This adds support for envhdrlen.
Example:
# ip link set eno1 envhdrlen 8
# ip link show eno1
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 envhdrlen 8 qdisc fq_codel
state UP mode DEFAULT group default qlen 1000
link/ether 44:37:e6:6c:69:a4 brd ff:ff:ff:ff:ff:ff
Note:
As an RFC, this includes update for kernel headers.
Signed-off-by: Toshiaki Makita <[email protected]>
---
include/linux/if_link.h | 1 +
ip/ipaddress.c | 2 ++
ip/iplink.c | 10 ++++++++++
3 files changed, 13 insertions(+)
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index b9299e3..46ef8cc 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -157,6 +157,7 @@ enum {
IFLA_GSO_MAX_SIZE,
IFLA_PAD,
IFLA_XDP,
+ IFLA_ENV_HDR_LEN,
__IFLA_MAX
};
diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index 76bd7b3..92a472d 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -820,6 +820,8 @@ int print_linkinfo(const struct sockaddr_nl *who,
if (tb[IFLA_MTU])
fprintf(fp, "mtu %u ", *(int *)RTA_DATA(tb[IFLA_MTU]));
+ if (tb[IFLA_ENV_HDR_LEN])
+ fprintf(fp, "envhdrlen %u ", *(int
*)RTA_DATA(tb[IFLA_ENV_HDR_LEN]));
if (tb[IFLA_QDISC])
fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
if (tb[IFLA_MASTER]) {
diff --git a/ip/iplink.c b/ip/iplink.c
index 6b1db18..4dcb9ac 100644
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -50,6 +50,7 @@ void iplink_usage(void)
fprintf(stderr, " [ address LLADDR ]\n");
fprintf(stderr, " [ broadcast LLADDR ]\n");
fprintf(stderr, " [ mtu MTU ] [index IDX
]\n");
+ fprintf(stderr, " [ envhdrlen ENVHDRLEN ]\n");
fprintf(stderr, " [ numtxqueues QUEUE_COUNT
]\n");
fprintf(stderr, " [ numrxqueues QUEUE_COUNT
]\n");
fprintf(stderr, " type TYPE [ ARGS ]\n");
@@ -489,6 +490,7 @@ int iplink_parse(int argc, char **argv, struct iplink_req
*req,
char abuf[32];
int qlen = -1;
int mtu = -1;
+ int envhdrlen = -1;
int netns = -1;
int vf = -1;
int numtxqueues = -1;
@@ -547,6 +549,14 @@ int iplink_parse(int argc, char **argv, struct iplink_req
*req,
if (get_integer(&mtu, *argv, 0))
invarg("Invalid \"mtu\" value\n", *argv);
addattr_l(&req->n, sizeof(*req), IFLA_MTU, &mtu, 4);
+ } else if (strcmp(*argv, "envhdrlen") == 0) {
+ NEXT_ARG();
+ if (envhdrlen != -1)
+ duparg("envhdrlen", *argv);
+ if (get_integer(&envhdrlen, *argv, 0))
+ invarg("Invalid \"envhdrlen\" value\n", *argv);
+ addattr_l(&req->n, sizeof(*req), IFLA_ENV_HDR_LEN,
+ &envhdrlen, 4);
} else if (strcmp(*argv, "netns") == 0) {
NEXT_ARG();
if (netns != -1)
--
2.5.5
