diff options
| author |   Ed Warnicke <hagbard@gmail.com> | 2021-01-18 11:56:22 -0600 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2021-01-20 17:53:01 +0000 |
| commit | a4b0541f64eef02fa0d003d8f831cfdeb45d3668 (patch) | |
| tree | e033d7a94d3135fe7f5f1f84365353b010d84111 /src/vnet/vxlan | |
| parent | 67d7acd059572c1eb08b86f66ec75de3d2bde365 (diff) | |
vxlan: fix SEGV reported in VPP-1962
Type: fix
Replace vnet_register_interface with ethernet_register_interface
Fixes https://jira.fd.io/browse/VPP-1962
Signed-off-by: Ed Warnicke <hagbard@gmail.com>
Change-Id: I5f578fc416605429fe1e2b510ad49eb754451d40
Signed-off-by: Ed Warnicke <hagbard@gmail.com>
Diffstat (limited to 'src/vnet/vxlan')
| -rw-r--r-- | src/vnet/vxlan/vxlan.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/src/vnet/vxlan/vxlan.c b/src/vnet/vxlan/vxlan.c index 71d03f6d03d..300aae4e0ba 100644 --- a/src/vnet/vxlan/vxlan.c +++ b/src/vnet/vxlan/vxlan.c @@ -45,6 +45,13 @@ vxlan_main_t vxlan_main; +static u32 +vxlan_eth_flag_change (vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 flags) +{ + /* nothing for now */ + return 0; +} + static u8 * format_decap_next (u8 * s, va_list * args) { @@ -355,6 +362,8 @@ int vnet_vxlan_add_del_tunnel vxlan4_tunnel_key_t key4; vxlan6_tunnel_key_t key6; u32 is_ip6 = a->is_ip6; + vlib_main_t *vm = vlib_get_main (); + u8 hw_addr[6]; int not_found; if (!is_ip6) @@ -421,15 +430,30 @@ int vnet_vxlan_add_del_tunnel pool_put (vxm->tunnels, t); return VNET_API_ERROR_INSTANCE_IN_USE; } + + f64 now = vlib_time_now (vm); + u32 rnd; + rnd = (u32) (now * 1e6); + rnd = random_u32 (&rnd); + + memcpy (hw_addr + 2, &rnd, sizeof (rnd)); + hw_addr[0] = 2; + hw_addr[1] = 0xfe; + + if (ethernet_register_interface (vnm, vxlan_device_class.index, + dev_instance, hw_addr, &t->hw_if_index, + vxlan_eth_flag_change)) + { + pool_put (vxm->tunnels, t); + return VNET_API_ERROR_SYSCALL_ERROR_2; + } + hash_set (vxm->instance_used, user_instance, 1); t->dev_instance = dev_instance; /* actual */ t->user_instance = user_instance; /* name */ t->flow_index = ~0; - t->hw_if_index = vnet_register_interface - (vnm, vxlan_device_class.index, dev_instance, - vxlan_hw_class.index, dev_instance); vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, t->hw_if_index); /* Set vxlan tunnel output node */ @@ -461,7 +485,7 @@ int vnet_vxlan_add_del_tunnel if (add_failed) { - vnet_delete_hw_interface (vnm, t->hw_if_index); + ethernet_delete_interface (vnm, t->hw_if_index); hash_unset (vxm->instance_used, t->user_instance); pool_put (vxm->tunnels, t); return VNET_API_ERROR_INVALID_REGISTRATION; @@ -610,7 +634,7 @@ int vnet_vxlan_add_del_tunnel mcast_shared_remove (&t->dst); } - vnet_delete_hw_interface (vnm, t->hw_if_index); + ethernet_delete_interface (vnm, t->hw_if_index); hash_unset (vxm->instance_used, t->user_instance); fib_node_deinit (&t->node); |