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From: David Gibson <david@gibson.dropbear.id.au>
To: Stefano Brivio <sbrivio@redhat.com>, passt-dev@passt.top
Cc: David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH 03/11] icmp: Remove redundant initialisation of sendto() address
Date: Mon, 18 Dec 2023 18:40:09 +1100	[thread overview]
Message-ID: <20231218074017.985092-4-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20231218074017.985092-1-david@gibson.dropbear.id.au>

We initialise the address portion of the sockaddr for sendto() to the
unspecified address, but then always overwrite it with the actual
destination address before we call the sendto().

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 icmp.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/icmp.c b/icmp.c
index d3e5bc6..c745b7b 100644
--- a/icmp.c
+++ b/icmp.c
@@ -169,7 +169,6 @@ int icmp_tap_handler(const struct ctx *c, uint8_t pif, int af,
 	if (af == AF_INET) {
 		struct sockaddr_in sa = {
 			.sin_family = AF_INET,
-			.sin_addr = IN4ADDR_ANY_INIT,
 		};
 		union icmp_epoll_ref iref;
 		struct icmphdr *ih;
@@ -213,7 +212,6 @@ int icmp_tap_handler(const struct ctx *c, uint8_t pif, int af,
 	} else if (af == AF_INET6) {
 		struct sockaddr_in6 sa = {
 			.sin6_family = AF_INET6,
-			.sin6_addr = IN6ADDR_ANY_INIT,
 			.sin6_scope_id = c->ifi6,
 		};
 		union icmp_epoll_ref iref;
-- 
@@ -169,7 +169,6 @@ int icmp_tap_handler(const struct ctx *c, uint8_t pif, int af,
 	if (af == AF_INET) {
 		struct sockaddr_in sa = {
 			.sin_family = AF_INET,
-			.sin_addr = IN4ADDR_ANY_INIT,
 		};
 		union icmp_epoll_ref iref;
 		struct icmphdr *ih;
@@ -213,7 +212,6 @@ int icmp_tap_handler(const struct ctx *c, uint8_t pif, int af,
 	} else if (af == AF_INET6) {
 		struct sockaddr_in6 sa = {
 			.sin6_family = AF_INET6,
-			.sin6_addr = IN6ADDR_ANY_INIT,
 			.sin6_scope_id = c->ifi6,
 		};
 		union icmp_epoll_ref iref;
-- 
2.43.0


  parent reply	other threads:[~2023-12-18  7:40 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-18  7:40 [PATCH 00/11] RFC: ICMP reworks preliminary to flow table integration David Gibson
2023-12-18  7:40 ` [PATCH 01/11] checksum: Don't use linux/icmp.h when netinet/ip_icmp.h will do David Gibson
2023-12-18  7:40 ` [PATCH 02/11] icmp: Don't set "port" on destination sockaddr for ping sockets David Gibson
2023-12-18  7:40 ` David Gibson [this message]
2023-12-18  7:40 ` [PATCH 04/11] icmp: Don't attempt to handle "wrong direction" ping socket traffic David Gibson
2023-12-18  7:40 ` [PATCH 05/11] icmp: Don't attempt to match host IDs to guest IDs David Gibson
2023-12-18  7:40 ` [PATCH 06/11] icmp: Use -1 to represent "missing" sockets David Gibson
2023-12-18  7:40 ` [PATCH 07/11] icmp: Simplify socket expiry scanning David Gibson
2023-12-18  7:40 ` [PATCH 08/11] icmp: Share more between IPv4 and IPv6 paths in icmp_tap_handler() David Gibson
2023-12-18  7:40 ` [PATCH 09/11] icmp: Consolidate icmp_sock_handler() with icmpv6_sock_handler() David Gibson
2023-12-18  7:40 ` [PATCH 10/11] icmp: Warn on receive errors from ping sockets David Gibson
2023-12-18  7:40 ` [PATCH 11/11] icmp: Validate packets received on " David Gibson

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