From 8ca960fa0274018cb4f94a1826029d74e6f762e0 Mon Sep 17 00:00:00 2001 From: Dimitri Staessens Date: Mon, 21 Jun 2021 20:24:03 +0200 Subject: lib, ipcpd, irmd: Wrap pthread unlocks for cleanup This add an ouroboros/pthread.h header that wraps the pthread_..._unlock() functions for cleanup using pthread_cleanup_push() as this casting is not safe (and there were definitely bad casts in the code). The close() function is now also wrapped for cleanup in ouroboros/sockets.h. This allows enabling more compiler checks. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders --- src/ipcpd/broadcast/dt.c | 13 ++++++++----- src/ipcpd/common/connmgr.c | 5 ++--- src/ipcpd/eth/eth.c | 13 +++---------- src/ipcpd/ipcp.c | 18 ++++++------------ src/ipcpd/udp/main.c | 19 +++++++++++-------- src/ipcpd/unicast/dht.c | 18 +++++++----------- src/ipcpd/unicast/fa.c | 5 ++--- src/ipcpd/unicast/pol/link_state.c | 19 ++++++++++--------- 8 files changed, 49 insertions(+), 61 deletions(-) (limited to 'src/ipcpd') diff --git a/src/ipcpd/broadcast/dt.c b/src/ipcpd/broadcast/dt.c index 8b15008b..00476027 100644 --- a/src/ipcpd/broadcast/dt.c +++ b/src/ipcpd/broadcast/dt.c @@ -40,6 +40,7 @@ #include #include #include +#include #include "common/comp.h" #include "common/connmgr.h" @@ -49,7 +50,6 @@ #include #include #include -#include struct nb { struct list_head next; @@ -156,8 +156,7 @@ static void dt_packet(uint8_t * buf, pthread_rwlock_rdlock(&fwd.nbs_lock); - pthread_cleanup_push((void (*))(void *) pthread_rwlock_unlock, - &fwd.nbs_lock); + pthread_cleanup_push(__cleanup_rwlock_unlock, &fwd.nbs_lock); list_for_each(p, &fwd.nbs) { struct nb * nb = list_entry(p, struct nb, next); @@ -168,6 +167,11 @@ static void dt_packet(uint8_t * buf, pthread_cleanup_pop(true); } +static void __cleanup_fqueue_destroy(void * fq) +{ + fqueue_destroy((fqueue_t *) fq); +} + static void * dt_reader(void * o) { fqueue_t * fq; @@ -182,8 +186,7 @@ static void * dt_reader(void * o) if (fq == NULL) return (void *) -1; - pthread_cleanup_push((void (*) (void *)) fqueue_destroy, - (void *) fq); + pthread_cleanup_push(__cleanup_fqueue_destroy, (void *) fq); while (true) { ret = fevent(fwd.set, fq, NULL); diff --git a/src/ipcpd/common/connmgr.c b/src/ipcpd/common/connmgr.c index 9002467c..53a66992 100644 --- a/src/ipcpd/common/connmgr.c +++ b/src/ipcpd/common/connmgr.c @@ -28,11 +28,11 @@ #include #include #include +#include #include "connmgr.h" #include "ipcp.h" -#include #include #include #include @@ -493,8 +493,7 @@ int connmgr_wait(enum comp_id id, pthread_mutex_lock(&comp->lock); - pthread_cleanup_push((void(*)(void *))pthread_mutex_unlock, - (void *) &comp->lock); + pthread_cleanup_push(__cleanup_mutex_unlock, &comp->lock); while (list_is_empty(&comp->pending)) pthread_cond_wait(&comp->cond, &comp->lock); diff --git a/src/ipcpd/eth/eth.c b/src/ipcpd/eth/eth.c index 13a4a7e3..932034d5 100644 --- a/src/ipcpd/eth/eth.c +++ b/src/ipcpd/eth/eth.c @@ -48,13 +48,13 @@ #include #include #include +#include #include "ipcp.h" #include "shim-data.h" #include #include -#include #include #include #include @@ -807,8 +807,7 @@ static void * eth_ipcp_mgmt_handler(void * o) (void) o; - pthread_cleanup_push((void (*)(void *)) pthread_mutex_unlock, - (void *) ð_data.mgmt_lock); + pthread_cleanup_push(__cleanup_mutex_unlock, ð_data.mgmt_lock); while (true) { ret = 0; @@ -1162,12 +1161,6 @@ static void change_flows_state(bool up) pthread_rwlock_unlock(ð_data.flows_lock); } -static void close_ptr(void * o) -{ - close(*((int *) o)); -} - - static void * eth_ipcp_if_monitor(void * o) { int fd; @@ -1188,7 +1181,7 @@ static void * eth_ipcp_if_monitor(void * o) return (void *) -1; } - pthread_cleanup_push(close_ptr, &fd); + pthread_cleanup_push(__cleanup_close_ptr, &fd); while (true) { status = recvmsg(fd, &msg, 0); diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c index 8c9d3525..56cdb5d2 100644 --- a/src/ipcpd/ipcp.c +++ b/src/ipcpd/ipcp.c @@ -54,6 +54,7 @@ #include #include #include +#include #include "ipcp.h" @@ -207,11 +208,6 @@ static struct rib_ops r_ops = { .getattr = ipcp_stat_getattr }; -static void close_ptr(void * o) -{ - close(*((int *) o)); -} - static void * acceptloop(void * o) { int csockfd; @@ -239,7 +235,7 @@ static void * acceptloop(void * o) break; } - pthread_cleanup_push(close_ptr, &csockfd); + pthread_cleanup_push(__cleanup_close_ptr, &csockfd); pthread_cleanup_push(free, cmd); cmd->len = read(csockfd, cmd->cbuf, SOCK_BUF_SIZE); @@ -295,8 +291,7 @@ static void * mainloop(void * o) pthread_mutex_lock(&ipcpi.cmd_lock); - pthread_cleanup_push((void *)(void *) pthread_mutex_unlock, - &ipcpi.cmd_lock); + pthread_cleanup_push(__cleanup_mutex_unlock, &ipcpi.cmd_lock); while (list_is_empty(&ipcpi.cmds)) pthread_cond_wait(&ipcpi.cmd_cond, &ipcpi.cmd_lock); @@ -318,7 +313,7 @@ static void * mainloop(void * o) tpm_dec(ipcpi.tpm); - pthread_cleanup_push(close_ptr, &sfd); + pthread_cleanup_push(__cleanup_close_ptr, &sfd); pthread_cleanup_push(free_msg, msg); switch (msg->code) { @@ -665,7 +660,7 @@ static void * mainloop(void * o) ipcp_msg__pack(&ret_msg, buffer.data); - pthread_cleanup_push(close_ptr, &sfd); + pthread_cleanup_push(__cleanup_close_ptr, &sfd); if (write(sfd, buffer.data, buffer.len) == -1) log_warn("Failed to send reply message"); @@ -955,8 +950,7 @@ int ipcp_wait_state(enum ipcp_state state, pthread_mutex_lock(&ipcpi.state_mtx); - pthread_cleanup_push((void *)(void *) pthread_mutex_unlock, - &ipcpi.state_mtx); + pthread_cleanup_push(__cleanup_mutex_unlock, &ipcpi.state_mtx); while (ipcpi.state != state && ipcpi.state != IPCP_SHUTDOWN diff --git a/src/ipcpd/udp/main.c b/src/ipcpd/udp/main.c index 13db0c1f..03de24ab 100644 --- a/src/ipcpd/udp/main.c +++ b/src/ipcpd/udp/main.c @@ -39,6 +39,7 @@ #include #include #include +#include #include "ipcp.h" #include "shim-data.h" @@ -51,7 +52,6 @@ #include #include #include -#include #include #include @@ -393,8 +393,7 @@ static void * ipcp_udp_mgmt_handler(void * o) { (void) o; - pthread_cleanup_push((void (*)(void *)) pthread_mutex_unlock, - (void *) &udp_data.mgmt_lock); + pthread_cleanup_push(__cleanup_mutex_unlock, &udp_data.mgmt_lock); while (true) { struct mgmt_frame * frame; @@ -485,9 +484,14 @@ static void * ipcp_udp_packet_reader(void * o) return 0; } -static void cleanup_writer(void * o) +static void cleanup_fqueue(void * fq) { - fqueue_destroy((fqueue_t *) o); + fqueue_destroy((fqueue_t *) fq); +} + +static void cleanup_sdb(void * sdb) +{ + ipcp_sdb_release((struct shm_du_buff *) sdb); } static void * ipcp_udp_packet_writer(void * o) @@ -502,7 +506,7 @@ static void * ipcp_udp_packet_writer(void * o) ipcp_lock_to_core(); - pthread_cleanup_push(cleanup_writer, fq); + pthread_cleanup_push(cleanup_fqueue, fq); while (true) { struct sockaddr_in saddr; @@ -545,8 +549,7 @@ static void * ipcp_udp_packet_writer(void * o) memcpy(buf, &eid, sizeof(eid)); - pthread_cleanup_push((void (*)(void *)) - ipcp_sdb_release, (void *) sdb); + pthread_cleanup_push(cleanup_sdb, sdb); if (sendto(udp_data.s_fd, buf, len + OUR_HEADER_LEN, MSG_CONFIRM, diff --git a/src/ipcpd/unicast/dht.c b/src/ipcpd/unicast/dht.c index 3dc592db..2b668f9f 100644 --- a/src/ipcpd/unicast/dht.c +++ b/src/ipcpd/unicast/dht.c @@ -42,12 +42,12 @@ #include #include #include +#include #include "common/connmgr.h" #include "dht.h" #include "dt.h" -#include #include #include #include @@ -308,8 +308,7 @@ int dht_wait_running(struct dht * dht) pthread_mutex_lock(&dht->mtx); - pthread_cleanup_push((void *)(void *) pthread_mutex_unlock, - &dht->mtx); + pthread_cleanup_push(__cleanup_mutex_unlock, &dht->mtx); while (dht->state == DHT_JOINING) pthread_cond_wait(&dht->cond, &dht->mtx); @@ -466,8 +465,7 @@ static int kad_req_wait(struct kad_req * req, req->state = REQ_PENDING; - pthread_cleanup_push((void *)(void *) pthread_mutex_unlock, - &req->lock); + pthread_cleanup_push(__cleanup_mutex_unlock, &req->lock); while (req->state == REQ_PENDING && ret != -ETIMEDOUT) ret = -pthread_cond_timedwait(&req->cond, &req->lock, &abs); @@ -819,8 +817,7 @@ static void lookup_update(struct dht * dht, return; } - pthread_cleanup_push((void *)(void *) pthread_mutex_unlock, - &lu->lock); + pthread_cleanup_push(__cleanup_mutex_unlock, &lu->lock); while (lu->state == LU_INIT) { pthread_rwlock_unlock(&dht->lock); @@ -967,7 +964,7 @@ static void lookup_set_state(struct lookup * lu, pthread_mutex_unlock(&lu->lock); } -static void cleanup_wait(void * o) +static void cancel_lookup_wait(void * o) { struct lookup * lu = (struct lookup *) o; lu->state = LU_NULL; @@ -991,7 +988,7 @@ static enum lookup_state lookup_wait(struct lookup * lu) if (lu->state == LU_INIT || lu->state == LU_UPDATE) lu->state = LU_PENDING; - pthread_cleanup_push(cleanup_wait, lu); + pthread_cleanup_push(cancel_lookup_wait, lu); while (lu->state == LU_PENDING && ret != -ETIMEDOUT) ret = -pthread_cond_timedwait(&lu->cond, &lu->lock, &abs); @@ -2421,8 +2418,7 @@ static void * dht_handle_packet(void * o) pthread_mutex_lock(&dht->mtx); - pthread_cleanup_push((void *)(void *) pthread_mutex_unlock, - &dht->mtx); + pthread_cleanup_push(__cleanup_mutex_unlock, &dht->mtx); while (list_is_empty(&dht->cmds)) pthread_cond_wait(&dht->cond, &dht->mtx); diff --git a/src/ipcpd/unicast/fa.c b/src/ipcpd/unicast/fa.c index b3b9b42c..3ebdc1f1 100644 --- a/src/ipcpd/unicast/fa.c +++ b/src/ipcpd/unicast/fa.c @@ -38,6 +38,7 @@ #include #include #include +#include #include "dir.h" #include "fa.h" @@ -47,7 +48,6 @@ #include "ca.h" #include -#include #include #include @@ -442,8 +442,7 @@ static void * fa_handle_packet(void * o) pthread_mutex_lock(&fa.mtx); - pthread_cleanup_push((void (*)(void *)) pthread_mutex_unlock, - &fa.mtx); + pthread_cleanup_push(__cleanup_mutex_unlock, &fa.mtx); while (list_is_empty(&fa.cmds)) pthread_cond_wait(&fa.cond, &fa.mtx); diff --git a/src/ipcpd/unicast/pol/link_state.c b/src/ipcpd/unicast/pol/link_state.c index e8983ec6..cca85d63 100644 --- a/src/ipcpd/unicast/pol/link_state.c +++ b/src/ipcpd/unicast/pol/link_state.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include @@ -52,7 +53,6 @@ #include #include #include -#include #define RECALC_TIME 4 #define LS_UPDATE_TIME 15 @@ -648,8 +648,7 @@ static void * lsupdate(void * o) pthread_rwlock_wrlock(&ls.db_lock); - pthread_cleanup_push((void (*) (void *)) pthread_rwlock_unlock, - (void *) &ls.db_lock); + pthread_cleanup_push(__cleanup_rwlock_unlock, &ls.db_lock); list_for_each_safe(p, h, &ls.db) { struct adjacency * adj; @@ -709,8 +708,7 @@ static void forward_lsm(uint8_t * buf, pthread_rwlock_rdlock(&ls.db_lock); - pthread_cleanup_push((void (*))(void *) pthread_rwlock_unlock, - &ls.db_lock); + pthread_cleanup_push(__cleanup_rwlock_unlock, &ls.db_lock); list_for_each(p, &ls.nbs) { struct nb * nb = list_entry(p, struct nb, next); @@ -721,6 +719,11 @@ static void forward_lsm(uint8_t * buf, pthread_cleanup_pop(true); } +static void cleanup_fqueue(void * fq) +{ + fqueue_destroy((fqueue_t *) fq); +} + static void * lsreader(void * o) { fqueue_t * fq; @@ -739,8 +742,7 @@ static void * lsreader(void * o) if (fq == NULL) return (void *) -1; - pthread_cleanup_push((void (*) (void *)) fqueue_destroy, - (void *) fq); + pthread_cleanup_push(cleanup_fqueue, fq); while (true) { ret = fevent(ls.mgmt_set, fq, NULL); @@ -813,8 +815,7 @@ static void handle_event(void * self, case NOTIFY_DT_CONN_ADD: pthread_rwlock_rdlock(&ls.db_lock); - pthread_cleanup_push((void (*) (void *)) pthread_rwlock_unlock, - (void *) &ls.db_lock); + pthread_cleanup_push(__cleanup_rwlock_unlock, &ls.db_lock); send_lsm(ipcpi.dt_addr, c->conn_info.addr, 0); pthread_cleanup_pop(true); -- cgit v1.2.3