From: Jan Vesely <[email protected]>
Without this patch connections to iscsiuio fail, and strace prints:
connect(8, {sa_family=AF_FILE, path=@"ISCSID_UIP_ABSTRACT_NAMESPACE"}, 32) = -1
ECONNREFUSED (Connection refused)
Note that updating mgmt_ipc_listen and ipc_connect to use sizeof(addr) instead
of the precomputed values also fixes the issue.
Looks like "(Null bytes in the name have no special significance.)" [man 7
unix] is the culprit here.
Signed-off-by: Jan Vesely <[email protected]>
---
iscsiuio/src/unix/iscsid_ipc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/iscsiuio/src/unix/iscsid_ipc.c b/iscsiuio/src/unix/iscsid_ipc.c
index 5c097e6..e22de0d 100644
--- a/iscsiuio/src/unix/iscsid_ipc.c
+++ b/iscsiuio/src/unix/iscsid_ipc.c
@@ -958,7 +958,7 @@ static void *iscsid_loop(void *arg)
*/
int iscsid_init()
{
- int rc;
+ int rc, addr_len;
struct sockaddr_un addr;
iscsid_opts.fd = socket(AF_LOCAL, SOCK_STREAM, 0);
@@ -967,12 +967,14 @@ int iscsid_init()
return iscsid_opts.fd;
}
+ addr_len = offsetof(struct sockaddr_un, sun_path) +
strlen(ISCSID_UIP_NAMESPACE) + 1;
+
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_LOCAL;
memcpy((char *)&addr.sun_path + 1, ISCSID_UIP_NAMESPACE,
strlen(ISCSID_UIP_NAMESPACE));
- rc = bind(iscsid_opts.fd, (struct sockaddr *)&addr, sizeof(addr));
+ rc = bind(iscsid_opts.fd, (struct sockaddr *)&addr, addr_len);
if (rc < 0) {
LOG_ERR(PFX "Can not bind IPC socket: %s", strerror(errno));
goto error;
--
1.8.1.4
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