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lib: perform a bind inside vrf_socket() call

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This is an extension to previous behavior, where the bind() operation
was performed only when vrf was not a netns backend kind. This was done
like that because usually the bind parameter is the vrf name itself, and
having an interface name with vrf name is an expectation so that the
bind operation works.
the bind() operation can be performed on whatever device provided that
that name is not null and there is an interface in the vrf that has the
same name as the parameter.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
This commit is contained in:
Philippe Guibert 2019-04-23 17:31:42 +02:00 committed by Donatas Abraitis
parent c785c0516e
commit a06437e632
1 changed files with 7 additions and 1 deletions
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8
lib/vrf.c
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@ -904,10 +904,16 @@ vrf_id_t vrf_get_default_id(void)
int vrf_bind(vrf_id_t vrf_id, int fd, const char *name)
{
int ret = 0;
struct interface *ifp;
if (fd < 0 || name == NULL)
return fd;
if (vrf_is_backend_netns())
/* the device should exist
* otherwise we should return
* case ifname = vrf in netns mode => return
*/
ifp = if_lookup_by_name(name, vrf_id);
if (!ifp)
return fd;
#ifdef SO_BINDTODEVICE
ret = setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen(name)+1);