File bug-1163460-totemip-Add-support-for-sin6_scope_... of Package corosync

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File bug-1163460-totemip-Add-support-for-sin6_scope_id.patch of Package corosync (Revision 5eba1a3fc7afb50a99f34ba8be15904d)

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From 36938e24a8d03f9b8fc97768ed08df36e63f61d0 Mon Sep 17 00:00:00 2001
From: liangxin1300 <XLiang@suse.com>
Date: Mon, 17 Feb 2020 22:24:31 +0800
Subject: [PATCH] totemip: Add support for sin6_scope_id

sin6_scope_id was not present in totemip structure making impossible to
use link-local ipv6 address.

Patch adds sin6_scope_id and changes convert/copy functions to use it
(formally also comparator functions should be changed, but it seems to
cause more harm and it is not really needed).

This makes corosync work with link-local addresses fine for both UDPU
and UDP transport as long as interface specification is used (so
fe80::xxxx:xxxx:xxxx:xxxx%eth0).

(backported from master 934c47ed4384daf2819c26306bebba3225807499)

Signed-off-by: liangxin1300 <XLiang@suse.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>
---
 exec/totemip.c                   | 15 +++++++++++----
 include/corosync/coroapi.h       |  1 +
 include/corosync/totem/totemip.h |  1 +
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/exec/totemip.c b/exec/totemip.c
index 28a88365..d8130831 100644
--- a/exec/totemip.c
+++ b/exec/totemip.c
@@ -247,7 +247,7 @@ int totemip_totemip_to_sockaddr_convert(struct totem_ip_address *ip_addr,
 #endif
 		sin->sin6_family = ip_addr->family;
 		sin->sin6_port = ntohs(port);
-		sin->sin6_scope_id = 2;
+		sin->sin6_scope_id = ip_addr->sin6_scope_id;
 		memcpy(&sin->sin6_addr, ip_addr->addr, sizeof(struct in6_addr));
 
 		*addrlen = sizeof(struct sockaddr_in6);
@@ -282,10 +282,13 @@ int totemip_parse(struct totem_ip_address *totemip, const char *addr, int family
 	sa6 = (struct sockaddr_in6 *)ainfo->ai_addr;
 	totemip->family = ainfo->ai_family;
 
-	if (ainfo->ai_family == AF_INET)
+	if (ainfo->ai_family == AF_INET) {
 		memcpy(totemip->addr, &sa->sin_addr, sizeof(struct in_addr));
-	else
+	        totemip->sin6_scope_id = 0;
+	} else {
 		memcpy(totemip->addr, &sa6->sin6_addr, sizeof(struct in6_addr));
+	        totemip->sin6_scope_id = sa6->sin6_scope_id;
+        }
 
 	freeaddrinfo(ainfo);
 	return 0;
@@ -304,6 +307,7 @@ int totemip_sockaddr_to_totemip_convert(const struct sockaddr_storage *saddr,
 		const struct sockaddr_in *sin = (const struct sockaddr_in *)saddr;
 
 		memcpy(ip_addr->addr, &sin->sin_addr, sizeof(struct in_addr));
+		ip_addr->sin6_scope_id = 0;
 		ret = 0;
 	}
 
@@ -312,7 +316,7 @@ int totemip_sockaddr_to_totemip_convert(const struct sockaddr_storage *saddr,
 		  = (const struct sockaddr_in6 *)saddr;
 
 		memcpy(ip_addr->addr, &sin->sin6_addr, sizeof(struct in6_addr));
-
+		ip_addr->sin6_scope_id = sin->sin6_scope_id;
 		ret = 0;
 	}
 	return ret;
@@ -445,6 +449,9 @@ int totemip_iface_check(struct totem_ip_address *bindnet,
 		if (addr_len == 0)
 			continue ;
 
+		if (bindnet->sin6_scope_id != 0 && bindnet->sin6_scope_id != if_addr->interface_num)
+			continue;
+
 		totemip_copy(&bn_netaddr, bindnet);
 		totemip_copy(&if_netaddr, &if_addr->ip_addr);
 
diff --git a/include/corosync/coroapi.h b/include/corosync/coroapi.h
index 7e1f27cb..00173001 100644
--- a/include/corosync/coroapi.h
+++ b/include/corosync/coroapi.h
@@ -112,6 +112,7 @@ struct totem_ip_address {
 	unsigned int   nodeid;
 	unsigned short family;
 	unsigned char  addr[TOTEMIP_ADDRLEN];
+	unsigned int   sin6_scope_id;
 } __attribute__((packed));
 #endif
 
diff --git a/include/corosync/totem/totemip.h b/include/corosync/totem/totemip.h
index 0168e66c..2ae0e03e 100644
--- a/include/corosync/totem/totemip.h
+++ b/include/corosync/totem/totemip.h
@@ -65,6 +65,7 @@ struct totem_ip_address
 	unsigned int   nodeid;
 	unsigned short family;
 	unsigned char  addr[TOTEMIP_ADDRLEN];
+	unsigned int   sin6_scope_id;
 } __attribute__((packed));
 
 struct totem_ip_if_address
-- 
2.21.1

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File bug-1163460-totemip-Add-support-for-sin6_scope_id.patch of Package corosync (Revision 5eba1a3fc7afb50a99f34ba8be15904d)

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