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-rw-r--r--announce.c8
-rw-r--r--cfgdir.c2
-rw-r--r--idle.c39
-rw-r--r--igmp.c77
-rw-r--r--main.c42
-rw-r--r--main.h12
-rw-r--r--proxy.c27
-rw-r--r--rcon.c67
-rw-r--r--server.c10
-rw-r--r--systemd.c23
-rw-r--r--uring.c158
-rw-r--r--uring.h2
-rw-r--r--utils.c54
13 files changed, 323 insertions, 198 deletions
diff --git a/announce.c b/announce.c
index ba98fef..9195cd2 100644
--- a/announce.c
+++ b/announce.c
@@ -30,7 +30,7 @@ mcast_sent(struct cfg *cfg, struct uring_task *task, int res)
{
struct server *server = container_of(task->tbuf, struct server, mcast_buf);
- assert_return(task && task->tbuf);
+ assert_return(cfg && task && task->tbuf);
if (res < 0)
error("failure %i", res);
@@ -110,7 +110,7 @@ announce_free(struct uring_task *task)
void
announce_refdump(struct announce *aev)
{
- assert_return(aev);
+ assert_return_silent(aev);
uring_task_refdump(&aev->task);
uring_task_refdump(&aev->mcast_task);
@@ -188,10 +188,10 @@ announce_init(struct cfg *cfg)
if (sfd < 0)
die("socket: %m");
- uring_task_init(&aev->task, "aev", uring_parent(cfg), announce_free);
+ uring_task_init(cfg, &aev->task, "aev", uring_parent(cfg), announce_free);
uring_task_set_fd(&aev->task, afd);
- uring_task_init(&aev->mcast_task, "aev_mcast", &aev->task, mcast_free);
+ uring_task_init(cfg, &aev->mcast_task, "aev_mcast", &aev->task, mcast_free);
uring_task_set_fd(&aev->mcast_task, sfd);
saddr_set_ipv4(&aev->mcast_task.saddr, cinet_addr(224,0,2,60), htons(4445));
diff --git a/cfgdir.c b/cfgdir.c
index 54d6450..8f6d9a3 100644
--- a/cfgdir.c
+++ b/cfgdir.c
@@ -555,7 +555,7 @@ cfgdir_init(struct cfg *cfg)
if (iwd < 0)
die("inotify_add_watch: %m");
- uring_task_init(&iev->task, "iev", uring_parent(cfg), inotify_free);
+ uring_task_init(cfg, &iev->task, "iev", uring_parent(cfg), inotify_free);
uring_task_set_fd(&iev->task, ifd);
cfg->iev = iev;
uring_read(cfg, &iev->task, iev->buf, sizeof(iev->buf), inotify_cb);
diff --git a/idle.c b/idle.c
index 4bd0656..ef588fd 100644
--- a/idle.c
+++ b/idle.c
@@ -30,12 +30,15 @@ idle_check_free(struct uring_task *task)
{
struct idle *idle = container_of(task, struct idle, idlecheck);
+ assert_return(task && idle);
debug(DBG_IDLE, "task %p, idle %p", task, idle);
}
static inline void
write_byte(char **pos, char byte)
{
+ assert_return(pos && *pos);
+
**pos = byte;
(*pos)++;
}
@@ -49,6 +52,8 @@ write_byte(char **pos, char byte)
static inline void
write_varint(char **pos, int32_t orig)
{
+ assert_return(pos && *pos);
+
uint32_t val = (uint32_t)orig;
while (val) {
@@ -72,6 +77,8 @@ read_varint(char **pos, size_t *remain, int32_t *res)
unsigned consumed;
uint32_t val = 0;
+ assert_return(pos && *pos && remain && res, -1);
+
for (consumed = 1; consumed <= *remain; consumed++) {
uint32_t tmp;
@@ -96,6 +103,8 @@ read_varint(char **pos, size_t *remain, int32_t *res)
static inline void
write_bytes(char **pos, const char *bytes, size_t n)
{
+ assert_return(pos && *pos && bytes && n > 0);
+
memcpy(*pos, bytes, n);
*pos += n;
}
@@ -103,12 +112,16 @@ write_bytes(char **pos, const char *bytes, size_t n)
static inline void
write_str(char **pos, const char *str)
{
+ assert_return(pos && *pos && !empty_str(str));
+
write_bytes(pos, str, strlen(str));
}
static inline void
write_cmd(char **pos, const char *begin, const char *end)
{
+ assert_return(pos && *pos && begin && end && end > begin);
+
write_varint(pos, end - begin);
write_bytes(pos, begin, end - begin);
}
@@ -121,6 +134,7 @@ idle_check_handshake_complete(struct cfg *cfg, struct uring_task *task, int res)
int32_t mclen;
int r;
+ assert_return(cfg && task, -EINVAL);
assert_task_alive_or(DBG_IDLE, task, return -EINTR);
remain = task->tbuf->len;
@@ -163,6 +177,8 @@ get_player_count(struct cfg *cfg, const char *pos, size_t remain)
char *end;
unsigned count;
+ assert_return(cfg && pos && remain > 0, -1);
+
online = memmem(pos, remain, ONLINE_NEEDLE, strlen(ONLINE_NEEDLE));
if (!online) {
error("could not find online count in JSON");
@@ -197,6 +213,7 @@ idle_check_handshake_reply(struct cfg *cfg, struct uring_task *task, int res)
int player_count;
int r;
+ assert_return(cfg && task);
assert_task_alive(DBG_IDLE, task);
debug(DBG_IDLE, "res: %i", res);
@@ -280,6 +297,7 @@ idle_check_handshake_sent(struct cfg *cfg, struct uring_task *task, int res)
{
struct idle *idle = container_of(task, struct idle, idlecheck);
