!905 [sync] PR-881: add udp muticast loop

From: @openeuler-sync-bot 
Reviewed-by: @jiangheng12 
Signed-off-by: @jiangheng12

0117-udp-muticast-loop.patch

@@ -0,0 +1,70 @@
+From 74d87ad663f013e792a9ea5d004eae139cd2e0a0 Mon Sep 17 00:00:00 2001
+From: compile_success <980965867@qq.com>
+Date: Sat, 9 Mar 2024 06:45:25 +0000
+Subject: [PATCH] support loop mode
+
+---
+ src/core/netif.c         |  8 ++++++++--
+ src/include/lwip/netif.h |  4 ++++
+ 2 files changed, 12 insertions(+), 2 deletions(-)
+
+diff --git a/src/core/netif.c b/src/core/netif.c
+index 8302bd5..79f2317 100644
+--- a/src/core/netif.c
++++ b/src/core/netif.c
+@@ -1117,6 +1117,10 @@ netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callb
+  */
+ err_t
+ netif_loop_output(struct netif *netif, struct pbuf *p)
++#else
++err_t
++udp_netif_loop_output(struct netif *netif, struct pbuf *p)
++#endif
+ {
+   struct pbuf *r;
+   err_t err;
+@@ -1218,7 +1224,6 @@ netif_loop_output(struct netif *netif, struct pbuf *p)
+ 
+   return ERR_OK;
+ }
+-#endif
+ 
+ #if LWIP_HAVE_LOOPIF
+ #if LWIP_IPV4
+@@ -1249,6 +1254,10 @@ netif_loop_output_ipv6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ad
+  */
+ void
+ netif_poll(struct netif *netif)
++#else
++void
++udp_netif_poll(struct netif *netif)
++#endif
+ {
+   /* If we have a loopif, SNMP counters are adjusted for it,
+    * if not they are adjusted for 'netif'. */
+@@ -1312,7 +1321,6 @@ netif_poll(struct netif *netif)
+   }
+   SYS_ARCH_UNPROTECT(lev);
+ }
+-#endif
+ 
+ #if !LWIP_NETIF_LOOPBACK_MULTITHREADING
+ /**
+diff --git a/src/include/lwip/netif.h b/src/include/lwip/netif.h
+index d10d4e8..d8f1f45 100644
+--- a/src/include/lwip/netif.h
++++ b/src/include/lwip/netif.h
+@@ -538,6 +538,10 @@ void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_
+ #if ENABLE_LOOPBACK
+ err_t netif_loop_output(struct netif *netif, struct pbuf *p);
+ void netif_poll(struct netif *netif);
++#if GAZELLE_ENABLE
++err_t udp_netif_loop_output(struct netif *netif, struct pbuf *p);
++void udp_netif_poll(struct netif *netif);
++#endif
+ #if !LWIP_NETIF_LOOPBACK_MULTITHREADING
+ void netif_poll_all(void);
+ #endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
+-- 
+2.33.0
+

lwip.spec

@@ -4,7 +4,7 @@
 Summary: lwip is a small independent implementation of the TCP/IP protocol suite
 Name:    lwip
 Version: 2.2.0
-Release: 9
+Release: 10
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@@ -128,6 +128,7 @@ Patch9112:  0113-fix-duplicate-pbuf_free-in-udp_sendto.patch
 Patch9113:  0114-sync-recv-flags-with-linux-kernel.patch
 Patch9114:  0115-enable-LWIP_SO_RCVTIMEO-to-support-recv-accept-timeo.patch
 Patch9115:  0116-transfer-pbuf-timestamp-in-ip-frag.patch
+Patch9116:  0117-udp-muticast-loop.patch
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -157,6 +158,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Fri Mar 22 2024 zhujunhao <zhujunhao11@huawei.com> - 2.2.0-10
+- add udp muticast loop
+
 * Mon Mar 18 2024 yangchen <yangchen145@huawei.com> - 2.2.0-9
 - tansfer pbuf timestamp in ip frag