gazelle/0308-kernerl-bind-add-ipv6-add-check.patch
yinbin c2057605b8 sync Connect: execute lwip connect if dst_ip and host_ip are in the same network.
(cherry picked from commit 674a95ff9395859b5b14ede0ed1be07a0fa13ea4)
2024-12-18 19:05:13 +08:00

49 lines
1.9 KiB
Diff

From bf5bf036eed0f7c15e7441c0c4ddbd5d7e48b3dd Mon Sep 17 00:00:00 2001
From: hankangkang <hankangkang5@huawei.com>
Date: Thu, 12 Dec 2024 11:40:09 +0800
Subject: [PATCH] kernerl bind: add ipv6 add check
---
src/lstack/api/lstack_wrap.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/src/lstack/api/lstack_wrap.c b/src/lstack/api/lstack_wrap.c
index 4b57e60..05fa6ef 100644
--- a/src/lstack/api/lstack_wrap.c
+++ b/src/lstack/api/lstack_wrap.c
@@ -174,14 +174,25 @@ static int kernel_bind_process(int32_t s, const struct sockaddr *name, socklen_t
struct lwip_sock *sock = lwip_get_socket(s);
int times = 10;
int ret = 0;
+ bool share_ip = true;
+
+ /* lwip and kernel share IP, and exchange mbuf through virtual-NIC.
+ * lstack not sense if ltran enable kni, so only checks use_ltran. */
+
+ if (!get_global_cfg_params()->use_ltran && !get_global_cfg_params()->kni_switch &&
+ !get_global_cfg_params()->flow_bifurcation) {
+ share_ip = false;
+ }
ret = posix_api->bind_fn(s, name, namelen);
- /* maybe kni addr, ipv6 addr maybe is tentative,need to wait a few seconds */
- if (name->sa_family == AF_INET6 && ret < 0 && errno == EADDRNOTAVAIL) {
- LSTACK_LOG(WARNING, LSTACK, "virtio_user addr is tentative, please wait... \n");
- while (ret != 0 && times-- > 0) {
- sleep(1);
- ret = posix_api->bind_fn(s, name, namelen);
+ if (ret < 0 && errno == EADDRNOTAVAIL) {
+ /* ipv6 addr of virtual-NIC maybe is tentative, need to wait a few seconds */
+ if (name->sa_family == AF_INET6 && share_ip) {
+ LSTACK_LOG(WARNING, LSTACK, "virtio_user addr is tentative, please wait... \n");
+ while (ret != 0 && times-- > 0) {
+ sleep(1);
+ ret = posix_api->bind_fn(s, name, namelen);
+ }
}
}
--
2.33.0