+ assert_return(cfg && task);
assert_task_alive(DBG_IDLE, task);
debug(DBG_IDLE, "sent %i bytes", res);
@@ -303,6 +321,7 @@ idle_check_connected_cb(struct cfg *cfg, struct connection *conn, bool connected
uint16_t port;
char hostname[INET6_ADDRSTRLEN];
+ assert_return(cfg && conn);
assert_task_alive(DBG_IDLE, &idle->idlecheck);
if (!connected) {
@@ -322,7 +341,6 @@ idle_check_connected_cb(struct cfg *cfg, struct connection *conn, bool connected
pos = buf;
write_byte(&pos, MC_HELO);
write_varint(&pos, -1); /* Protocol version, -1 = undefined */
- write_varint(&pos, strlen(hostname));
write_str(&pos, hostname);
write_byte(&pos, (port >> 8) & 0xff);
write_byte(&pos, (port >> 0) & 0xff);
@@ -344,6 +362,7 @@ idle_cb(struct cfg *cfg, struct uring_task *task, int res)
{
struct idle *idle = container_of(task, struct idle, task);
+ assert_return(cfg && task);
assert_task_alive(DBG_IDLE, task);
if (res != sizeof(idle->value)) {
@@ -367,6 +386,7 @@ idle_free(struct uring_task *task)
{
struct idle *idle = container_of(task, struct idle, task);
+ assert_return(task);
debug(DBG_IDLE, "task %p, idle %p", task, idle);
xfree(idle);
}
@@ -374,8 +394,7 @@ idle_free(struct uring_task *task)
void
idle_refdump(struct idle *idle)
{
- if (!idle)
- return;
+ assert_return_silent(idle);
uring_task_refdump(&idle->task);
uring_task_refdump(&idle->idlecheck);
@@ -384,11 +403,12 @@ idle_refdump(struct idle *idle)
void
idle_delete(struct cfg *cfg, struct server *server)
{
- struct idle *idle = server->idle;
+ struct idle *idle;
- if (!idle)
- return;
+ assert_return(cfg && server);
+ assert_return_silent(server->idle);
+ idle = server->idle;
debug(DBG_IDLE, "closing fd %i", idle->task.fd);
uring_task_destroy(cfg, &idle->idlecheck);
uring_task_destroy(cfg, &idle->task);
@@ -412,8 +432,7 @@ idle_init(struct cfg *cfg, struct server *server)
}
};
- if (!server)
- return;
+ assert_return(cfg && server);
if (server->idle_timeout < 1)
return;
@@ -429,9 +448,9 @@ idle_init(struct cfg *cfg, struct server *server)
if (timerfd_settime(ifd, 0, &tspec, NULL) != 0)
die("timerfd_settime: %m");
- uring_task_init(&idle->task, "idle", &server->task, idle_free);
+ uring_task_init(cfg, &idle->task, "idle", &server->task, idle_free);
uring_task_set_fd(&idle->task, ifd);
- uring_task_init(&idle->idlecheck, "idlecheck", &idle->task, idle_check_free);
+ uring_task_init(cfg, &idle->idlecheck, "idlecheck", &idle->task, idle_check_free);
uring_task_set_buf(&idle->idlecheck, &idle->tbuf);
idle->server = server;
server->idle = idle;
diff --git a/igmp.c b/igmp.c
index b809e4b..01a4dc4 100644
--- a/igmp.c
+++ b/igmp.c
@@ -105,63 +105,68 @@ from32to16(unsigned int x)
}
static unsigned int
-do_csum(const unsigned char *buff, int len)
+do_csum(const unsigned char *buf, int len)
{
int odd;
unsigned int result = 0;
- if (len <= 0)
- goto out;
- odd = 1 & (unsigned long) buff;
+ assert_return(buf && len > 0, 0);
+
+ odd = 1 & (unsigned long)buf;
if (odd) {
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
- result += (*buff << 8);
+ result += (*buf << 8);
#else
- result = *buff;
+ result = *buf;
#endif
len--;
- buff++;
+ buf++;
}
+
if (len >= 2) {
- if (2 & (unsigned long) buff) {
- result += *(unsigned short *) buff;
+ if (2 & (unsigned long)buf) {
+ result += *(unsigned short *)buf;
len -= 2;
- buff += 2;
+ buf += 2;
}
if (len >= 4) {
- const unsigned char *end = buff + ((unsigned)len & ~3);
+ const unsigned char *end = buf + ((unsigned)len & ~3);
unsigned int carry = 0;
do {
- unsigned int w = *(unsigned int *) buff;
- buff += 4;
+ unsigned int w = *(unsigned int *)buf;
+ buf += 4;
result += carry;
result += w;
carry = (w > result);
- } while (buff < end);
+ } while (buf < end);
result += carry;
result = (result & 0xffff) + (result >> 16);
}
if (len & 2) {
- result += *(unsigned short *) buff;
- buff += 2;
+ result += *(unsigned short *)buf;
+ buf += 2;
}
}
+
if (len & 1)
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
- result += *buff;
+ result += *buf;
#else
- result += (*buff << 8);
+ result += (*buf << 8);
#endif
+
result = from32to16(result);
if (odd)
result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
-out:
+
return result;
}
static inline bool
csum_valid(const char *buf, size_t len)
{
+ assert_return(buf && len > 0, false);
+
return do_csum((unsigned const char *)buf, len) == 0xffff;
