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path: root/src/ipcpd/shim-eth-llc/main.c
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Diffstat (limited to 'src/ipcpd/shim-eth-llc/main.c')
-rw-r--r--src/ipcpd/shim-eth-llc/main.c143
1 files changed, 55 insertions, 88 deletions
diff --git a/src/ipcpd/shim-eth-llc/main.c b/src/ipcpd/shim-eth-llc/main.c
index e4d7429a..60b55009 100644
--- a/src/ipcpd/shim-eth-llc/main.c
+++ b/src/ipcpd/shim-eth-llc/main.c
@@ -197,9 +197,9 @@ void eth_llc_ipcp_data_destroy()
if (_ipcp == NULL)
return;
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
- if (_ipcp->state != IPCP_SHUTDOWN)
+ if (ipcp_get_state(_ipcp) != IPCP_SHUTDOWN)
LOG_WARN("Cleaning up while not in shutdown.");
if (shim_data(_ipcp)->dum != NULL)
@@ -218,7 +218,7 @@ void eth_llc_ipcp_data_destroy()
shm_ap_rbuff_close(ipcp_flow(i)->rb);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
ipcp_data_destroy(_ipcp->data);
}
@@ -478,12 +478,12 @@ static int eth_llc_ipcp_port_req(uint8_t r_sap,
ssize_t index = 0;
int i;
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
pthread_rwlock_wrlock(&shim_data(_ipcp)->flows_lock);
index = bmp_allocate(shim_data(_ipcp)->indices);
if (index < 0) {
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
LOG_ERR("Out of free indices.");
return -1;
@@ -496,7 +496,7 @@ static int eth_llc_ipcp_port_req(uint8_t r_sap,
if (port_id < 0) {
bmp_release(shim_data(_ipcp)->indices, index);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
LOG_ERR("Could not get port id from IRMd.");
return -1;
@@ -511,7 +511,7 @@ static int eth_llc_ipcp_port_req(uint8_t r_sap,
}
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_DBG("New flow request, port_id %d, remote SAP %d.", port_id, r_sap);
@@ -528,20 +528,20 @@ static int eth_llc_ipcp_port_alloc_reply(uint8_t ssap,
int port_id = -1;
int i;
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
pthread_rwlock_rdlock(&shim_data(_ipcp)->flows_lock);
index = sap_to_index(ssap);
if (index < 0) {
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_ERR("No flow found with that SAP.");
return -1; /* -EFLOWNOTFOUND */
}
if (ipcp_flow(index)->state != FLOW_PENDING) {
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
return -1; /* -EFLOWNOTPENDING */
}
@@ -558,7 +558,7 @@ static int eth_llc_ipcp_port_alloc_reply(uint8_t ssap,
}
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_DBG("Flow reply, port_id %d, remote SAP %d.", port_id, dsap);
@@ -578,13 +578,13 @@ static int eth_llc_ipcp_flow_dealloc_req(uint8_t ssap,
int port_id = -1;
int i = 0;
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
pthread_rwlock_wrlock(&shim_data(_ipcp)->flows_lock);
i = sap_to_index(ssap);
if (i < 0) {
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_ERR("No flow found for remote deallocation request.");
return 0;
}
@@ -593,7 +593,7 @@ static int eth_llc_ipcp_flow_dealloc_req(uint8_t ssap,
destroy_ipcp_flow(i);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
ipcp_flow_dealloc(0, port_id);
@@ -669,15 +669,6 @@ static void * eth_llc_ipcp_sdu_reader(void * o)
memset(br_addr, 0xff, MAC_SIZE * sizeof(uint8_t));
while (true) {
- pthread_mutex_lock(&_ipcp->state_lock);
-
- if (_ipcp->state != IPCP_ENROLLED) {
- pthread_mutex_unlock(&_ipcp->state_lock);
- return (void *) 1; /* -ENOTENROLLED */
- }
-
- pthread_mutex_unlock(&_ipcp->state_lock);
-
#if defined(PACKET_RX_RING) && defined(PACKET_TX_RING)
header = (void *) shim_data(_ipcp)->rx_ring +
(offset * SHM_DU_BUFF_BLOCK_SIZE);
@@ -789,13 +780,7 @@ static void * eth_llc_ipcp_sdu_writer(void * o)
if (e == NULL)
continue;
- pthread_mutex_lock(&_ipcp->state_lock);
-
- if (_ipcp->state != IPCP_ENROLLED) {
- pthread_mutex_unlock(&_ipcp->state_lock);
- return (void *) 1; /* -ENOTENROLLED */
