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platform: add oif argument to nm_platform_ip_route_get()

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Analog to `ip route get $DST oif $IFACE`.
This commit is contained in:
Thomas Haller 2017-09-07 11:11:32 +02:00
parent cac10198f6
commit 7046ce5332
5 changed files with 20 additions and 2 deletions
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8
src/platform/nm-linux-platform.c
View file

@ -6033,6 +6033,7 @@ static NMPlatformError
ip_route_get (NMPlatform *platform,
int addr_family,
gconstpointer address,
int oif_ifindex,
NMPObject **out_route)
{
const gboolean is_v4 = (addr_family == AF_INET);
@ -6066,6 +6067,13 @@ ip_route_get (NMPlatform *platform,
if (!_nl_addattr_l (&req.n, sizeof (req), RTA_DST, address, addr_len))
nm_assert_not_reached ();
if (oif_ifindex > 0) {
gint32 ii = oif_ifindex;
if (!_nl_addattr_l (&req.n, sizeof (req), RTA_OIF, &ii, sizeof (ii)))
nm_assert_not_reached ();
}
seq_result = WAIT_FOR_NL_RESPONSE_RESULT_UNKNOWN;
nle = _nl_send_nlmsghdr (platform, &req.n, &seq_result, DELAYED_ACTION_RESPONSE_TYPE_ROUTE_GET, &route);
if (nle < 0) {

8
src/platform/nm-platform.c
View file

@ -3888,12 +3888,14 @@ NMPlatformError
nm_platform_ip_route_get (NMPlatform *self,
int addr_family,
gconstpointer address /* in_addr_t or struct in6_addr */,
int oif_ifindex,
NMPObject **out_route)
{
nm_auto_nmpobj NMPObject *route = NULL;
NMPlatformError result;
char buf[NM_UTILS_INET_ADDRSTRLEN];
char buf_err[200];
char buf_oif[64];
_CHECK_SELF (self, klass, FALSE);
@ -3901,9 +3903,10 @@ nm_platform_ip_route_get (NMPlatform *self,
g_return_val_if_fail (NM_IN_SET (addr_family, AF_INET,
AF_INET6), NM_PLATFORM_ERROR_BUG);
_LOGT ("route: get IPv%c route for: %s",
_LOGT ("route: get IPv%c route for: %s%s",
addr_family == AF_INET ? '4' : '6',
inet_ntop (addr_family, address, buf, sizeof (buf)));
inet_ntop (addr_family, address, buf, sizeof (buf)),
oif_ifindex > 0 ? nm_sprintf_buf (buf_oif, " oif %d", oif_ifindex) : "");
if (!klass->ip_route_get)
result = NM_PLATFORM_ERROR_OPNOTSUPP;
@ -3911,6 +3914,7 @@ nm_platform_ip_route_get (NMPlatform *self,
result = klass->ip_route_get (self,
addr_family,
address,
oif_ifindex,
&route);
}

2
src/platform/nm-platform.h
View file

@ -823,6 +823,7 @@ typedef struct {
NMPlatformError (*ip_route_get) (NMPlatform *self,
int addr_family,
gconstpointer address,
int oif_ifindex,
NMPObject **out_route);
gboolean (*check_support_kernel_extended_ifa_flags) (NMPlatform *);
@ -1186,6 +1187,7 @@ gboolean nm_platform_ip_route_flush (NMPlatform *self,
NMPlatformError nm_platform_ip_route_get (NMPlatform *self,
int addr_family,
gconstpointer address,
int oif_ifindex,
NMPObject **out_route);
const char *nm_platform_link_to_string (const NMPlatformLink *link, char *buf, gsize len);

2
src/platform/tests/test-route.c
View file

@ -409,6 +409,7 @@ test_ip_route_get (void)
result = nm_platform_ip_route_get (NM_PLATFORM_GET,
AF_INET,
&a,
nmtst_get_rand_int () % 2 ? 0 : ifindex,
&route);
g_assert (result == NM_PLATFORM_ERROR_SUCCESS);
@ -417,6 +418,7 @@ test_ip_route_get (void)
g_assert (route->parent._ref_count == 1);
r = NMP_OBJECT_CAST_IP4_ROUTE (route);
g_assert (r->rt_cloned);
g_assert (r->ifindex == ifindex);
g_assert (r->network == a);
g_assert (r->plen == 32);

2
src/vpn/nm-vpn-connection.c
View file

@ -741,6 +741,7 @@ add_ip4_vpn_gateway_route (NMIP4Config *config,
if (nm_platform_ip_route_get (platform,
AF_INET,
&vpn_gw,
0,
(NMPObject **) &route_resolved) == NM_PLATFORM_ERROR_SUCCESS) {
const NMPlatformIP4Route *r = NMP_OBJECT_CAST_IP4_ROUTE (route_resolved);
@ -811,6 +812,7 @@ add_ip6_vpn_gateway_route (NMIP6Config *config,
if (nm_platform_ip_route_get (platform,
AF_INET6,
vpn_gw,
0,
(NMPObject **) &route_resolved) == NM_PLATFORM_ERROR_SUCCESS) {
const NMPlatformIP6Route *r = NMP_OBJECT_CAST_IP6_ROUTE (route_resolved);