summaryrefslogtreecommitdiffstats
path: root/tc/f_matchall.c
diff options
context:
space:
mode:
Diffstat (limited to 'tc/f_matchall.c')
-rw-r--r--tc/f_matchall.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/tc/f_matchall.c b/tc/f_matchall.c
new file mode 100644
index 0000000..231d749
--- /dev/null
+++ b/tc/f_matchall.c
@@ -0,0 +1,172 @@
+/*
+ * 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 <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"
+ " [ action ACTION_SPEC ] [ classid CLASSID ]\n"
+ "\n"
+ "Where: SELECTOR := SAMPLE SAMPLE ...\n"
+ " FILTERID := X:Y:Z\n"
+ " ACTION_SPEC := ... look at individual actions\n"
+ "\n"
+ "NOTE: 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 classid;
+
+ NEXT_ARG();
+ if (get_tc_classid(&classid, *argv)) {
+ fprintf(stderr, "Illegal \"classid\"\n");
+ return -1;
+ }
+ addattr_l(n, MAX_MSG, TCA_MATCHALL_CLASSID, &classid, 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];
+ struct tc_matchall_pcnt *pf = NULL;
+
+ if (opt == NULL)
+ return 0;
+
+ parse_rtattr_nested(tb, TCA_MATCHALL_MAX, opt);
+
+ if (handle)
+ print_uint(PRINT_ANY, "handle", "handle 0x%x ", handle);
+
+ if (tb[TCA_MATCHALL_CLASSID]) {
+ SPRINT_BUF(b1);
+ print_string(PRINT_ANY, "flowid", "flowid %s ",
+ sprint_tc_classid(rta_getattr_u32(tb[TCA_MATCHALL_CLASSID]), b1));
+ }
+
+ if (tb[TCA_MATCHALL_FLAGS]) {
+ __u32 flags = rta_getattr_u32(tb[TCA_MATCHALL_FLAGS]);
+
+ if (flags & TCA_CLS_FLAGS_SKIP_HW)
+ print_bool(PRINT_ANY, "skip_hw", "\n skip_hw", true);
+ if (flags & TCA_CLS_FLAGS_SKIP_SW)
+ print_bool(PRINT_ANY, "skip_sw", "\n skip_sw", true);
+
+ if (flags & TCA_CLS_FLAGS_IN_HW)
+ print_bool(PRINT_ANY, "in_hw", "\n in_hw", true);
+ else if (flags & TCA_CLS_FLAGS_NOT_IN_HW)
+ print_bool(PRINT_ANY, "not_in_hw", "\n not_in_hw", true);
+ }
+
+ if (tb[TCA_MATCHALL_PCNT]) {
+ if (RTA_PAYLOAD(tb[TCA_MATCHALL_PCNT]) < sizeof(*pf)) {
+ print_string(PRINT_FP, NULL, "Broken perf counters\n", NULL);
+ return -1;
+ }
+ pf = RTA_DATA(tb[TCA_MATCHALL_PCNT]);
+ }
+
+ if (show_stats && NULL != pf)
+ print_u64(PRINT_ANY, "rule_hit", " (rule hit %llu)",
+ (unsigned long long) pf->rhit);
+
+
+ if (tb[TCA_MATCHALL_ACT])
+ tc_print_action(f, tb[TCA_MATCHALL_ACT], 0);
+
+ return 0;
+}
+
+struct filter_util matchall_filter_util = {
+ .id = "matchall",
+ .parse_fopt = matchall_parse_opt,
+ .print_fopt = matchall_print_opt,
+};