fix ip netns attach

(cherry picked from commit 7482f7db673f4fb2c1ce385ea0aa76992ff79252)

bugfix-iproute2-change-proc-to-ipnetnsproc-which-is-private.patch

@@ -116,20 +116,18 @@ index fc58a04..fedc3db 100644
  	netns = open(net_path, O_RDONLY);
  	if (netns < 0) {
  		fprintf(stderr, "Cannot open network namespace: %s\n",
-@@ -917,9 +972,11 @@ static int netns_add(int argc, char **argv, bool create)
+@@ -911,9 +965,9 @@ static int netns_add(int argc, char **argv, bool create)
+ 			goto out_delete;
+ 		}
+ 
+-		strcpy(proc_path, "/proc/self/ns/net");
++		snprintf(proc_path, sizeof(proc_path), "/%s/self/ns/net", get_proc_string());
+ 	} else {
+-		snprintf(proc_path, sizeof(proc_path), "/proc/%d/ns/net", pid);
++		snprintf(proc_path, sizeof(proc_path), "/%s/%d/ns/net", get_proc_string(), pid);
  	}
  
  	/* Bind the netns last so I can watch for it */
--	if (mount(proc_path, netns_path, "none", MS_BIND, NULL) < 0) {
-+	char pid_net_path[MAXPATHLEN];
-+	snprintf(pid_net_path, sizeof(pid_net_path), "%s/self/ns/net", get_proc_string());
-+	if (mount(pid_net_path, netns_path, "none", MS_BIND, NULL) < 0) {
- 		fprintf(stderr, "Bind %s -> %s failed: %s\n",
--			proc_path, netns_path, strerror(errno));
-+			pid_net_path, netns_path, strerror(errno));
- 		goto out_delete;
- 	}
- 	netns_restore();
 -- 
 1.8.3.1
 

iproute.spec

@@ -2,7 +2,7 @@
 Name:		iproute
 Version:	5.15.0
 Epoch:      1
-Release:	12
+Release:	13
 Summary:	Linux network configuration utilities
 License:	GPLv2+ and Public Domain
 URL:		https://kernel.org/pub/linux/utils/net/iproute2/
@@ -107,6 +107,12 @@ install -m 0644 lib/libnetlink.a %{buildroot}%{_libdir}/libnetlink.a
 %{_mandir}/*
 
 %changelog
+* Thu Mar 02 2023 jiangheng <jiangheng14@huawei.com> - 1:5.15.0-13
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix ip netns attach failed
+
 * Fri Feb 17 2023 gaoxingwang <gaoxingwang1@huawei.com> - 1:5.15.0-12
 - Type:bugfix
 - ID:NA