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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 v5 13/15] util: Rename sock_l4_dualstack() to sock_l4_dualstack_any()
Date: Tue,  2 Dec 2025 15:02:13 +1100	[thread overview]
Message-ID: <20251202040215.2351792-14-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20251202040215.2351792-1-david@gibson.dropbear.id.au>

Stefano correctly noted that the fact a socket is dual-stack doesn't
necessarily imply that it is bound to a wildcard address.  While that's the
only case we use for dual-stack sockets, there may be others.  Therefore
rename this function to make it clearer that it always uses a wildcard
bind.

Suggested-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 pif.c  | 2 +-
 util.c | 6 +++---
 util.h | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/pif.c b/pif.c
index db447b4f..3d7a90e5 100644
--- a/pif.c
+++ b/pif.c
@@ -82,7 +82,7 @@ int pif_sock_l4(const struct ctx *c, enum epoll_type type, uint8_t pif,
 	ASSERT(pif_is_socket(pif));
 
 	if (!addr) {
-		ref.fd = sock_l4_dualstack(c, type, port, ifname);
+		ref.fd = sock_l4_dualstack_any(c, type, port, ifname);
 	} else {
 		union sockaddr_inany sa;
 
diff --git a/util.c b/util.c
index 853c35a3..fb1945c1 100644
--- a/util.c
+++ b/util.c
@@ -198,7 +198,7 @@ int sock_l4(const struct ctx *c, enum epoll_type type,
 }
 
 /**
- * sock_l4_dualstack() - Create a dual stack socket bound with wildcard address
+ * sock_l4_dualstack_any() - Create dualstack socket bound to :: and 0.0.0.0
  * @c:		Execution context
  * @type:	epoll type
  * @port	Port to bind to (:: and 0.0.0.0)
@@ -208,8 +208,8 @@ int sock_l4(const struct ctx *c, enum epoll_type type,
  *
  * A dual stack socket is effectively bound to both :: and 0.0.0.0.
  */
-int sock_l4_dualstack(const struct ctx *c, enum epoll_type type,
-		      in_port_t port, const char *ifname)
+int sock_l4_dualstack_any(const struct ctx *c, enum epoll_type type,
+			  in_port_t port, const char *ifname)
 {
 	union sockaddr_inany sa = {
 		.sa6.sin6_family = AF_INET6,
diff --git a/util.h b/util.h
index ebc14138..21acc05f 100644
--- a/util.h
+++ b/util.h
@@ -210,8 +210,8 @@ union sockaddr_inany;
 
 int sock_l4(const struct ctx *c, enum epoll_type type,
 	    const union sockaddr_inany *sa, const char *ifname);
-int sock_l4_dualstack(const struct ctx *c, enum epoll_type type,
-		      in_port_t port, const char *ifname);
+int sock_l4_dualstack_any(const struct ctx *c, enum epoll_type type,
+			  in_port_t port, const char *ifname);
 int sock_unix(char *sock_path);
 void sock_probe_features(struct ctx *c);
 long timespec_diff_ms(const struct timespec *a, const struct timespec *b);
-- 
2.52.0


  parent reply	other threads:[~2025-12-02  4:02 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-02  4:02 [PATCH v5 00/15] Reduce differences between inbound and outbound socket binding David Gibson
2025-12-02  4:02 ` [PATCH v5 01/15] util: Correct error message on SO_BINDTODEVICE failure David Gibson
2025-12-02  4:02 ` [PATCH v5 02/15] util: Extend sock_probe_mem() to sock_probe_features() David Gibson
2025-12-03  6:34   ` Stefano Brivio
2025-12-02  4:02 ` [PATCH v5 03/15] conf: More useful errors for kernels without SO_BINDTODEVICE David Gibson
2025-12-02  4:02 ` [PATCH v5 04/15] flow: Remove bogus @path field from flowside_sock_args David Gibson
2025-12-02  4:02 ` [PATCH v5 05/15] inany: Let length of sockaddr_inany be implicit from the family David Gibson
2025-12-02  4:02 ` [PATCH v5 06/15] util, flow, pif: Simplify sock_l4_sa() interface David Gibson
2025-12-02  4:02 ` [PATCH v5 07/15] tcp: Merge tcp_ns_sock_init[46]() into tcp_sock_init_one() David Gibson
2025-12-02  4:02 ` [PATCH v5 08/15] udp: Unify some more inbound/outbound parts of udp_sock_init() David Gibson
2025-12-02  4:02 ` [PATCH v5 09/15] udp: Move udp_sock_init() special case to its caller David Gibson
2025-12-02  4:02 ` [PATCH v5 10/15] util: Fix setting of IPV6_V6ONLY socket option David Gibson
2025-12-02  4:02 ` [PATCH v5 11/15] tcp, udp: Remove fallback if creating dual stack socket fails David Gibson
2025-12-02  4:02 ` [PATCH v5 12/15] tcp, udp: Bind outbound listening sockets by interface instead of address David Gibson
2025-12-03  4:41   ` David Gibson
2025-12-03  6:38     ` Stefano Brivio
2025-12-03 13:13       ` Stefano Brivio
2025-12-02  4:02 ` David Gibson [this message]
2025-12-02  4:02 ` [PATCH v5 14/15] tcp: Always populate oaddr field for socket initiated flows David Gibson
2025-12-02  4:02 ` [PATCH v5 15/15] fwd: Preserve non-standard loopback address when splice forwarding David Gibson
2025-12-03  6:34 ` [PATCH v5 00/15] Reduce differences between inbound and outbound socket binding Stefano Brivio

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