |
3452 | /* If pkt_dev->count is zero, then run forever */ |
3453 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
3454 | if (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
fd29cf72 | 3455 | ktime_t idle_start = ktime_now(); |
1da177e4 LT |
3456 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { |
3457 | if (signal_pending(current)) { | |
3458 | break; | |
3459 | } | |
3460 | schedule(); | |
3461 | } | |
fd29cf72 SH |
3462 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), |
3463 | idle_start)); | |
1da177e4 | 3464 | } |
222f1806 | 3465 | |
1da177e4 LT |
3466 | /* Done with this */ |
3467 | pktgen_stop_device(pkt_dev); | |
222f1806 | 3468 | } |
222f1806 | 3469 | } |
1da177e4 | 3470 | |
4ec93edb | 3471 | /* |
1da177e4 LT |
3472 | * Main loop of the thread goes here |
3473 | */ | |
3474 | ||
ee74baa7 | 3475 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3476 | { |
3477 | DEFINE_WAIT(wait); | |
ee74baa7 | 3478 | struct pktgen_thread *t = arg; |
222f1806 | 3479 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3480 | int cpu = t->cpu; |
1da177e4 | 3481 | |
ee74baa7 | 3482 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3483 | |
3484 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3485 | complete(&t->start_done); |
1da177e4 | 3486 | |
ba25f9dc | 3487 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", cpu, task_pid_nr(current)); |
1da177e4 | 3488 | |
ee74baa7 | 3489 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3490 | |
83144186 RW |
3491 | set_freezable(); |
3492 | ||
ee74baa7 DM |
3493 | while (!kthread_should_stop()) { |
3494 | pkt_dev = next_to_run(t); | |
1da177e4 | 3495 | |
ee74baa7 DM |
3496 | if (!pkt_dev && |
3497 | (t->control & (T_STOP | T_RUN | T_REMDEVALL | T_REMDEV)) | |
3498 | == 0) { | |
3499 | prepare_to_wait(&(t->queue), &wait, | |
3500 | TASK_INTERRUPTIBLE); | |
3501 | schedule_timeout(HZ / 10); | |
3502 | finish_wait(&(t->queue), &wait); | |
3503 | } | |
1da177e4 | 3504 | |
ee74baa7 | 3505 | __set_current_state(TASK_RUNNING); |
222f1806 | 3506 | |
b163911f | 3507 | if (pkt_dev) |
1da177e4 LT |
3508 | pktgen_xmit(pkt_dev); |
3509 | ||
222f1806 | 3510 | if (t->control & T_STOP) { |
1da177e4 LT |
3511 | pktgen_stop(t); |
3512 | t->control &= ~(T_STOP); | |
3513 | } | |
3514 | ||
222f1806 | 3515 | if (t->control & T_RUN) { |
1da177e4 LT |
3516 | pktgen_run(t); |
3517 | t->control &= ~(T_RUN); | |
3518 | } | |
3519 | ||
222f1806 | 3520 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3521 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3522 | t->control &= ~(T_REMDEVALL); |
3523 | } | |
3524 | ||
222f1806 | 3525 | if (t->control & T_REMDEV) { |
95ed63f7 | 3526 | pktgen_rem_one_if(t); |
1da177e4 LT |
3527 | t->control &= ~(T_REMDEV); |
3528 | } | |
3529 | ||
09fe3ef4 AM |
3530 | try_to_freeze(); |
3531 | ||
ee74baa7 | 3532 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3533 | } |
1da177e4 | 3534 | |
25c4e53a | 3535 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3536 | pktgen_stop(t); |
1da177e4 | 3537 | |
25c4e53a | 3538 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3539 | pktgen_rem_all_ifs(t); |
1da177e4 | 3540 | |
25c4e53a | 3541 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3542 | pktgen_rem_thread(t); |
cdcdbe0b | 3543 | |
ee74baa7 | 3544 | return 0; |
1da177e4 LT |
3545 | } |
3546 | ||
222f1806 LC |
3547 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3548 | const char *ifname) | |
1da177e4 | 3549 | { |
c26a8016 | 3550 | struct pktgen_dev *p, *pkt_dev = NULL; |
222f1806 LC |
3551 | if_lock(t); |
3552 | ||
c26a8016 | 3553 | list_for_each_entry(p, &t->if_list, list) |
39df232f | 3554 | if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) { |
c26a8016 | 3555 | pkt_dev = p; |
222f1806 LC |
3556 | break; |
3557 | } | |
222f1806 LC |
3558 | |
3559 | if_unlock(t); | |
25c4e53a | 3560 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3561 | return pkt_dev; |
1da177e4 LT |
3562 | } |
3563 | ||
4ec93edb YH |
3564 | /* |
3565 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3566 | */ |
3567 | ||
222f1806 LC |
3568 | static int add_dev_to_thread(struct pktgen_thread *t, |
3569 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3570 | { |
3571 | int rv = 0; | |
222f1806 LC |
3572 | |
3573 | if_lock(t); | |
3574 | ||
3575 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3576 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3577 | "to a thread.\n"); | |
222f1806 LC |
3578 | rv = -EBUSY; |
3579 | goto out; | |
3580 | } | |
c26a8016 LC |
3581 | |
3582 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3583 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3584 | pkt_dev->running = 0; |