}
@@ -180,12 +185,18 @@ igmp_match()
static void
igmp_parse(struct cfg *cfg, struct igmp *igmp)
{
- char *buf = igmp->task.tbuf->buf;
- size_t len = igmp->task.tbuf->len;
- struct ipv4_hdr *hdr = (struct ipv4_hdr *)buf;
+ char *buf;
+ size_t len;
+ struct ipv4_hdr *hdr;
size_t body_len;
union igmp_msg *igmp_msg;
+ assert_return(cfg && igmp);
+
+ buf = igmp->task.tbuf->buf;
+ len = igmp->task.tbuf->len;
+ hdr = (struct ipv4_hdr *)buf;
+
if (len <= IPV4_MIN_HDR_LEN)
return;
@@ -389,10 +400,10 @@ igmp_read_cb(struct cfg *cfg, struct uring_task *task, int res)
{
struct igmp *igmp = container_of(task, struct igmp, task);
- debug(DBG_IGMP, "task %p, igmp %p, res %i", task, igmp, res);
-
+ assert_return(cfg && task);
assert_task_alive(DBG_IGMP, task);
+ debug(DBG_IGMP, "task %p, igmp %p, res %i", task, igmp, res);
if (res < 0) {
error("res: %i", res);
return;
@@ -414,6 +425,7 @@ igmp_free(struct uring_task *task)
{
struct igmp *igmp = container_of(task, struct igmp, task);
+ assert_return(task);
debug(DBG_IGMP, "task %p, igmp %p", task, igmp);
xfree(igmp);
}
@@ -421,8 +433,7 @@ igmp_free(struct uring_task *task)
void
igmp_refdump(struct igmp *igmp)
{
- if (!igmp)
- return;
+ assert_return_silent(igmp);
uring_task_refdump(&igmp->task);
}
@@ -430,13 +441,11 @@ igmp_refdump(struct igmp *igmp)
void
igmp_delete(struct cfg *cfg)
{
- struct igmp *igmp = cfg->igmp;
+ assert_return(cfg);
+ assert_return_silent(cfg->igmp);
- if (!igmp)
- return;
-
- debug(DBG_IGMP, "closing fd %i", igmp->task.fd);
- uring_task_destroy(cfg, &igmp->task);
+ debug(DBG_IGMP, "closing fd %i", cfg->igmp->task.fd);
+ uring_task_destroy(cfg, &cfg->igmp->task);
cfg->igmp = NULL;
}
@@ -497,6 +506,8 @@ igmp_init(struct cfg *cfg)
int sfd;
int opt;
+ assert_return(cfg);
+
if (!cfg->do_igmp) {
debug(DBG_IGMP, "igmp snooping disabled");
return;
@@ -567,7 +578,7 @@ igmp_init(struct cfg *cfg)
}
debug(DBG_IGMP, "init successful, using fd %i", sfd);
- uring_task_init(&igmp->task, "igmp", uring_parent(cfg), igmp_free);
+ uring_task_init(cfg, &igmp->task, "igmp", uring_parent(cfg), igmp_free);
uring_task_set_fd(&igmp->task, sfd);
uring_task_set_buf(&igmp->task, &igmp->tbuf);
igmp->task.saddr.addrlen = sizeof(igmp->task.saddr.ll);
diff --git a/main.c b/main.c
index ba9ea37..5d99711 100644
--- a/main.c
+++ b/main.c
@@ -57,6 +57,8 @@ msg(enum debug_lvl lvl, const char *fmt, va_list ap)
const char *color;
const char *sd_lvl;
+ assert_return(lvl != 0 && !empty_str(fmt) && ap);
+
while (first) {
int fd;
const char *e;
@@ -149,6 +151,8 @@ __debug(enum debug_lvl lvl, const char *fmt, ...)
{
va_list ap;
+ assert_return(lvl != 0 && !empty_str(fmt));
+
va_start(ap, fmt);
msg(lvl, fmt, ap);
va_end(ap);
@@ -159,9 +163,13 @@ __die(const char *fmt, ...)
{
va_list ap;
- va_start(ap, fmt);
- msg(DBG_ERROR, fmt, ap);
- va_end(ap);
+ if (!empty_str(fmt)) {
+ va_start(ap, fmt);
+ msg(DBG_ERROR, fmt, ap);
+ va_end(ap);
+ } else
+ error("fmt not set");
+
sd_notifyf(0, "STATUS=Error, shutting down");
exit(EXIT_FAILURE);
};
@@ -171,6 +179,8 @@ cfg_free(struct uring_task *task)
{
struct cfg *cfg = container_of(task, struct cfg, task);
+ assert_return(task);
+
debug(DBG_SIG, "called");
systemd_delete(cfg);
xfree(cfg->igmp_iface);
@@ -213,6 +223,8 @@ cfg_read(struct cfg *cfg)
size_t rd = 0;
size_t r;
+ assert_return(cfg);
+
if (cfg->cfg_path)
path = cfg->cfg_path;
else
@@ -353,7 +365,7 @@ usage(int argc, char **argv, bool invalid)
" -d, --debug=CATEGORY\tenable debugging for CATEGORY\n"
"\t\t\t(use \"list\" to see available categories,\n"
"\t\t\t or \"all\" to enable all categories)\n",
- argv[0]);
+ argv ? argv[0] : "mcproxy");
exit(invalid ? EXIT_FAILURE : EXIT_SUCCESS);
}
@@ -365,13 +377,15 @@ cfg_init(int argc, char **argv)
int c;
unsigned i;
+ assert_die(argc > 0 && argv, "invalid arguments");
+
cfg = zmalloc(sizeof(*cfg));
if (!cfg)
die("malloc: %m");
cfg->uid = geteuid();
cfg->gid = getegid();
- uring_task_init(&cfg->task, "cfg", NULL, cfg_free);
+ uring_task_init(cfg, &cfg->task, "cfg", NULL, cfg_free);
list_init(&cfg->servers);
while (true) {
@@ -475,6 +489,9 @@ cfg_init(int argc, char **argv)
static void
cfg_apply(struct cfg *cfg)
{
+ if (!cfg)
+ die("invalid arguments");
+
if (cfg->uid == 0 || cfg->gid == 0)
/* This catches both -u root and running as root without -u */
die("Execution as root is not supported (use -u <someuser>)");
