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libnetlink: Introduce rta_getattr_be*()

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Add the utility functions rta_getattr_be16() and rta_getattr_be32(), and
change existing code to use it.

Signed-off-by: Amir Vadai <amir@vadai.me>
This commit is contained in:
Amir Vadai 2016-12-02 13:25:13 +02:00 committed by Stephen Hemminger
parent 039b3620cf
commit aab0f61043
5 changed files with 14 additions and 5 deletions
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4
bridge/fdb.c
View File

@ -168,10 +168,10 @@ int print_fdb(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
if (tb[NDA_PORT]) {
if (jw_global)
jsonw_uint_field(jw_global, "port",
ntohs(rta_getattr_u16(tb[NDA_PORT])));
rta_getattr_be16(tb[NDA_PORT]));
else
fprintf(fp, "port %d ",
ntohs(rta_getattr_u16(tb[NDA_PORT])));
rta_getattr_be16(tb[NDA_PORT]));
}
if (tb[NDA_VNI]) {

9
include/libnetlink.h
View File

@ -10,6 +10,7 @@
#include <linux/if_addr.h>
#include <linux/neighbour.h>
#include <linux/netconf.h>
#include <arpa/inet.h>
struct rtnl_handle {
int fd;
@ -140,10 +141,18 @@ static inline __u16 rta_getattr_u16(const struct rtattr *rta)
{
return *(__u16 *)RTA_DATA(rta);
}
static inline __be16 rta_getattr_be16(const struct rtattr *rta)
{
return ntohs(rta_getattr_u16(rta));
}
static inline __u32 rta_getattr_u32(const struct rtattr *rta)
{
return *(__u32 *)RTA_DATA(rta);
}
static inline __be32 rta_getattr_be32(const struct rtattr *rta)
{
return ntohl(rta_getattr_u32(rta));
}
static inline __u64 rta_getattr_u64(const struct rtattr *rta)
{
__u64 tmp;

2
ip/iplink_geneve.c
View File

@ -234,7 +234,7 @@ static void geneve_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
if (tb[IFLA_GENEVE_PORT])
fprintf(f, "dstport %u ",
ntohs(rta_getattr_u16(tb[IFLA_GENEVE_PORT])));
rta_getattr_be16(tb[IFLA_GENEVE_PORT]));
if (tb[IFLA_GENEVE_COLLECT_METADATA])
fputs("external ", f);

2
ip/iplink_vxlan.c
View File

@ -413,7 +413,7 @@ static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
if (tb[IFLA_VXLAN_PORT])
fprintf(f, "dstport %u ",
ntohs(rta_getattr_u16(tb[IFLA_VXLAN_PORT])));
rta_getattr_be16(tb[IFLA_VXLAN_PORT]));
if (tb[IFLA_VXLAN_LEARNING] &&
!rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]))

2
tc/f_flower.c
View File

@ -511,7 +511,7 @@ static void flower_print_ip_addr(FILE *f, char *name, __be16 eth_type,
static void flower_print_port(FILE *f, char *name, struct rtattr *attr)
{
fprintf(f, "\n %s %d", name, ntohs(rta_getattr_u16(attr)));
fprintf(f, "\n %s %d", name, rta_getattr_be16(attr));
}
static int flower_print_opt(struct filter_util *qu, FILE *f,