3585 | ||
222f1806 LC |
3586 | out: |
3587 | if_unlock(t); | |
3588 | return rv; | |
1da177e4 LT |
3589 | } |
3590 | ||
3591 | /* Called under thread lock */ | |
3592 | ||
222f1806 | 3593 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3594 | { |
222f1806 | 3595 | struct pktgen_dev *pkt_dev; |
39df232f | 3596 | int err; |
222f1806 | 3597 | |
1da177e4 LT |
3598 | /* We don't allow a device to be on several threads */ |
3599 | ||
d50a6b56 SH |
3600 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3601 | if (pkt_dev) { | |
25a8b254 | 3602 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3603 | return -EBUSY; |
3604 | } | |
d50a6b56 SH |
3605 | |
3606 | pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL); | |
3607 | if (!pkt_dev) | |
3608 | return -ENOMEM; | |
3609 | ||
222f1806 | 3610 | pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 SH |
3611 | if (pkt_dev->flows == NULL) { |
3612 | kfree(pkt_dev); | |
3613 | return -ENOMEM; | |
3614 | } | |
222f1806 | 3615 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3616 | |
95ed63f7 | 3617 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3618 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3619 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3620 | pkt_dev->nfrags = 0; | |
3621 | pkt_dev->clone_skb = pg_clone_skb_d; | |
fd29cf72 | 3622 | pkt_dev->delay = pg_delay_d; |
d50a6b56 SH |
3623 | pkt_dev->count = pg_count_d; |
3624 | pkt_dev->sofar = 0; | |
222f1806 | 3625 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3626 | pkt_dev->udp_src_max = 9; |
3627 | pkt_dev->udp_dst_min = 9; | |
3628 | pkt_dev->udp_dst_max = 9; | |
3629 | ||
34954ddc FF |
3630 | pkt_dev->vlan_p = 0; |
3631 | pkt_dev->vlan_cfi = 0; | |
3632 | pkt_dev->vlan_id = 0xffff; | |
3633 | pkt_dev->svlan_p = 0; | |
3634 | pkt_dev->svlan_cfi = 0; | |
3635 | pkt_dev->svlan_id = 0xffff; | |
3636 | ||
39df232f SH |
3637 | err = pktgen_setup_dev(pkt_dev, ifname); |
3638 | if (err) | |
3639 | goto out1; | |
d50a6b56 | 3640 | |
5efdccbc DL |
3641 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3642 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3643 | if (!pkt_dev->entry) { |
25a8b254 | 3644 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3645 | PG_PROC_DIR, ifname); |
39df232f SH |
3646 | err = -EINVAL; |
3647 | goto out2; | |
d50a6b56 | 3648 | } |
a553e4a6 JHS |
3649 | #ifdef CONFIG_XFRM |
3650 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3651 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3652 | #endif | |
d50a6b56 SH |
3653 | |
3654 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3655 | out2: |
3656 | dev_put(pkt_dev->odev); | |
3657 | out1: | |
a553e4a6 JHS |
3658 | #ifdef CONFIG_XFRM |
3659 | free_SAs(pkt_dev); | |
3660 | #endif | |
1d0ebfe7 | 3661 | vfree(pkt_dev->flows); |
39df232f SH |
3662 | kfree(pkt_dev); |
3663 | return err; | |
1da177e4 LT |
3664 | } |
3665 | ||
ee74baa7 | 3666 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3667 | { |
cdcdbe0b | 3668 | struct pktgen_thread *t; |
d50a6b56 | 3669 | struct proc_dir_entry *pe; |
ee74baa7 | 3670 | struct task_struct *p; |
222f1806 LC |
3671 | |
3672 | t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL); | |
3673 | if (!t) { | |
25a8b254 DM |
3674 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3675 | "create new thread.\n"); | |
222f1806 LC |
3676 | return -ENOMEM; |
3677 | } | |
3678 | ||
222f1806 | 3679 | spin_lock_init(&t->if_lock); |
1da177e4 | 3680 | t->cpu = cpu; |
222f1806 | 3681 | |
ee74baa7 DM |
3682 | INIT_LIST_HEAD(&t->if_list); |
3683 | ||
3684 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3685 | init_completion(&t->start_done); |
ee74baa7 DM |
3686 | |
3687 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3688 | if (IS_ERR(p)) { | |
25a8b254 DM |
3689 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3690 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3691 | list_del(&t->th_list); |
3692 | kfree(t); | |
3693 | return PTR_ERR(p); | |
3694 | } | |
3695 | kthread_bind(p, cpu); | |
3696 | t->tsk = p; | |
3697 | ||
5efdccbc DL |
3698 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3699 | &pktgen_thread_fops, t); | |
222f1806 | 3700 | if (!pe) { |
25a8b254 | 3701 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3702 | PG_PROC_DIR, t->tsk->comm); |
3703 | kthread_stop(p); | |
3704 | list_del(&t->th_list); | |
222f1806 LC |
3705 | kfree(t); |
3706 | return -EINVAL; | |
3707 | } | |
d50a6b56 | 3708 | |
ee74baa7 | 3709 | wake_up_process(p); |
d3ede327 | 3710 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3711 | |
3712 | return 0; | |
3713 | } | |
3714 | ||
4ec93edb YH |