@@ -538,6 +555,8 @@ signalfd_free(struct uring_task *task)
{
struct signalfd_ev *sev = container_of(task, struct signalfd_ev, task);
+ assert_return(task);
+
debug(DBG_SIG, "called");
sev->cfg->sev = NULL;
xfree(sev);
@@ -548,6 +567,8 @@ dump_tree(struct cfg *cfg)
{
struct server *server;
+ assert_return(cfg);
+
if (!debug_enabled(DBG_REF))
return;
@@ -576,6 +597,7 @@ signalfd_read(struct cfg *cfg, struct uring_task *task, int res)
struct signalfd_ev *sev = container_of(task, struct signalfd_ev, task);
struct server *server, *stmp;
+ assert_return(cfg && task);
assert_task_alive(DBG_SIG, task);
if (res != sizeof(sev->buf))
@@ -621,6 +643,8 @@ hack_handler(int signum, siginfo_t *info, void *ucontext)
{
uint64_t val;
+ assert_return(signum > 0 && info);
+
switch (signum) {
case SIGUSR1:
debug(DBG_SIG, "Got a SIGUSR1");
@@ -660,6 +684,8 @@ signalfd_init(struct cfg *cfg)
//sigset_t mask;
struct signalfd_ev *sev;
+ assert_return(cfg);
+
sev = zmalloc(sizeof(*sev));
if (!sev)
die("malloc: %m");
@@ -667,11 +693,11 @@ signalfd_init(struct cfg *cfg)
/*
sigfillset(&mask);
if (sigprocmask(SIG_BLOCK, &mask, NULL) < 0)
- perrordie("sigprocmask");
+ die("sigprocmask: %m");
sfd = signalfd(-1, &mask, SFD_CLOEXEC);
if (sfd < 0)
- perrordie("signalfd");
+ die("signalfd: %m");
*/
struct sigaction action;
@@ -693,7 +719,7 @@ signalfd_init(struct cfg *cfg)
die("eventfd: %m");
debug(DBG_SIG, "using fd %i", sfd);
- uring_task_init(&sev->task, "sev", uring_parent(cfg), signalfd_free);
+ uring_task_init(cfg, &sev->task, "sev", uring_parent(cfg), signalfd_free);
uring_task_set_fd(&sev->task, sfd);
cfg->sev = sev;
sev->cfg = cfg;
diff --git a/main.h b/main.h
index ccd7221..9759ecf 100644
--- a/main.h
+++ b/main.h
@@ -73,6 +73,18 @@ void __die(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
return __VA_ARGS__; \
} while (0)
+#define assert_return_silent(expr, ...) \
+ do { \
+ if (!(expr)) \
+ return __VA_ARGS__; \
+ } while (0)
+
+#define assert_die(expr, msg) \
+ do { \
+ if (!assert_log(expr, #expr)) \
+ die(msg); \
+ } while (0)
+
#define assert_task_alive_or(lvl, t, cmd) \
do { \
if (!(t)) { \
diff --git a/proxy.c b/proxy.c
index a629d7c..05117fd 100644
--- a/proxy.c
+++ b/proxy.c
@@ -10,6 +10,8 @@
void
proxy_refdump(struct server_proxy *proxy)
{
+ assert_return(proxy);
+
uring_task_refdump(&proxy->task);
uring_task_refdump(&proxy->clienttask);
uring_task_refdump(&proxy->servertask);
@@ -21,6 +23,8 @@ format_bytes(char *buf, size_t len, uint64_t val)
uint64_t tmp;
const char *suffix = "B";
+ assert_return(buf && len > 0);
+
tmp = val * 10;
if (val > 1152921504606846976ULL) {
tmp = val / 115292150460684697ULL;
@@ -50,6 +54,8 @@ format_time(char *buf, size_t len, time_t diff)
{
unsigned hh, mm, ss;
+ assert_return(buf && len > 0);
+
hh = diff / 3600;
diff %= 3600;
mm = diff / 60;
@@ -67,6 +73,8 @@ proxy_free(struct uring_task *task)
char stc[100];
char duration[100];
+ assert_return(task);
+
debug(DBG_PROXY, "server: %s, src: %s, dst: %s",
proxy->server->name,
proxy->client_conn.remote.addrstr,
@@ -94,6 +102,8 @@ proxy_client_free(struct uring_task *task)
{
struct server_proxy *proxy = container_of(task, struct server_proxy, clienttask);
+ assert_return(task);
+
debug(DBG_PROXY, "%s: client connection closed", proxy->server->name);
}
@@ -102,6 +112,8 @@ proxy_server_free(struct uring_task *task)
{
struct server_proxy *proxy = container_of(task, struct server_proxy, servertask);
+ assert_return(task);
+
debug(DBG_PROXY, "%s: server connection closed", proxy->server->name);
}
@@ -110,6 +122,8 @@ proxy_delete(struct cfg *cfg, struct server_proxy *proxy)
{
debug(DBG_PROXY, "%s: shutting down proxy %p", proxy->server->name, proxy);
+ assert_return(cfg && proxy);
+
uring_task_destroy(cfg, &proxy->servertask);
uring_task_destroy(cfg, &proxy->clienttask);
uring_task_destroy(cfg, &proxy->task);
@@ -122,6 +136,7 @@ proxy_client_data_out(struct cfg *cfg, struct uring_task *task, int res)
{
struct server_proxy *proxy = container_of(task, struct server_proxy, clienttask);
+ assert_return(cfg && task);
assert_task_alive(DBG_PROXY, task);
if (res <= 0) {
@@ -141,6 +156,7 @@ proxy_client_data_in(struct cfg *cfg, struct uring_task *task, int res)
{
struct server_proxy *proxy = container_of(task, struct server_proxy, clienttask);
+ assert_return(cfg && task);
assert_task_alive(DBG_PROXY, task);
