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authorPrasanna Kumar Kalever <prasanna.kalever@redhat.com>2015-06-24 12:21:02 +0530
committerRaghavendra G <rgowdapp@redhat.com>2015-07-26 21:31:39 -0700
commit9442e7bf80f5c2189140918bb5588868204521ed (patch)
tree8a480391111ac4c86b0ba7da96146befa3ac1bd6 /rpc/rpc-transport/rdma/src/name.c
parente9b86d0b575e8e59f0910874341a4a05574124cf (diff)
rpc: fix binding brick issue while bind-insecure is enabled
problem: When bind-insecure is turned on (which is the default now), it may happen that brick is not able to bind to port assigned by Glusterd for example 49192-49195... It seems to occur because the rpc_clnt connections are binding to ports in the same range. so brick fails to bind to a port which is already used by someone else solution: fix for now is to make rpc_clnt to get port numbers from 65535 in a descending order, as a result port clash is minimized other fixes: previously rdma binds to port >= 1024 if it cannot find a free port < 1024, even when bind insecure was turned off(ref to commit '0e3fd04e'), this patch add's a check for bind-insecure in gf_rdma_client_bind function This patch also re-enable bind-insecure and allow insecure by default which was reverted (ref: commit cef1720) previously Change-Id: Ia1cfa93c5454e2ae0ff57813689b75de282ebd07 BUG: 1238661 Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Reviewed-on: http://review.gluster.org/11512 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Diffstat (limited to 'rpc/rpc-transport/rdma/src/name.c')
-rw-r--r--rpc/rpc-transport/rdma/src/name.c67
1 files changed, 38 insertions, 29 deletions
diff --git a/rpc/rpc-transport/rdma/src/name.c b/rpc/rpc-transport/rdma/src/name.c
index 88e3925dc82..0bbbbc0bede 100644
--- a/rpc/rpc-transport/rdma/src/name.c
+++ b/rpc/rpc-transport/rdma/src/name.c
@@ -33,36 +33,41 @@ gf_resolve_ip6 (const char *hostname,
void **dnscache,
struct addrinfo **addr_info);
+
+static void
+_assign_port (struct sockaddr *sockaddr, uint16_t port)
+{
+ switch (sockaddr->sa_family) {
+ case AF_INET6:
+ ((struct sockaddr_in6 *)sockaddr)->sin6_port = htons (port);
+ break;
+
+ case AF_INET_SDP:
+ case AF_INET:
+ ((struct sockaddr_in *)sockaddr)->sin_port = htons (port);
+ break;
+ }
+}
+
static int32_t
af_inet_bind_to_port_lt_ceiling (struct rdma_cm_id *cm_id,
struct sockaddr *sockaddr,
- socklen_t sockaddr_len, int ceiling)
+ socklen_t sockaddr_len, uint32_t ceiling)
{
int32_t ret = -1;
uint16_t port = ceiling - 1;
/* by default assume none of the ports are blocked and all are available */
- gf_boolean_t ports[1024] = {_gf_false,};
+ gf_boolean_t ports[GF_PORT_MAX] = {_gf_false,};
int i = 0;
- ret = gf_process_reserved_ports (ports);
+ ret = gf_process_reserved_ports (ports, ceiling);
if (ret != 0) {
- for (i = 0; i < 1024; i++)
+ for (i = 0; i < GF_PORT_MAX; i++)
ports[i] = _gf_false;
}
while (port) {
- switch (sockaddr->sa_family) {
- case AF_INET6:
- ((struct sockaddr_in6 *)sockaddr)->sin6_port
- = htons (port);
- break;
-
- case AF_INET_SDP:
- case AF_INET:
- ((struct sockaddr_in *)sockaddr)->sin_port
- = htons (port);
- break;
- }
+ _assign_port (sockaddr, port);
/* ignore the reserved ports */
if (ports[port] == _gf_true) {
port--;
@@ -426,22 +431,26 @@ gf_rdma_client_bind (rpc_transport_t *this, struct sockaddr *sockaddr,
*sockaddr_len = sizeof (struct sockaddr_in);
case AF_INET6:
- ret = af_inet_bind_to_port_lt_ceiling (cm_id, sockaddr,
+ if (!this->bind_insecure) {
+ ret = af_inet_bind_to_port_lt_ceiling (cm_id, sockaddr,
*sockaddr_len,
GF_CLIENT_PORT_CEILING);
- if (ret == -1) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- RDMA_MSG_PORT_BIND_FAILED,
- "cannot bind rdma_cm_id to port "
- "less than %d", GF_CLIENT_PORT_CEILING);
- if (sockaddr->sa_family == AF_INET6) {
- ((struct sockaddr_in6 *)sockaddr)->sin6_port
- = htons (0);
- } else {
- ((struct sockaddr_in *)sockaddr)->sin_port
- = htons (0);
+ if (ret == -1) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ RDMA_MSG_PORT_BIND_FAILED,
+ "cannot bind rdma_cm_id to port "
+ "less than %d", GF_CLIENT_PORT_CEILING);
+ }
+ } else {
+ ret = af_inet_bind_to_port_lt_ceiling (cm_id, sockaddr,
+ *sockaddr_len,
+ GF_PORT_MAX);
+ if (ret == -1) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ RDMA_MSG_PORT_BIND_FAILED,
+ "cannot bind rdma_cm_id to port "
+ "less than %d", GF_PORT_MAX);
}
- ret = rdma_bind_addr (cm_id, sockaddr);
}
break;