static int cgroup_parse_opt(struct filter_util *qu, char *handle,
int argc, char **argv, struct nlmsghdr *n)
{
struct tcmsg *t = NLMSG_DATA(n);
struct rtattr *tail;
long h = 0;
if (handle) {
h = strtol(handle, NULL, 0);
if (h == LONG_MIN || h == LONG_MAX) {
fprintf(stderr, "Illegal handle \"%s\", must be numeric.\n",
handle);
return -1;
}
}
t->tcm_handle = h;
tail = (struct rtattr*)(((void*)n)+NLMSG_ALIGN(n->nlmsg_len));
addattr_l(n, MAX_MSG, TCA_OPTIONS, NULL, 0);
while (argc > 0) {
if (matches(*argv, "match") == 0) {
NEXT_ARG();
if (parse_ematch(&argc, &argv, TCA_CGROUP_EMATCHES, n)) {
fprintf(stderr, "Illegal \"ematch\"\n");
return -1;
}
continue;
} else if (matches(*argv, "action") == 0) {
NEXT_ARG();
if (parse_action(&argc, &argv, TCA_CGROUP_ACT, n)) {
fprintf(stderr, "Illegal \"action\"\n");
return -1;
}
continue;
} else if (matches(*argv, "police") == 0) {
NEXT_ARG();
if (parse_police(&argc, &argv, TCA_CGROUP_POLICE, n)) {
fprintf(stderr, "Illegal \"police\"\n");
return -1;
}
continue;
} else if (strcmp(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "What is \"%s\"?\n", *argv);
explain();
return -1;
}
argc--; argv++;
}
tail->rta_len = (((void*)n)+n->nlmsg_len) - (void*)tail;
return 0;
}
static int flow_parse_opt(struct filter_util *fu, char *handle,
int argc, char **argv, struct nlmsghdr *n)
{
struct tc_police tp;
struct tcmsg *t = NLMSG_DATA(n);
struct rtattr *tail;
__u32 mask = ~0U, xor = 0;
__u32 keys = 0, nkeys = 0;
__u32 mode = FLOW_MODE_MAP;
__u32 tmp;
memset(&tp, 0, sizeof(tp));
if (handle) {
if (get_u32(&t->tcm_handle, handle, 0)) {
fprintf(stderr, "Illegal \"handle\"\n");
return -1;
}
}
tail = NLMSG_TAIL(n);
addattr_l(n, 4096, TCA_OPTIONS, NULL, 0);
while (argc > 0) {
if (matches(*argv, "map") == 0) {
mode = FLOW_MODE_MAP;
} else if (matches(*argv, "hash") == 0) {
mode = FLOW_MODE_HASH;
} else if (matches(*argv, "keys") == 0) {
NEXT_ARG();
if (flow_parse_keys(&keys, &nkeys, *argv))
return -1;
addattr32(n, 4096, TCA_FLOW_KEYS, keys);
} else if (matches(*argv, "and") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 0)) {
fprintf(stderr, "Illegal \"mask\"\n");
return -1;
}
transfer_bitop(&mask, &xor, tmp, 0);
} else if (matches(*argv, "or") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 0)) {
fprintf(stderr, "Illegal \"or\"\n");
return -1;
}
transfer_bitop(&mask, &xor, ~tmp, tmp);
} else if (matches(*argv, "xor") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 0)) {
fprintf(stderr, "Illegal \"xor\"\n");
return -1;
}
transfer_bitop(&mask, &xor, ~0, tmp);
} else if (matches(*argv, "rshift") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 0)) {
fprintf(stderr, "Illegal \"rshift\"\n");
return -1;
}
addattr32(n, 4096, TCA_FLOW_RSHIFT, tmp);
} else if (matches(*argv, "addend") == 0) {
NEXT_ARG();
if (get_addend(&tmp, *argv, keys)) {
fprintf(stderr, "Illegal \"addend\"\n");
return -1;
}
addattr32(n, 4096, TCA_FLOW_ADDEND, tmp);
} else if (matches(*argv, "divisor") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 0)) {
fprintf(stderr, "Illegal \"divisor\"\n");
return -1;
}
addattr32(n, 4096, TCA_FLOW_DIVISOR, tmp);
} else if (matches(*argv, "baseclass") == 0) {
NEXT_ARG();
if (get_tc_classid(&tmp, *argv) || TC_H_MIN(tmp) == 0) {
fprintf(stderr, "Illegal \"baseclass\"\n");
return -1;
}
addattr32(n, 4096, TCA_FLOW_BASECLASS, tmp);
} else if (matches(*argv, "perturb") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 0)) {
fprintf(stderr, "Illegal \"perturb\"\n");
return -1;
}
addattr32(n, 4096, TCA_FLOW_PERTURB, tmp);
} else if (matches(*argv, "police") == 0) {
NEXT_ARG();
if (parse_police(&argc, &argv, TCA_FLOW_POLICE, n)) {
fprintf(stderr, "Illegal \"police\"\n");
return -1;
}
continue;
} else if (matches(*argv, "action") == 0) {
NEXT_ARG();
if (parse_action(&argc, &argv, TCA_FLOW_ACT, n)) {
fprintf(stderr, "Illegal \"action\"\n");
return -1;
}
continue;
} else if (matches(*argv, "match") == 0) {
NEXT_ARG();
if (parse_ematch(&argc, &argv, TCA_FLOW_EMATCHES, n)) {
fprintf(stderr, "Illegal \"ematch\"\n");
return -1;
}
continue;
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "What is \"%s\"?\n", *argv);
explain();
return -1;
}
argv++, argc--;
}
if (nkeys > 1 && mode != FLOW_MODE_HASH) {
fprintf(stderr, "Invalid mode \"map\" for multiple keys\n");
return -1;
}
addattr32(n, 4096, TCA_FLOW_MODE, mode);
if (mask != ~0 || xor != 0) {
addattr32(n, 4096, TCA_FLOW_MASK, mask);
addattr32(n, 4096, TCA_FLOW_XOR, xor);
}
tail->rta_len = (void *)NLMSG_TAIL(n) - (void *)tail;
return 0;
}
