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lwtunnel: Pass encap and encap_type attributes to lwt_parse_encap 

lwt_parse_encap currently assumes the encap attribute is RTA_ENCAP
and the type is RTA_ENCAP_TYPE. Change lwt_parse_encap to take these
as input arguments for reuse by nexthop code which has the attributes
as NHA_ENCAP and NHA_ENCAP_TYPE.

Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
David Ahern 2019-06-07 15:38:08 -07:00
parent 2360b8cb21
commit 7392401027
3 changed files with 10 additions and 6 deletions
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3
ip/ip_common.h
View File

@ -134,7 +134,8 @@ int bond_parse_xstats(struct link_util *lu, int argc, char **argv);
int bond_print_xstats(struct nlmsghdr *n, void *arg);
/* iproute_lwtunnel.c */
int lwt_parse_encap(struct rtattr *rta, size_t len, int *argcp, char ***argvp);
int lwt_parse_encap(struct rtattr *rta, size_t len, int *argcp, char ***argvp,
int encap_attr, int encap_type_attr);
void lwt_print_encap(FILE *fp, struct rtattr *encap_type, struct rtattr *encap);
/* iplink_xdp.c */

6
ip/iproute.c
View File

@ -997,7 +997,8 @@ static int parse_one_nh(struct nlmsghdr *n, struct rtmsg *r,
} else if (strcmp(*argv, "encap") == 0) {
int old_len = rta->rta_len;
if (lwt_parse_encap(rta, len, &argc, &argv))
if (lwt_parse_encap(rta, len, &argc, &argv,
RTA_ENCAP, RTA_ENCAP_TYPE))
return -1;
rtnh->rtnh_len += rta->rta_len - old_len;
} else if (strcmp(*argv, "as") == 0) {
@ -1416,7 +1417,8 @@ static int iproute_modify(int cmd, unsigned int flags, int argc, char **argv)
rta->rta_type = RTA_ENCAP;
rta->rta_len = RTA_LENGTH(0);
lwt_parse_encap(rta, sizeof(buf), &argc, &argv);
lwt_parse_encap(rta, sizeof(buf), &argc, &argv,
RTA_ENCAP, RTA_ENCAP_TYPE);
if (rta->rta_len > RTA_LENGTH(0))
addraw_l(&req.n, 1024

7
ip/iproute_lwtunnel.c
View File

@ -1111,7 +1111,8 @@ static int parse_encap_bpf(struct rtattr *rta, size_t len, int *argcp,
return 0;
}
int lwt_parse_encap(struct rtattr *rta, size_t len, int *argcp, char ***argvp)
int lwt_parse_encap(struct rtattr *rta, size_t len, int *argcp, char ***argvp,
int encap_attr, int encap_type_attr)
{
struct rtattr *nest;
int argc = *argcp;
@ -1131,7 +1132,7 @@ int lwt_parse_encap(struct rtattr *rta, size_t len, int *argcp, char ***argvp)
exit(-1);
}
nest = rta_nest(rta, len, RTA_ENCAP);
nest = rta_nest(rta, len, encap_attr);
switch (type) {
case LWTUNNEL_ENCAP_MPLS:
ret = parse_encap_mpls(rta, len, &argc, &argv);
@ -1164,7 +1165,7 @@ int lwt_parse_encap(struct rtattr *rta, size_t len, int *argcp, char ***argvp)
rta_nest_end(rta, nest);
ret = rta_addattr16(rta, len, RTA_ENCAP_TYPE, type);
ret = rta_addattr16(rta, len, encap_type_attr, type);
*argcp = argc;
*argvp = argv;