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authorLennart Poettering <lennart@poettering.net>2014-02-13 18:46:48 +0100
committerLennart Poettering <lennart@poettering.net>2014-02-13 18:47:53 +0100
commit31a4e15384b3819621dd5648e18148c2edea72d3 (patch)
tree95292aebaa4415d52fbcf54a16b0b418222f00d2 /src
parent5a1aece58142023d407afae797bb0ffb05b34732 (diff)
rtnl: support adding VETH_INFO_PEER containers into rtnl messages
Diffstat (limited to 'src')
-rw-r--r--src/libsystemd/sd-rtnl/rtnl-message.c19
-rw-r--r--src/libsystemd/sd-rtnl/test-rtnl.c8
-rw-r--r--src/network/networkd-netdev.c4
-rw-r--r--src/systemd/sd-rtnl.h2
4 files changed, 16 insertions, 17 deletions
diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c
index bcfffeff04..c780f71881 100644
--- a/src/libsystemd/sd-rtnl/rtnl-message.c
+++ b/src/libsystemd/sd-rtnl/rtnl-message.c
@@ -24,6 +24,7 @@
#include <netinet/ether.h>
#include <stdbool.h>
#include <unistd.h>
+#include <linux/veth.h>
#include "util.h"
#include "refcnt.h"
@@ -32,7 +33,7 @@
#include "rtnl-util.h"
#include "rtnl-internal.h"
-#define GET_CONTAINER(m, i) (i < (m)->n_containers ? (struct rtattr*)((uint8_t*)(m)->hdr + (m)->container_offsets[i]) : NULL)
+#define GET_CONTAINER(m, i) ((i) < (m)->n_containers ? (struct rtattr*)((uint8_t*)(m)->hdr + (m)->container_offsets[i]) : NULL)
#define NEXT_RTA(m) ((struct rtattr*)((uint8_t*)(m)->hdr + (m)->next_rta_offset))
#define UPDATE_RTA(m, new) (m)->next_rta_offset = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
#define PUSH_CONTAINER(m, new) (m)->container_offsets[(m)->n_containers ++] = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
@@ -700,7 +701,7 @@ int sd_rtnl_message_append_ether_addr(sd_rtnl_message *m, unsigned short type, c
return 0;
}
-int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type) {
+int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type, size_t extra) {
uint16_t rtm_type;
assert_return(m, -EINVAL);
@@ -709,16 +710,14 @@ int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type) {
sd_rtnl_message_get_type(m, &rtm_type);
if (rtnl_message_type_is_link(rtm_type)) {
+
if ((type == IFLA_LINKINFO && m->n_containers == 0) ||
- (type == IFLA_INFO_DATA && m->n_containers == 1 &&
- GET_CONTAINER(m, 0)->rta_type == IFLA_LINKINFO))
- return add_rtattr(m, type, NULL, 0);
- else
- return -ENOTSUP;
- } else
- return -ENOTSUP;
+ (type == IFLA_INFO_DATA && m->n_containers == 1 && GET_CONTAINER(m, 0)->rta_type == IFLA_LINKINFO) ||
+ (type == VETH_INFO_PEER && m->n_containers == 2 && GET_CONTAINER(m, 1)->rta_type == IFLA_INFO_DATA))
+ return add_rtattr(m, type, NULL, extra);
+ }
- return 0;
+ return -ENOTSUP;
}
int sd_rtnl_message_close_container(sd_rtnl_message *m) {
diff --git a/src/libsystemd/sd-rtnl/test-rtnl.c b/src/libsystemd/sd-rtnl/test-rtnl.c
index 53efed561a..9de3806251 100644
--- a/src/libsystemd/sd-rtnl/test-rtnl.c
+++ b/src/libsystemd/sd-rtnl/test-rtnl.c
@@ -287,11 +287,11 @@ static void test_container(void) {
assert(sd_rtnl_message_new_link(RTM_NEWLINK, 0, &m) >= 0);
- assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0);
- assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO) == -ENOTSUP);
+ assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO, 0) >= 0);
+ assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO, 0) == -ENOTSUP);
assert(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "kind") >= 0);
- assert(sd_rtnl_message_open_container(m, IFLA_INFO_DATA) >= 0);
- assert(sd_rtnl_message_open_container(m, IFLA_INFO_DATA) == -ENOTSUP);
+ assert(sd_rtnl_message_open_container(m, IFLA_INFO_DATA, 0) >= 0);
+ assert(sd_rtnl_message_open_container(m, IFLA_INFO_DATA, 0) == -ENOTSUP);
assert(sd_rtnl_message_append_u16(m, IFLA_VLAN_ID, 100) >= 0);
assert(sd_rtnl_message_close_container(m) >= 0);
assert(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "kind") >= 0);
diff --git a/src/network/networkd-netdev.c b/src/network/networkd-netdev.c
index 30eb77d4bc..a452e0d6d6 100644
--- a/src/network/networkd-netdev.c
+++ b/src/network/networkd-netdev.c
@@ -194,7 +194,7 @@ static int netdev_create(NetDev *netdev, Link *link, sd_rtnl_message_handler_t c
return r;
}
- r = sd_rtnl_message_open_container(req, IFLA_LINKINFO);
+ r = sd_rtnl_message_open_container(req, IFLA_LINKINFO, 0);
if (r < 0) {
log_error_netdev(netdev,
"Could not open IFLA_LINKINFO container: %s",
@@ -217,7 +217,7 @@ static int netdev_create(NetDev *netdev, Link *link, sd_rtnl_message_handler_t c
}
if (netdev->vlanid <= VLANID_MAX) {
- r = sd_rtnl_message_open_container(req, IFLA_INFO_DATA);
+ r = sd_rtnl_message_open_container(req, IFLA_INFO_DATA, 0);
if (r < 0) {
log_error_netdev(netdev,
"Could not open IFLA_INFO_DATA container: %s",
diff --git a/src/systemd/sd-rtnl.h b/src/systemd/sd-rtnl.h
index 5506bfa4fa..93edbcbbc0 100644
--- a/src/systemd/sd-rtnl.h
+++ b/src/systemd/sd-rtnl.h
@@ -102,7 +102,7 @@ int sd_rtnl_message_append_in_addr(sd_rtnl_message *m, unsigned short type, cons
int sd_rtnl_message_append_in6_addr(sd_rtnl_message *m, unsigned short type, const struct in6_addr *data);
int sd_rtnl_message_append_ether_addr(sd_rtnl_message *m, unsigned short type, const struct ether_addr *data);
-int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type);
+int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type, size_t extra);
int sd_rtnl_message_close_container(sd_rtnl_message *m);
int sd_rtnl_message_read(sd_rtnl_message *m, unsigned short *type, void **data);