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From 2d086a831dc16d10729d6fce17bed3ade3efd16c Mon Sep 17 00:00:00 2001
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From: Tomasz Torcz <tomek@pipebreaker.pl>
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Date: Wed, 28 Nov 2012 13:37:06 +0100
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Subject: iscsid,iscsiadm: fix abstract socket length in bind() call
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For abstract sockets, the addrlen parameter should be the actual
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length of socket's name. Otherwise socket gets padded with some
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number of NULs.
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---
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usr/iscsid_req.c | 10 ++++++----
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usr/mgmt_ipc.c | 9 +++++----
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2 files changed, 11 insertions(+), 8 deletions(-)
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diff --git a/usr/iscsid_req.c b/usr/iscsid_req.c
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index 0902011..1c4678d 100644
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--- a/usr/iscsid_req.c
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+++ b/usr/iscsid_req.c
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@@ -56,7 +56,7 @@ static void iscsid_startup(void)
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static int iscsid_connect(int *fd, int start_iscsid)
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{
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- int nsec;
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+ int nsec, addr_len;
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struct sockaddr_un addr;
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*fd = socket(AF_LOCAL, SOCK_STREAM, 0);
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@@ -65,15 +65,17 @@ static int iscsid_connect(int *fd, int start_iscsid)
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return ISCSI_ERR_ISCSID_NOTCONN;
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}
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+ addr_len = offsetof(struct sockaddr_un, sun_path) + strlen(ISCSIADM_NAMESPACE) + 1;
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+
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memset(&addr, 0, sizeof(addr));
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addr.sun_family = AF_LOCAL;
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- memcpy((char *) &addr.sun_path + 1, ISCSIADM_NAMESPACE,
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- strlen(ISCSIADM_NAMESPACE));
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+ memcpy((char *) &addr.sun_path + 1, ISCSIADM_NAMESPACE, addr_len);
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+
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/*
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* Trying to connect with exponential backoff
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*/
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for (nsec = 1; nsec <= MAXSLEEP; nsec <<= 1) {
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- if (connect(*fd, (struct sockaddr *) &addr, sizeof(addr)) == 0)
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+ if (connect(*fd, (struct sockaddr *) &addr, addr_len) == 0)
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/* Connection established */
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return ISCSI_SUCCESS;
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diff --git a/usr/mgmt_ipc.c b/usr/mgmt_ipc.c
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index 5c39c2e..a1dafc9 100644
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--- a/usr/mgmt_ipc.c
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+++ b/usr/mgmt_ipc.c
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@@ -43,7 +43,7 @@
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int
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mgmt_ipc_listen(void)
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{
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- int fd, err;
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+ int fd, err, addr_len;
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struct sockaddr_un addr;
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fd = socket(AF_LOCAL, SOCK_STREAM, 0);
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@@ -52,12 +52,13 @@ mgmt_ipc_listen(void)
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return fd;
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}
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+ addr_len = offsetof(struct sockaddr_un, sun_path) + strlen(ISCSIADM_NAMESPACE) + 1;
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+
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memset(&addr, 0, sizeof(addr));
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addr.sun_family = AF_LOCAL;
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- memcpy((char *) &addr.sun_path + 1, ISCSIADM_NAMESPACE,
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- strlen(ISCSIADM_NAMESPACE));
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+ memcpy((char *) &addr.sun_path + 1, ISCSIADM_NAMESPACE, addr_len);
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- if ((err = bind(fd, (struct sockaddr *) &addr, sizeof(addr))) < 0) {
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+ if ((err = bind(fd, (struct sockaddr *) &addr, addr_len)) < 0 ) {
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log_error("Can not bind IPC socket");
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close(fd);
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return err;
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--
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1.7.11.7
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