- }
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
len = shm_du_map_read((uint8_t **) &buf,
shim_data(_ipcp)->dum,
@@ -826,6 +811,8 @@ static void * eth_llc_ipcp_sdu_writer(void * o)
if (shim_data(_ipcp)->dum != NULL)
shm_du_map_remove(shim_data(_ipcp)->dum, e->index);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
+
free(e);
}
@@ -843,30 +830,14 @@ void ipcp_sig_handler(int sig, siginfo_t * info, void * c)
case SIGTERM:
case SIGHUP:
if (info->si_pid == irmd_api) {
- bool clean_threads = false;
LOG_DBG("Terminating by order of %d. Bye.",
info->si_pid);
- pthread_mutex_lock(&_ipcp->state_lock);
-
- if (_ipcp->state == IPCP_ENROLLED)
- clean_threads = true;
+ pthread_rwlock_wrlock(&_ipcp->state_lock);
- _ipcp->state = IPCP_SHUTDOWN;
+ ipcp_set_state(_ipcp, IPCP_SHUTDOWN);
- pthread_mutex_unlock(&_ipcp->state_lock);
-
- if (clean_threads) {
- pthread_cancel(shim_data(_ipcp)->sdu_reader);
- pthread_cancel(shim_data(_ipcp)->sdu_writer);
-
- pthread_join(shim_data(_ipcp)->sdu_writer,
- NULL);
- pthread_join(shim_data(_ipcp)->sdu_reader,
- NULL);
- }
-
- pthread_cancel(shim_data(_ipcp)->mainloop);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
}
default:
@@ -1030,10 +1001,10 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf)
#endif
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_wrlock(&_ipcp->state_lock);
- if (_ipcp->state != IPCP_INIT) {
- pthread_mutex_unlock(&_ipcp->state_lock);
+ if (ipcp_get_state(_ipcp) != IPCP_INIT) {
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_ERR("IPCP in wrong state.");
close(fd);
return -1;
@@ -1043,7 +1014,7 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf)
shim_data(_ipcp)->device = device;
shim_data(_ipcp)->tx_offset = 0;
- _ipcp->state = IPCP_ENROLLED;
+ ipcp_set_state(_ipcp, IPCP_ENROLLED);
pthread_create(&shim_data(_ipcp)->sdu_reader,
NULL,
@@ -1055,7 +1026,7 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf)
eth_llc_ipcp_sdu_writer,
NULL);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_DBG("Bootstrapped shim IPCP over Ethernet with LLC with api %d.",
getpid());
@@ -1065,21 +1036,15 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf)
static int eth_llc_ipcp_name_reg(char * name)
{
- pthread_mutex_lock(&_ipcp->state_lock);
-
- if (_ipcp->state != IPCP_ENROLLED) {
- pthread_mutex_unlock(&_ipcp->state_lock);
- LOG_DBGF("Won't register with non-enrolled IPCP.");
- return -1; /* -ENOTENROLLED */
- }
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
if (ipcp_data_add_reg_entry(_ipcp->data, name)) {
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_ERR("Failed to add %s to local registry.", name);
return -1;
}
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_DBG("Registered %s.", name);
@@ -1088,11 +1053,11 @@ static int eth_llc_ipcp_name_reg(char * name)
static int eth_llc_ipcp_name_unreg(char * name)
{
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
ipcp_data_del_reg_entry(_ipcp->data, name);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
return 0;
}
@@ -1120,19 +1085,19 @@ static int eth_llc_ipcp_flow_alloc(pid_t n_api,
if (rb == NULL)
return -1; /* -ENORBUFF */
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
- if (_ipcp->state != IPCP_ENROLLED) {
+ if (ipcp_get_state(_ipcp) != IPCP_ENROLLED) {
+ pthread_rwlock_unlock(&_ipcp->state_lock);
shm_ap_rbuff_close(rb);
- pthread_mutex_unlock(&_ipcp->state_lock);
LOG_DBGF("Won't allocate flow with non-enrolled IPCP.");
return -1; /* -ENOTENROLLED */
}
index = bmp_allocate(shim_data(_ipcp)->indices);
if (index < 0) {
+ pthread_rwlock_unlock(&_ipcp->state_lock);
shm_ap_rbuff_close(rb);
- pthread_mutex_unlock(&_ipcp->state_lock);
return -1;
}
@@ -1143,7 +1108,7 @@ static int eth_llc_ipcp_flow_alloc(pid_t n_api,
shm_ap_rbuff_close(rb);
