Add configuration of ila LWT tunnels for checksum mode including
checksum neutral translation.
Signed-off-by: Tom Herbert <t...@herbertland.com>
---
ip/iproute_lwtunnel.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 56 insertions(+), 2 deletions(-)
diff --git a/ip/iproute_lwtunnel.c b/ip/iproute_lwtunnel.c
index bdbb15d..b656143 100644
--- a/ip/iproute_lwtunnel.c
+++ b/ip/iproute_lwtunnel.c
@@ -90,6 +90,32 @@ static void print_encap_ip(FILE *fp, struct rtattr *encap)
fprintf(fp, "tos %d ", rta_getattr_u8(tb[LWTUNNEL_IP_TOS]));
}
+static char *ila_csum_mode2name(__u8 csum_mode)
+{
+ switch (csum_mode) {
+ case ILA_CSUM_ADJUST_TRANSPORT:
+ return "adj-transport";
+ case ILA_CSUM_NEUTRAL_MAP:
+ return "neutral-map";
+ case ILA_CSUM_NO_ACTION:
+ return "no-action";
+ default:
+ return "unknown";
+ }
+}
+
+static __u8 ila_csum_name2mode(char *name)
+{
+ if (strcmp(name, "adj-transport") == 0)
+ return ILA_CSUM_ADJUST_TRANSPORT;
+ else if (strcmp(name, "neutral-map") == 0)
+ return ILA_CSUM_NEUTRAL_MAP;
+ else if (strcmp(name, "no-action") == 0)
+ return ILA_CSUM_NO_ACTION;
+ else
+ return -1;
+}
+
static void print_encap_ila(FILE *fp, struct rtattr *encap)
{
struct rtattr *tb[ILA_ATTR_MAX+1];
@@ -103,6 +129,10 @@ static void print_encap_ila(FILE *fp, struct rtattr *encap)
abuf, sizeof(abuf));
fprintf(fp, " %s ", abuf);
}
+
+ if (tb[ILA_ATTR_CSUM_MODE])
+ fprintf(fp, " csum-mode %s ",
+
ila_csum_mode2name(rta_getattr_u8(tb[ILA_ATTR_CSUM_MODE])));
}
static void print_encap_ip6(FILE *fp, struct rtattr *encap)
@@ -246,10 +276,34 @@ static int parse_encap_ila(struct rtattr *rta, size_t len,
exit(1);
}
+ argc--; argv++;
+
rta_addattr64(rta, 1024, ILA_ATTR_LOCATOR, locator);
- *argcp = argc;
- *argvp = argv;
+ while (argc > 0) {
+ if (strcmp(*argv, "csum-mode") == 0) {
+ __u8 csum_mode;
+
+ NEXT_ARG();
+
+ csum_mode = ila_csum_name2mode(*argv);
+ if (csum_mode < 0)
+ invarg("\"csum-mode\" value is invalid\n",
*argv);
+
+ rta_addattr8(rta, 1024, ILA_ATTR_CSUM_MODE, csum_mode);
+
+ argc--; argv++;
+ } else {
+ break;
+ }
+ }
+
+ /* argv is currently the first unparsed argument,
+ * but the lwt_parse_encap() caller will move to the next,
+ * so step back
+ */
+ *argcp = argc + 1;
+ *argvp = argv - 1;
return 0;
}
--
2.8.0.rc2