if (res <= 0) {
@@ -162,6 +178,7 @@ proxy_server_data_out(struct cfg *cfg, struct uring_task *task, int res)
{
struct server_proxy *proxy = container_of(task, struct server_proxy, servertask);
+ assert_return(cfg && task);
assert_task_alive(DBG_PROXY, task);
if (res <= 0) {
@@ -181,6 +198,7 @@ proxy_server_data_in(struct cfg *cfg, struct uring_task *task, int res)
{
struct server_proxy *proxy = container_of(task, struct server_proxy, servertask);
+ assert_return(cfg && task);
assert_task_alive(DBG_PROXY, task);
if (res <= 0) {
@@ -199,6 +217,7 @@ proxy_connected_cb(struct cfg *cfg, struct connection *conn, bool connected)
{
struct server_proxy *proxy = container_of(conn, struct server_proxy, server_conn);
+ assert_return(cfg && conn);
assert_task_alive(DBG_PROXY, &proxy->clienttask);
assert_task_alive(DBG_PROXY, &proxy->servertask);
@@ -225,6 +244,8 @@ proxy_new(struct cfg *cfg, struct server *server, struct saddr *client, int fd)
{
struct server_proxy *proxy;
+ assert_return(cfg && server && client && fd > 0, NULL);
+
proxy = zmalloc(sizeof(*proxy));
if (!proxy) {
error("malloc: %m");
@@ -234,17 +255,17 @@ proxy_new(struct cfg *cfg, struct server *server, struct saddr *client, int fd)
proxy->sfd = -1;
proxy->cfd = fd;
proxy->server = server;
- uring_task_init(&proxy->task, "proxy", &server->task, proxy_free);
+ uring_task_init(cfg, &proxy->task, "proxy", &server->task, proxy_free);
connection_set_local(cfg, &proxy->client_conn, fd);
connection_set_remote(cfg, &proxy->client_conn, client);
- uring_task_init(&proxy->clienttask, "proxy_client", &proxy->task,
+ uring_task_init(cfg, &proxy->clienttask, "proxy_client", &proxy->task,
proxy_client_free);
uring_task_set_buf(&proxy->clienttask, &proxy->clientbuf);
uring_task_set_fd(&proxy->clienttask, fd);
- uring_task_init(&proxy->servertask, "proxy_server", &proxy->task,
+ uring_task_init(cfg, &proxy->servertask, "proxy_server", &proxy->task,
proxy_server_free);
uring_task_set_buf(&proxy->servertask, &proxy->serverbuf);
diff --git a/rcon.c b/rcon.c
index 1a57b89..dc29364 100644
--- a/rcon.c
+++ b/rcon.c
@@ -27,6 +27,8 @@ rcon_free(struct uring_task *task)
{
struct rcon *rcon = container_of(task, struct rcon, task);
+ assert_return(task);
+
debug(DBG_RCON, "task %p, idle %p", task, rcon);
rcon->server->rcon = NULL;
xfree(rcon);
@@ -35,8 +37,7 @@ rcon_free(struct uring_task *task)
void
rcon_refdump(struct rcon *rcon)
{
- if (!rcon)
- return;
+ assert_return_silent(rcon);
uring_task_refdump(&rcon->task);
}
@@ -44,13 +45,10 @@ rcon_refdump(struct rcon *rcon)
void
rcon_delete(struct cfg *cfg, struct server *server)
{
- struct rcon *rcon = server->rcon;
-
- if (!rcon)
- return;
+ assert_return_silent(server->rcon);
- debug(DBG_RCON, "closing fd %i", rcon->task.fd);
- uring_task_destroy(cfg, &rcon->task);
+ debug(DBG_RCON, "closing fd %i", server->rcon->task.fd);
+ uring_task_destroy(cfg, &server->rcon->task);
server->rcon = NULL;
}
@@ -58,11 +56,14 @@ static int32_t
read_int(char **pos, size_t *len)
{
uint32_t val;
- char *p = *pos;
+ char *p;
+
+ assert_return(pos && *pos, 0);
if (len && *len < 4)
return 0;
+ p = *pos;
val = ((uint8_t)p[0] << 0);
val += ((uint8_t)p[1] << 8);
val += ((uint8_t)p[2] << 16);
@@ -79,8 +80,11 @@ static void
write_int(char **pos, size_t *len, int32_t orig)
{
uint32_t val = (uint32_t)orig;
- char *p = *pos;
+ char *p;
+
+ assert_return(pos && *pos);
+ p = *pos;
p[0] = (val >> 0) & 0xff;
p[1] = (val >> 8) & 0xff;
p[2] = (val >> 16) & 0xff;
@@ -94,8 +98,11 @@ write_int(char **pos, size_t *len, int32_t orig)
static void
write_str(char **pos, size_t *len, const char *str)
{
- size_t towrite = strlen(str);
+ size_t towrite;
+ assert_return(pos && *pos && !empty_str(str));
+
+ towrite = strlen(str);
memcpy(*pos, str, towrite);
*pos += towrite;
if (len)
@@ -105,8 +112,11 @@ write_str(char **pos, size_t *len, const char *str)
static void
write_end(char **pos, size_t *len)
{
- char *p = *pos;
+ char *p;
+
+ assert_return(pos && *pos);
+ p = *pos;
p[0] = 0x00;
p[1] = 0x00;
@@ -127,9 +137,12 @@ static void
create_packet(struct cfg *cfg, struct rcon *rcon, int32_t reqid,
enum rcon_packet_type type, const char *msg)
{
- char *pos = &rcon->tbuf.buf[4];
+ char *pos;
+
+ assert_return(cfg && rcon && !empty_str(msg));
/* Body */
+ pos = &rcon->tbuf.buf[4];
rcon->tbuf.len = 4;
write_int(&pos, &rcon->tbuf.len, reqid);