3715 | /* |
3716 | * Removes a device from the thread if_list. | |
1da177e4 | 3717 | */ |
222f1806 LC |
3718 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3719 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3720 | { |
c26a8016 LC |
3721 | struct list_head *q, *n; |
3722 | struct pktgen_dev *p; | |
1da177e4 | 3723 | |
c26a8016 LC |
3724 | list_for_each_safe(q, n, &t->if_list) { |
3725 | p = list_entry(q, struct pktgen_dev, list); | |
3726 | if (p == pkt_dev) | |
3727 | list_del(&p->list); | |
1da177e4 LT |
3728 | } |
3729 | } | |
3730 | ||
222f1806 LC |
3731 | static int pktgen_remove_device(struct pktgen_thread *t, |
3732 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3733 | { |
3734 | ||
25c4e53a | 3735 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3736 | |
222f1806 | 3737 | if (pkt_dev->running) { |
25a8b254 DM |
3738 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3739 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3740 | pktgen_stop_device(pkt_dev); |
3741 | } | |
3742 | ||
3743 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3744 | |
3745 | if (pkt_dev->odev) { | |
3746 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3747 | pkt_dev->odev = NULL; |
3748 | } | |
3749 | ||
1da177e4 LT |
3750 | /* And update the thread if_list */ |
3751 | ||
3752 | _rem_dev_from_if_list(t, pkt_dev); | |
3753 | ||
39df232f SH |
3754 | if (pkt_dev->entry) |
3755 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3756 | |
a553e4a6 JHS |
3757 | #ifdef CONFIG_XFRM |
3758 | free_SAs(pkt_dev); | |
3759 | #endif | |
1d0ebfe7 | 3760 | vfree(pkt_dev->flows); |
1da177e4 | 3761 | kfree(pkt_dev); |
222f1806 | 3762 | return 0; |
1da177e4 LT |
3763 | } |
3764 | ||
222f1806 | 3765 | static int __init pg_init(void) |
1da177e4 LT |
3766 | { |
3767 | int cpu; | |
d50a6b56 | 3768 | struct proc_dir_entry *pe; |
1da177e4 | 3769 | |
25a8b254 | 3770 | printk(KERN_INFO "%s", version); |
1da177e4 | 3771 | |
457c4cbc | 3772 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3773 | if (!pg_proc_dir) |
3774 | return -ENODEV; | |
1da177e4 | 3775 | |
25296d59 | 3776 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3777 | if (pe == NULL) { |
25a8b254 DM |
3778 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3779 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3780 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3781 | return -EINVAL; |
3782 | } | |
1da177e4 | 3783 | |
1da177e4 LT |
3784 | /* Register us to receive netdevice events */ |
3785 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3786 | |
670c02c2 | 3787 | for_each_online_cpu(cpu) { |
8024bb24 | 3788 | int err; |
1da177e4 | 3789 | |
ee74baa7 | 3790 | err = pktgen_create_thread(cpu); |
8024bb24 | 3791 | if (err) |
25a8b254 DM |
3792 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3793 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3794 | } |
8024bb24 LC |
3795 | |
3796 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3797 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3798 | "all threads\n"); | |
8024bb24 LC |
3799 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3800 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3801 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3802 | return -ENODEV; |
3803 | } | |
3804 | ||
222f1806 | 3805 | return 0; |
1da177e4 LT |
3806 | } |
3807 | ||
3808 | static void __exit pg_cleanup(void) | |
3809 | { | |
cdcdbe0b LC |
3810 | struct pktgen_thread *t; |
3811 | struct list_head *q, *n; | |
1da177e4 LT |
3812 | wait_queue_head_t queue; |
3813 | init_waitqueue_head(&queue); | |
3814 | ||
222f1806 | 3815 | /* Stop all interfaces & threads */ |
1da177e4 | 3816 | |
cdcdbe0b LC |
3817 | list_for_each_safe(q, n, &pktgen_threads) { |
3818 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3819 | kthread_stop(t->tsk); |
3820 | kfree(t); | |
222f1806 | 3821 | } |
1da177e4 | 3822 | |
222f1806 | 3823 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3824 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3825 | ||
222f1806 | 3826 | /* Clean up proc file system */ |
d50a6b56 | 3827 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3828 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3829 | } |
3830 | ||
1da177e4 LT |
3831 | module_init(pg_init); |
3832 | module_exit(pg_cleanup); | |
3833 | ||
3834 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se"); | |
3835 | MODULE_DESCRIPTION("Packet Generator tool"); | |
3836 | MODULE_LICENSE("GPL"); | |
3837 | module_param(pg_count_d, int, 0); | |
3838 | module_param(pg_delay_d, int, 0); | |
3839 | module_param(pg_clone_skb_d, int, 0); | |
3840 | module_param(debug, int, 0); |