bmp_release(shim_data(_ipcp)->indices, index);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
return -1;
}
@@ -1153,7 +1118,7 @@ static int eth_llc_ipcp_flow_alloc(pid_t n_api,
shim_data(_ipcp)->flows[index].sap = ssap;
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
memset(r_addr, 0xff, MAC_SIZE * sizeof(uint8_t));
@@ -1161,11 +1126,11 @@ static int eth_llc_ipcp_flow_alloc(pid_t n_api,
dst_name,
src_ae_name) < 0) {
LOG_DBGF("Port alloc returned -1.");
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
pthread_rwlock_wrlock(&shim_data(_ipcp)->flows_lock);
destroy_ipcp_flow(index);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
return -1;
}
@@ -1183,20 +1148,20 @@ static int eth_llc_ipcp_flow_alloc_resp(pid_t n_api,
int index = -1;
uint8_t ssap = 0;
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
pthread_rwlock_wrlock(&shim_data(_ipcp)->flows_lock);
index = port_id_to_index(port_id);
if (index < 0) {
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_DBGF("Could not find flow with port_id %d.", port_id);
return -1;
}
if (ipcp_flow(index)->state != FLOW_PENDING) {
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_DBGF("Flow was not pending.");
return -1;
}
@@ -1208,7 +1173,7 @@ static int eth_llc_ipcp_flow_alloc_resp(pid_t n_api,
ipcp_flow(index)->port_id = -1;
bmp_release(shim_data(_ipcp)->indices, index);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
return -1;
}
@@ -1219,7 +1184,7 @@ static int eth_llc_ipcp_flow_alloc_resp(pid_t n_api,
shm_ap_rbuff_close(ipcp_flow(index)->rb);
bmp_release(shim_data(_ipcp)->indices, index);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
return -1;
}
@@ -1228,17 +1193,17 @@ static int eth_llc_ipcp_flow_alloc_resp(pid_t n_api,
shim_data(_ipcp)->flows[index].sap = ssap;
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
if (eth_llc_ipcp_port_alloc_resp(shim_data(_ipcp)->flows[index].r_addr,
shim_data(_ipcp)->flows[index].r_sap,
ssap,
response) < 0) {
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
pthread_rwlock_wrlock(&shim_data(_ipcp)->flows_lock);
destroy_ipcp_flow(index);
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
LOG_DBGF("Could not send response.");
return -1;
@@ -1257,13 +1222,13 @@ static int eth_llc_ipcp_flow_dealloc(int port_id)
int i;
int ret;
- pthread_mutex_lock(&_ipcp->state_lock);
+ pthread_rwlock_rdlock(&_ipcp->state_lock);
pthread_rwlock_wrlock(&shim_data(_ipcp)->flows_lock);
index = port_id_to_index(port_id);
if (index < 0) {
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
return 0;
}
@@ -1277,7 +1242,7 @@ static int eth_llc_ipcp_flow_dealloc(int port_id)
pthread_rwlock_unlock(&shim_data(_ipcp)->flows_lock);
ret = eth_llc_ipcp_port_dealloc(addr, sap);
- pthread_mutex_unlock(&_ipcp->state_lock);
+ pthread_rwlock_unlock(&_ipcp->state_lock);
if (ret < 0)
LOG_DBGF("Could not notify remote.");
@@ -1353,8 +1318,6 @@ int main(int argc, char * argv[])
_ipcp->ops = &eth_llc_ops;
_ipcp->state = IPCP_INIT;
- pthread_mutex_lock(&_ipcp->state_lock);
-
pthread_sigmask(SIG_BLOCK, &sigset, NULL);
pthread_create(&shim_data(_ipcp)->mainloop, NULL,
@@ -1362,8 +1325,6 @@ int main(int argc, char * argv[])
pthread_sigmask(SIG_UNBLOCK, &sigset, NULL);
- pthread_mutex_unlock(&_ipcp->state_lock);
-
if (ipcp_create_r(getpid())) {
LOG_ERR("Failed to notify IRMd we are initialized.");
close_logfile();
@@ -1372,6 +1333,12 @@ int main(int argc, char * argv[])
pthread_join(shim_data(_ipcp)->mainloop, NULL);
+ pthread_cancel(shim_data(_ipcp)->sdu_reader);
+ pthread_cancel(shim_data(_ipcp)->sdu_writer);
+
+ pthread_join(shim_data(_ipcp)->sdu_writer, NULL);
+ pthread_join(shim_data(_ipcp)->sdu_reader, NULL);
+
eth_llc_ipcp_data_destroy();
free(_ipcp);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 02:01:41 +0000