summaryrefslogtreecommitdiffstats
path: root/tc/q_dsmark.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 14:18:53 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 14:18:53 +0000
commita0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 (patch)
tree8feaf1a1932871b139b3b30be4c09c66489918be /tc/q_dsmark.c
parentInitial commit. (diff)
downloadiproute2-upstream.tar.xz
iproute2-upstream.zip
Adding upstream version 6.1.0.upstream/6.1.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--tc/q_dsmark.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/tc/q_dsmark.c b/tc/q_dsmark.c
new file mode 100644
index 0000000..d3e8292
--- /dev/null
+++ b/tc/q_dsmark.c
@@ -0,0 +1,166 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * q_dsmark.c Differentiated Services field marking.
+ *
+ * Hacked 1998,1999 by Werner Almesberger, EPFL ICA
+ *
+ */
+
+#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 "utils.h"
+#include "tc_util.h"
+
+
+static void explain(void)
+{
+ fprintf(stderr,"Usage: dsmark indices INDICES [ default_index DEFAULT_INDEX ] [ set_tc_index ]\n");
+}
+
+
+static int dsmark_parse_opt(struct qdisc_util *qu, int argc, char **argv,
+ struct nlmsghdr *n, const char *dev)
+{
+ struct rtattr *tail;
+ __u16 ind;
+ char *end;
+ int dflt, set_tc_index;
+
+ ind = set_tc_index = 0;
+ dflt = -1;
+ while (argc > 0) {
+ if (!strcmp(*argv, "indices")) {
+ NEXT_ARG();
+ ind = strtoul(*argv, &end, 0);
+ if (*end) {
+ explain();
+ return -1;
+ }
+ } else if (!strcmp(*argv,"default_index") || !strcmp(*argv,
+ "default")) {
+ NEXT_ARG();
+ dflt = strtoul(*argv, &end, 0);
+ if (*end) {
+ explain();
+ return -1;
+ }
+ } else if (!strcmp(*argv,"set_tc_index")) {
+ set_tc_index = 1;
+ } else {
+ explain();
+ return -1;
+ }
+ argc--;
+ argv++;
+ }
+ if (!ind) {
+ explain();
+ return -1;
+ }
+ tail = addattr_nest(n, 1024, TCA_OPTIONS);
+ addattr_l(n, 1024, TCA_DSMARK_INDICES, &ind, sizeof(ind));
+ if (dflt != -1) {
+ __u16 tmp = dflt;
+
+ addattr_l(n, 1024, TCA_DSMARK_DEFAULT_INDEX, &tmp, sizeof(tmp));
+ }
+ if (set_tc_index)
+ addattr_l(n, 1024, TCA_DSMARK_SET_TC_INDEX, NULL, 0);
+ addattr_nest_end(n, tail);
+ return 0;
+}
+
+
+static void explain_class(void)
+{
+ fprintf(stderr, "Usage: ... dsmark [ mask MASK ] [ value VALUE ]\n");
+}
+
+
+static int dsmark_parse_class_opt(struct qdisc_util *qu, int argc, char **argv,
+ struct nlmsghdr *n, const char *dev)
+{
+ struct rtattr *tail;
+ __u8 tmp;
+ char *end;
+
+ tail = addattr_nest(n, 1024, TCA_OPTIONS);
+ while (argc > 0) {
+ if (!strcmp(*argv, "mask")) {
+ NEXT_ARG();
+ tmp = strtoul(*argv, &end, 0);
+ if (*end) {
+ explain_class();
+ return -1;
+ }
+ addattr_l(n, 1024, TCA_DSMARK_MASK, &tmp, 1);
+ } else if (!strcmp(*argv,"value")) {
+ NEXT_ARG();
+ tmp = strtoul(*argv, &end, 0);
+ if (*end) {
+ explain_class();
+ return -1;
+ }
+ addattr_l(n, 1024, TCA_DSMARK_VALUE, &tmp, 1);
+ } else {
+ explain_class();
+ return -1;
+ }
+ argc--;
+ argv++;
+ }
+ addattr_nest_end(n, tail);
+ return 0;
+}
+
+
+
+static int dsmark_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
+{
+ struct rtattr *tb[TCA_DSMARK_MAX+1];
+
+ if (!opt) return 0;
+ parse_rtattr(tb, TCA_DSMARK_MAX, RTA_DATA(opt), RTA_PAYLOAD(opt));
+ if (tb[TCA_DSMARK_MASK]) {
+ if (!RTA_PAYLOAD(tb[TCA_DSMARK_MASK]))
+ fprintf(stderr, "dsmark: empty mask\n");
+ else fprintf(f, "mask 0x%02x ",
+ rta_getattr_u8(tb[TCA_DSMARK_MASK]));
+ }
+ if (tb[TCA_DSMARK_VALUE]) {
+ if (!RTA_PAYLOAD(tb[TCA_DSMARK_VALUE]))
+ fprintf(stderr, "dsmark: empty value\n");
+ else fprintf(f, "value 0x%02x ",
+ rta_getattr_u8(tb[TCA_DSMARK_VALUE]));
+ }
+ if (tb[TCA_DSMARK_INDICES]) {
+ if (RTA_PAYLOAD(tb[TCA_DSMARK_INDICES]) < sizeof(__u16))
+ fprintf(stderr, "dsmark: indices too short\n");
+ else fprintf(f, "indices 0x%04x ",
+ rta_getattr_u16(tb[TCA_DSMARK_INDICES]));
+ }
+ if (tb[TCA_DSMARK_DEFAULT_INDEX]) {
+ if (RTA_PAYLOAD(tb[TCA_DSMARK_DEFAULT_INDEX]) < sizeof(__u16))
+ fprintf(stderr, "dsmark: default_index too short\n");
+ else fprintf(f, "default_index 0x%04x ",
+ rta_getattr_u16(tb[TCA_DSMARK_DEFAULT_INDEX]));
+ }
+ if (tb[TCA_DSMARK_SET_TC_INDEX]) fprintf(f, "set_tc_index ");
+ return 0;
+}
+
+
+struct qdisc_util dsmark_qdisc_util = {
+ .id = "dsmark",
+ .parse_qopt = dsmark_parse_opt,
+ .print_qopt = dsmark_print_opt,
+ .parse_copt = dsmark_parse_class_opt,
+ .print_copt = dsmark_print_opt,
+};