pbuf: fix pbuf->tot_len incorrect after pbuf_split_64k is called

0071-fix-pbuf-tot_len-incorrect-after-pbuf_split_64k-is-c.patch

@@ -0,0 +1,35 @@
+From 339ad47548236f2b11ee6161a419db8aa664138c Mon Sep 17 00:00:00 2001
+From: jiangheng <jiangheng14@huawei.com>
+Date: Fri, 15 Sep 2023 09:33:56 +0800
+Subject: [PATCH] fix pbuf->tot_len incorrect after pbuf_split_64k is called
+
+---
+ src/core/pbuf.c | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+diff --git a/src/core/pbuf.c b/src/core/pbuf.c
+index 2385e57..8a55463 100644
+--- a/src/core/pbuf.c
++++ b/src/core/pbuf.c
+@@ -1194,7 +1194,7 @@ void pbuf_split_64k(struct pbuf *p, struct pbuf **rest)
+     if (r != NULL) {
+       /* Update the tot_len field in the first part */
+       for (i = p; i != NULL; i = i->next) {
+-        i->tot_len = tot_len_front;
++        i->tot_len = (u16_t)(i->tot_len - r->tot_len);
+         LWIP_ASSERT("tot_len/len mismatch in last pbuf",
+                     (i->next != NULL) || (i->tot_len == i->len));
+       }
+@@ -1205,9 +1205,6 @@ void pbuf_split_64k(struct pbuf *p, struct pbuf **rest)
+       /* tot_len field in rest does not need modifications */
+       /* reference counters do not need modifications */
+       *rest = r;
+-      r->tot_len = r->len;
+-    }else{
+-      p->tot_len = tot_len_front;
+     }
+   }
+ }
+-- 
+2.27.0
+

lwip.spec

@@ -4,7 +4,7 @@
 Summary: lwip is a small independent implementation of the TCP/IP protocol suite
 Name:    lwip
 Version: 2.1.3
-Release: 75
+Release: 76
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@@ -82,6 +82,7 @@ Patch9066:  0067-fix-null-pointer-when-all-zero-address-listen.patch
 Patch9067:  0068-enable-UDP-CKSUM-in-lwip.patch
 Patch9068:  0069-add-error-check-in-hugepage_init-and-sys_mbox_free.patch
 Patch9069:  0070-add-CHECKSUM_UDP-when-not-support-OFFLOAD_UDP_CHECKS.patch
+Patch9070:  0071-fix-pbuf-tot_len-incorrect-after-pbuf_split_64k-is-c.patch
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -112,6 +113,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Fri Sep 15 2023 jiangheng <jiangheng14@huawei.com> - 2.1.3-76
+- fix pbuf->tot_len incorrect after pbuf_split_64k is called
+
 * Tue Jun 27 2023 kircher <majun65@huawei.com> - 2.1.3-75
 - add CHECKSUM_UDP when not support OFFLOAD_UDP_CHECKS