xfrm: Introduce xfrm by mark
This patch carries basic infrastructure.
You need to make sure that the proper include/linux/xfrm.h is included
for it to compile.
Example:
diff --git a/ip/ipxfrm.c b/ip/ipxfrm.c
index 7dc36f3..78e1926 100644
--- a/ip/ipxfrm.c
+++ b/ip/ipxfrm.c
@@ -629,9 +629,48 @@
}
}
+int xfrm_parse_mark(struct xfrm_mark *mark, int *argcp, char ***argvp)
+{
+ int argc = *argcp;
+ char **argv = *argvp;
+
+ NEXT_ARG();
+ if (get_u32(&mark->v, *argv, 0)) {
+ invarg("Illegal \"mark\" value\n", *argv);
+ }
+ if (argc > 1)
+ NEXT_ARG();
+ else { /* last entry on parse line */
+ mark->m = 0xffffffff;
+ goto done;
+ }
+
+ if (strcmp(*argv, "mask") == 0) {
+ NEXT_ARG();
+ if (get_u32(&mark->m, *argv, 0)) {
+ invarg("Illegal \"mark\" mask\n", *argv);
+ }
+ } else {
+ mark->m = 0xffffffff;
+ PREV_ARG();
+ }
+
+done:
+ *argcp = argc;
+ *argvp = argv;
+
+ return 0;
+}
+
void xfrm_xfrma_print(struct rtattr *tb[], __u16 family,
FILE *fp, const char *prefix)
{
+ if (tb[XFRMA_MARK]) {
+ struct rtattr *rta = tb[XFRMA_MARK];
+ struct xfrm_mark *m = (struct xfrm_mark *) RTA_DATA(rta);
+ fprintf(fp, "\tmark %d/0x%x\n", m->v, m->m);
+ }
+
if (tb[XFRMA_ALG_AUTH]) {
struct rtattr *rta = tb[XFRMA_ALG_AUTH];
xfrm_algo_print((struct xfrm_algo *) RTA_DATA(rta),
@@ -740,6 +779,7 @@
fprintf(fp, "%s", strxf_time(lastused));
fprintf(fp, "%s", _SL_);
}
+
}
static int xfrm_selector_iszero(struct xfrm_selector *s)