write_int(&pos, &rcon->tbuf.len, type);
@@ -148,12 +161,15 @@ create_packet(struct cfg *cfg, struct rcon *rcon, int32_t reqid,
static int
packet_complete(struct cfg *cfg, struct uring_task *task, int res)
{
- char *pos = task->tbuf->buf;
- size_t len = task->tbuf->len;
+ char *pos;
+ size_t len;
int32_t plen;
+ assert_return(cfg && task, 0);
assert_task_alive_or(DBG_RCON, task, return -EINTR);
+ pos = task->tbuf->buf;
+ len = task->tbuf->len;
if (task->tbuf->len < 14)
return 0;
@@ -171,10 +187,14 @@ static bool
rcon_read_packet(struct cfg *cfg, struct rcon *rcon, int32_t *id,
int32_t *type, char **rmsg)
{
- char *pos = rcon->tbuf.buf;
- size_t len = rcon->tbuf.len;
+ char *pos;
+ size_t len;
int32_t plen;
+ assert_return(cfg && rcon && id && type && rmsg, false);
+
+ pos = rcon->tbuf.buf;
+ len = rcon->tbuf.len;
plen = read_int(&pos, &len);
*id = read_int(&pos, &len);
*type = read_int(&pos, &len);
@@ -216,6 +236,7 @@ rcon_stop_reply(struct cfg *cfg, struct uring_task *task, int res)
int32_t type;
char *msg;
+ assert_return(cfg && task);
assert_task_alive(DBG_RCON, task);
if (res < 0) {
@@ -245,6 +266,7 @@ rcon_stop_sent(struct cfg *cfg, struct uring_task *task, int res)
{
struct rcon *rcon = container_of(task, struct rcon, task);
+ assert_return(cfg && task);
assert_task_alive(DBG_RCON, task);
if (res < 0) {
@@ -265,6 +287,7 @@ rcon_login_reply(struct cfg *cfg, struct uring_task *task, int res)
int32_t type;
char *msg;
+ assert_return(cfg && task);
assert_task_alive(DBG_RCON, task);
if (res < 0) {
@@ -300,6 +323,7 @@ rcon_login_sent(struct cfg *cfg, struct uring_task *task, int res)
{
struct rcon *rcon = container_of(task, struct rcon, task);
+ assert_return(cfg && task);
assert_task_alive(DBG_RCON, task);
if (res < 0) {
@@ -317,6 +341,7 @@ rcon_connected_cb(struct cfg *cfg, struct connection *conn, bool connected)
{
struct rcon *rcon = container_of(conn, struct rcon, conn);
+ assert_return(cfg && conn);
assert_task_alive(DBG_RCON, &rcon->task);
if (!connected) {
@@ -335,17 +360,13 @@ rcon_init(struct cfg *cfg, struct server *server)
{
struct rcon *rcon;
- if (!server)
- return;
-
- if (list_empty(&server->rcons) || !server->rcon_password)
- return;
+ assert_return(cfg && server && !list_empty(&server->rcons) && !empty_str(server->rcon_password));
rcon = zmalloc(sizeof(*rcon));
if (!rcon)
die("malloc: %m");
- uring_task_init(&rcon->task, "rcon", &server->task, rcon_free);
+ uring_task_init(cfg, &rcon->task, "rcon", &server->task, rcon_free);
uring_task_set_buf(&rcon->task, &rcon->tbuf);
rcon->server = server;
server->rcon = rcon;
diff --git a/server.c b/server.c
index c8f75f7..452e45f 100644
--- a/server.c
+++ b/server.c
@@ -58,8 +58,8 @@ server_refdump(struct server *server)
uring_task_refdump(&local->task);
list_for_each_entry(proxy, &server->proxys, list)
proxy_refdump(proxy);
- if (server->idle)
- idle_refdump(server->idle);
+ idle_refdump(server->idle);
+ rcon_refdump(server->rcon);
}
static void
@@ -642,7 +642,7 @@ server_add_local(struct cfg *cfg, struct server *server, struct saddr *saddr)
debug(DBG_SRV, "adding local: %s", saddr->addrstr);
local->local = *saddr;
- uring_task_init(&local->task, "local", &server->task, server_local_free);
+ uring_task_init(cfg, &local->task, "local", &server->task, server_local_free);
list_add(&local->list, &server->locals);
xfree(saddr);
return true;
@@ -804,9 +804,9 @@ server_new(struct cfg *cfg, const char *name)
server->name = xstrdup(name);
server->stop_method = SERVER_STOP_METHOD_UNDEFINED;
server->start_method = SERVER_START_METHOD_UNDEFINED;
- uring_task_init(&server->task, "server", uring_parent(cfg), server_free);
+ uring_task_init(cfg, &server->task, "server", uring_parent(cfg), server_free);
uring_task_set_buf(&server->task, &server->tbuf);
- uring_task_init(&server->exec_task, "exec", &server->task, server_exec_free);
+ uring_task_init(cfg, &server->exec_task, "exec", &server->task, server_exec_free);
list_init(&server->remotes);
list_init(&server->locals);
list_init(&server->proxys);
diff --git a/systemd.c b/systemd.c
index 1ddbd18..8752b4e 100644
--- a/systemd.c
+++ b/systemd.c
@@ -36,10 +36,7 @@ systemd_service_object_path(struct cfg *cfg, const char *service)
char *d;
const char *s;
- if (empty_str(service)) {
- error("invalid arguments");
- return NULL;
- }
+ assert_return(cfg && service && !empty_str(service), NULL);
