53 lines
1.5 KiB
Diff
53 lines
1.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Wed, 12 Feb 2025 20:45:11 +0100
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Subject: [PATCH] libmpathcmd: try both abstract and pathname sockets
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When connecting to the multipathd socket, try the pathname socket
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first, then the abstract socket. Fail only if both connection attempts
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fail.
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmpathcmd/mpath_cmd.c | 13 ++++++++++---
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1 file changed, 10 insertions(+), 3 deletions(-)
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diff --git a/libmpathcmd/mpath_cmd.c b/libmpathcmd/mpath_cmd.c
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index 54143fb1..267e3dd7 100644
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--- a/libmpathcmd/mpath_cmd.c
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+++ b/libmpathcmd/mpath_cmd.c
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@@ -102,7 +102,10 @@ int __mpath_connect(int nonblocking)
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size_t len;
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struct sockaddr_un addr;
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int flags = 0;
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+ const char *const names[2] = {PATHNAME_SOCKET, ABSTRACT_SOCKET};
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+ int name_idx = 0;
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+retry:
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fd = socket(AF_LOCAL, SOCK_STREAM, 0);
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if (fd == -1)
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return -1;
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@@ -113,13 +116,17 @@ int __mpath_connect(int nonblocking)
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(void)fcntl(fd, F_SETFL, flags|O_NONBLOCK);
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}
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- len = mpath_fill_sockaddr__(&addr, ABSTRACT_SOCKET);
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+ len = mpath_fill_sockaddr__(&addr, names[name_idx]);
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if (connect(fd, (struct sockaddr *)&addr, len) == -1) {
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int err = errno;
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close(fd);
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- errno = err;
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- return -1;
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+ if (++name_idx == 1)
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+ goto retry;
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+ else {
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+ errno = err;
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+ return -1;
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+ }
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}
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if (nonblocking && flags != -1)
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