2 * m_gact.c generic actions module
4 * This program is free software; you can distribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: J Hadi Salim (hadi@cyberus.ca)
18 #include <sys/socket.h>
19 #include <netinet/in.h>
20 #include <arpa/inet.h>
25 #include <linux/tc_act/tc_gact.h>
27 /* define to turn on probablity stuff */
29 #ifdef CONFIG_GACT_PROB
30 static const char *prob_n2a(int p)
34 if (p == PGACT_NETRAND)
36 if (p == PGACT_DETERM)
45 #ifdef CONFIG_GACT_PROB
46 fprintf(stderr, "Usage: ... gact <ACTION> [RAND] [INDEX]\n");
48 "Where: \tACTION := reclassify | drop | continue | pass \n"
49 "\tRAND := random <RANDTYPE> <ACTION> <VAL>\n"
50 "\tRANDTYPE := netrand | determ\n"
51 "\tVAL : = value not exceeding 10000\n"
52 "\tINDEX := index value used\n"
55 fprintf(stderr, "Usage: ... gact <ACTION> [INDEX]\n");
57 "Where: \tACTION := reclassify | drop | continue | pass \n"
58 "\tINDEX := index value used\n"
72 get_act(char ***argv_p)
74 char **argv = *argv_p;
76 if (matches(*argv, "reclassify") == 0) {
77 return TC_ACT_RECLASSIFY;
78 } else if (matches(*argv, "drop") == 0 || matches(*argv, "shot") == 0) {
80 } else if (matches(*argv, "continue") == 0) {
82 } else if (matches(*argv, "pipe") == 0) {
84 } else if (matches(*argv, "pass") == 0 || matches(*argv, "ok") == 0) {
87 fprintf(stderr,"bad action type %s\n",*argv);
93 parse_gact(struct action_util *a, int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n)
96 char **argv = *argv_p;
98 int action = TC_POLICE_RECLASSIFY;
100 #ifdef CONFIG_GACT_PROB
106 memset(&p, 0, sizeof (p));
107 p.action = TC_POLICE_RECLASSIFY;
113 if (matches(*argv, "gact") == 0) {
116 action = get_act(&argv);
131 #ifdef CONFIG_GACT_PROB
132 if (ok && argc > 0) {
133 if (matches(*argv, "random") == 0) {
136 if (matches(*argv, "netrand") == 0) {
138 pp.ptype = PGACT_NETRAND;
139 } else if (matches(*argv, "determ") == 0) {
141 pp.ptype = PGACT_DETERM;
143 fprintf(stderr, "Illegal \"random type\"\n");
147 action = get_act(&argv);
148 if (action != -10) { /* FIXME */
156 if (get_u16(&pp.pval, *argv, 10)) {
157 fprintf(stderr, "Illegal probability val 0x%x\n",pp.pval);
160 if (pp.pval > 10000) {
161 fprintf(stderr, "Illegal probability val 0x%x\n",pp.pval);
166 } else if (matches(*argv, "help") == 0) {
173 if (matches(*argv, "index") == 0) {
175 if (get_u32(&p.index, *argv, 10)) {
176 fprintf(stderr, "Illegal \"index\"\n");
182 } else if (matches(*argv, "help") == 0) {
190 tail = NLMSG_TAIL(n);
191 addattr_l(n, MAX_MSG, tca_id, NULL, 0);
192 addattr_l(n, MAX_MSG, TCA_GACT_PARMS, &p, sizeof (p));
193 #ifdef CONFIG_GACT_PROB
195 addattr_l(n, MAX_MSG, TCA_GACT_PROB, &pp, sizeof (pp));
198 tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
206 print_gact(struct action_util *au,FILE * f, struct rtattr *arg)
209 #ifdef CONFIG_GACT_PROB
211 struct tc_gact_p *pp = NULL;
212 struct tc_gact_p pp_dummy;
214 struct tc_gact *p = NULL;
215 struct rtattr *tb[TCA_GACT_MAX + 1];
220 parse_rtattr_nested(tb, TCA_GACT_MAX, arg);
222 if (tb[TCA_GACT_PARMS] == NULL) {
223 fprintf(f, "[NULL gact parameters]");
226 p = RTA_DATA(tb[TCA_GACT_PARMS]);
228 fprintf(f, "gact action %s", action_n2a(p->action, b1, sizeof (b1)));
229 #ifdef CONFIG_GACT_PROB
230 if (NULL != tb[TCA_GACT_PROB]) {
231 pp = RTA_DATA(tb[TCA_GACT_PROB]);
233 /* need to keep consistent output */
234 memset(&pp_dummy, 0, sizeof (pp_dummy));
237 fprintf(f, "\n\t random type %s %s val %d",prob_n2a(pp->ptype), action_n2a(pp->paction, b2, sizeof (b2)), pp->pval);
239 fprintf(f, "\n\t index %d ref %d bind %d",p->index, p->refcnt, p->bindcnt);
241 if (tb[TCA_GACT_TM]) {
242 struct tcf_t *tm = RTA_DATA(tb[TCA_GACT_TM]);
250 struct action_util gact_action_util = {
252 .parse_aopt = parse_gact,
253 .print_aopt = print_gact,