r = zmalloc(strlen(SYSTEMD_DBUS_PATH_PREFIX) + strlen(service) * 3 + 1);
if (!r)
@@ -68,8 +65,8 @@ systemd_service_object_path(struct cfg *cfg, const char *service)
void
systemd_delete(struct cfg *cfg)
{
- if (!cfg->sd_bus)
- return;
+ assert_return(cfg);
+ assert_return_silent(cfg->sd_bus);
sd_bus_unref(cfg->sd_bus);
cfg->sd_bus = NULL;
@@ -80,6 +77,8 @@ get_bus(struct cfg *cfg)
{
int r;
+ assert_return(cfg, NULL);
+
if (cfg->sd_bus_failed)
return NULL;
@@ -112,11 +111,10 @@ systemd_service_running(struct cfg *cfg, struct server *server)
sd_bus *bus = get_bus(cfg);
sd_bus_error error = SD_BUS_ERROR_NULL;
char *status = NULL;
- int r;
bool running = false;
+ int r;
- if (!bus || !server->systemd_service || !server->systemd_obj)
- return false;
+ assert_return(cfg && server && bus && server->systemd_service && server->systemd_obj, false);
r = sd_bus_get_property_string(bus,
SYSTEMD_DBUS_SERVICE,
@@ -155,8 +153,7 @@ systemd_service_action(struct cfg *cfg, struct server *server, const char *actio
bool performed = false;
int r;
- if (!bus || !server->systemd_service || !server->systemd_obj || !action)
- return false;
+ assert_return(cfg && server && bus && server->systemd_service && server->systemd_obj && action, false);
r = sd_bus_call_method(bus,
SYSTEMD_DBUS_SERVICE,
@@ -201,6 +198,8 @@ out:
bool
systemd_service_stop(struct cfg *cfg, struct server *server)
{
+ assert_return(cfg && server, false);
+
return systemd_service_action(cfg, server, "Stop");
}
@@ -216,6 +215,8 @@ systemd_service_stop(struct cfg *cfg, struct server *server)
bool
systemd_service_start(struct cfg *cfg, struct server *server)
{
+ assert_return(cfg && server, false);
+
return systemd_service_action(cfg, server, "Start");
}
diff --git a/uring.c b/uring.c
index c38c028..f08ba9e 100644
--- a/uring.c
+++ b/uring.c
@@ -32,8 +32,7 @@ get_sqe(struct cfg *cfg, struct uring_task *task)
{
struct io_uring_sqe *sqe;
- if (!cfg || !task)
- die("invalid parameters");
+ assert_die(cfg && task, "invalid arguments");
sqe = io_uring_get_sqe(&cfg->uev->uring);
if (!sqe) {
@@ -54,6 +53,8 @@ uring_task_refdump(struct uring_task *task)
char buf[4096];
struct uring_task *tmp;
+ assert_return(task);
+
buf[0] = '\0';
for (tmp = task; tmp; tmp = tmp->parent) {
size_t prefix;
@@ -87,14 +88,11 @@ uring_task_refdump(struct uring_task *task)
void
uring_task_destroy(struct cfg *cfg, struct uring_task *task)
{
+ assert_return(cfg && task);
+
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
- if (!task) {
- error("called with no task");
- return;
- }
-
if (task->fd >= 0) {
struct io_uring_sqe *sqe;
@@ -110,7 +108,9 @@ uring_task_destroy(struct cfg *cfg, struct uring_task *task)
void
uring_task_put(struct cfg *cfg, struct uring_task *task)
{
- struct uring_task *parent = task->parent;
+ struct uring_task *parent;
+
+ assert_return(cfg && task);
debug(DBG_REF, "task %s (%p), refcount %u",
task->name, task, task->refcount);
@@ -129,20 +129,21 @@ uring_task_put(struct cfg *cfg, struct uring_task *task)
return;
}
- if (parent)
- debug(DBG_REF, "putting parent %s (%p)",
- task->parent->name, task->parent);
-
+ parent = task->parent;
if (task->free)
task->free(task);
- if (parent)
+ if (parent) {
+ debug(DBG_REF, "putting parent %s (%p)", parent->name, parent);
uring_task_put(cfg, parent);
+ }
}
void
uring_task_get(struct cfg *cfg, struct uring_task *task)
{
+ assert_return(cfg && task);
+
debug(DBG_REF, "task %s (%p), refcount %u",
task->name, task, task->refcount);
@@ -155,25 +156,27 @@ uring_task_get(struct cfg *cfg, struct uring_task *task)
void
uring_task_set_buf(struct uring_task *task, struct uring_task_buf *tbuf)
{
+ assert_return(task && tbuf);
+
debug(DBG_UR, "task %s (%p), buf %p, refcount %u",
task->name, task, tbuf, task->refcount);
- if (tbuf) {
- /* iov_len and msg_namelen are set at send/receive time */
- tbuf->iov.iov_base = tbuf->buf;
- tbuf->msg.msg_name = &task->saddr.storage;
- tbuf->msg.msg_iov = &tbuf->iov;
- tbuf->msg.msg_iovlen = 1;
- tbuf->msg.msg_control = NULL;
- tbuf->msg.msg_controllen = 0;
- tbuf->msg.msg_flags = 0;
- }
+ /* iov_len and msg_namelen are set at send/receive time */
+ tbuf->iov.iov_base = tbuf->buf;
+ tbuf->msg.msg_name = &task->saddr.storage;
+ tbuf->msg.msg_iov = &tbuf->iov;
+ tbuf->msg.msg_iovlen = 1;
+ tbuf->msg.msg_control = NULL;
+ tbuf->msg.msg_controllen = 0;
