diff options
| -rw-r--r-- | tc/Makefile | 1 | ||||
| -rw-r--r-- | tc/f_matchall.c | 143 |
2 files changed, 144 insertions, 0 deletions
diff --git a/tc/Makefile b/tc/Makefile index 42747c51..8917eaf4 100644 --- a/tc/Makefile +++ b/tc/Makefile @@ -67,6 +67,7 @@ TCMODULES += q_pie.o TCMODULES += q_hhf.o TCMODULES += q_clsact.o TCMODULES += e_bpf.o +TCMODULES += f_matchall.o ifeq ($(TC_CONFIG_IPSET), y) ifeq ($(TC_CONFIG_XT), y) diff --git a/tc/f_matchall.c b/tc/f_matchall.c new file mode 100644 index 00000000..04e524e3 --- /dev/null +++ b/tc/f_matchall.c @@ -0,0 +1,143 @@ +/* + * f_matchall.c Match-all Classifier + * + * This program is free software; you can distribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Authors: Jiri Pirko <jiri@mellanox.com>, Yotam Gigi <yotamg@mellanox.com> + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <syslog.h> +#include <fcntl.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <string.h> +#include <linux/if.h> + +#include "utils.h" +#include "tc_util.h" + +static void explain(void) +{ + fprintf(stderr, "Usage: ... matchall [skip_sw | skip_hw]\n"); + fprintf(stderr, " [ action ACTION_SPEC ] [ classid CLASSID ]\n"); + fprintf(stderr, "\n"); + fprintf(stderr, "Where: SELECTOR := SAMPLE SAMPLE ...\n"); + fprintf(stderr, " FILTERID := X:Y:Z\n"); + fprintf(stderr, " ACTION_SPEC := ... look at individual actions\n"); + fprintf(stderr, "\nNOTE: CLASSID is parsed as hexadecimal input.\n"); +} + +static int matchall_parse_opt(struct filter_util *qu, char *handle, + int argc, char **argv, struct nlmsghdr *n) +{ + struct tcmsg *t = NLMSG_DATA(n); + struct rtattr *tail; + __u32 flags = 0; + 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; + + if (argc == 0) + return 0; + + 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, "classid") == 0 || + strcmp(*argv, "flowid") == 0) { + unsigned int handle; + + NEXT_ARG(); + if (get_tc_classid(&handle, *argv)) { + fprintf(stderr, "Illegal \"classid\"\n"); + return -1; + } + addattr_l(n, MAX_MSG, TCA_MATCHALL_CLASSID, &handle, 4); + } else if (matches(*argv, "action") == 0) { + NEXT_ARG(); + if (parse_action(&argc, &argv, TCA_MATCHALL_ACT, n)) { + fprintf(stderr, "Illegal \"action\"\n"); + return -1; + } + continue; + + } else if (strcmp(*argv, "skip_hw") == 0) { + NEXT_ARG(); + flags |= TCA_CLS_FLAGS_SKIP_HW; + continue; + } else if (strcmp(*argv, "skip_sw") == 0) { + NEXT_ARG(); + flags |= TCA_CLS_FLAGS_SKIP_SW; + continue; + } else if (strcmp(*argv, "help") == 0) { + explain(); + return -1; + } else { + fprintf(stderr, "What is \"%s\"?\n", *argv); + explain(); + return -1; + } + argc--; argv++; + } + + if (flags) { + if (!(flags ^ (TCA_CLS_FLAGS_SKIP_HW | + TCA_CLS_FLAGS_SKIP_SW))) { + fprintf(stderr, + "skip_hw and skip_sw are mutually exclusive\n"); + return -1; + } + addattr_l(n, MAX_MSG, TCA_MATCHALL_FLAGS, &flags, 4); + } + + tail->rta_len = (((void *)n)+n->nlmsg_len) - (void *)tail; + return 0; +} + +static int matchall_print_opt(struct filter_util *qu, FILE *f, + struct rtattr *opt, __u32 handle) +{ + struct rtattr *tb[TCA_MATCHALL_MAX+1]; + + if (opt == NULL) + return 0; + + parse_rtattr_nested(tb, TCA_MATCHALL_MAX, opt); + + if (handle) + fprintf(f, "handle 0x%x ", handle); + + if (tb[TCA_MATCHALL_CLASSID]) { + SPRINT_BUF(b1); + fprintf(f, "flowid %s ", + sprint_tc_classid(rta_getattr_u32(tb[TCA_MATCHALL_CLASSID]), b1)); + } + + if (tb[TCA_MATCHALL_ACT]) + tc_print_action(f, tb[TCA_MATCHALL_ACT]); + + return 0; +} + +struct filter_util matchall_filter_util = { + .id = "matchall", + .parse_fopt = matchall_parse_opt, + .print_fopt = matchall_print_opt, +}; |