+ tbuf->msg.msg_flags = 0;
task->tbuf = tbuf;
}
void
uring_task_set_fd(struct uring_task *task, int fd)
{
+ assert_return(task);
+
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, fd, task->refcount);
@@ -183,6 +186,8 @@ uring_task_set_fd(struct uring_task *task, int fd)
void
uring_task_close_fd(struct cfg *cfg, struct uring_task *task)
{
+ assert_return(cfg && task);
+
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -196,28 +201,23 @@ uring_task_close_fd(struct cfg *cfg, struct uring_task *task)
struct uring_task *
uring_parent(struct cfg *cfg)
{
- if (!cfg)
- die("called with null cfg");
-
- if (!cfg->uev)
- die("called with uninitialized uring");
+ assert_die(cfg && cfg->uev, "invalid arguments");
return &cfg->uev->task;
}
void
-uring_task_init(struct uring_task *task, const char *name,
+uring_task_init(struct cfg *cfg, struct uring_task *task, const char *name,
struct uring_task *parent, void (*free)(struct uring_task *))
{
static bool first = true;
+ assert_die(cfg && task && !empty_str(name) && free, "invalid arguments");
+
if (first)
first = false;
- else if (!parent)
- die("called without a parent");
-
- if (!free)
- die("called without destructor");
+ else
+ assert_die(parent, "called without a parent task");
task->refcount = 1;
task->fd = -1;
@@ -232,7 +232,7 @@ uring_task_init(struct uring_task *task, const char *name,
"getting parent %s (%p), refcount %u",
task->name, task, task->refcount,
task->parent->name, task->parent, task->parent->refcount);
- uring_task_get(NULL, task->parent);
+ uring_task_get(cfg, task->parent);
}
}
@@ -241,14 +241,11 @@ uring_close(struct cfg *cfg, struct uring_task *task, int fd)
{
struct io_uring_sqe *sqe;
+ assert_return(cfg && task && fd >= 0);
+
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
- if (!task || fd < 0) {
- error("invalid parameters (task: %p (%s), fd: %i)", task, task->name, fd);
- return;
- }
-
sqe = get_sqe(cfg, task);
io_uring_prep_close(sqe, fd);
io_uring_sqe_set_data(sqe, (void *)((uintptr_t)task | CQE_TYPE_CLOSE));
@@ -259,8 +256,7 @@ uring_tbuf_write_cb(struct cfg *cfg, struct uring_task *task, int res)
{
int r;
- if (!task || !task->tbuf || !task->final_cb)
- die("missing parameters");
+ assert_return(cfg && task && task->tbuf && task->final_cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -289,10 +285,7 @@ finished:
void
uring_tbuf_write(struct cfg *cfg, struct uring_task *task, utask_cb_t final_cb)
{
- if (!task || task->fd < 0 || !task->tbuf || task->tbuf->len < 0) {
- error("invalid parameters");
- return;
- }
+ assert_return(cfg && task && task->fd >= 0 && task->tbuf && task->tbuf->len > 0);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -307,10 +300,7 @@ uring_write(struct cfg *cfg, struct uring_task *task, void *buf, size_t len, uta
{
struct io_uring_sqe *sqe;
- if (task->fd < 0) {
- error("no fd set");
- return;
- }
+ assert_return(cfg && task && buf && len > 0 && cb && task->fd >= 0);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -326,10 +316,7 @@ uring_tbuf_read_until_cb(struct cfg *cfg, struct uring_task *task, int res)
{
int r;
- if (!task || !task->tbuf || !task->final_cb || !task->is_complete_cb) {
- error("invalid parameters");
- return;
- }
+ assert_return(cfg && task && task->tbuf && task->final_cb && task->is_complete_cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -368,10 +355,7 @@ void
uring_tbuf_read_until(struct cfg *cfg, struct uring_task *task,
rutask_cb_t is_complete_cb, utask_cb_t final_cb)
{
- if (!task || task->fd < 0 || !task->tbuf || !is_complete_cb || !final_cb) {
- error("%s: invalid parameters", __func__);
- return;
- }
+ assert_return(cfg && task && task->fd >= 0 && task->tbuf && is_complete_cb && final_cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -386,6 +370,7 @@ uring_tbuf_read_until(struct cfg *cfg, struct uring_task *task,
static int
uring_tbuf_eof(struct cfg *cfg, struct uring_task *task, int res)
{
+ assert_return(cfg && task && task->tbuf, -EINVAL);
assert_task_alive_or(DBG_UR, task, return -EINTR);
if (task->tbuf->len + 1 >= sizeof(task->tbuf->buf))
@@ -403,12 +388,16 @@ void
uring_tbuf_read_until_eof(struct cfg *cfg, struct uring_task *task,
utask_cb_t final_cb)
{
+ assert_return(cfg && task && task->tbuf && final_cb);
+
uring_tbuf_read_until(cfg, task, uring_tbuf_eof, final_cb);
}
static int
uring_tbuf_have_data(struct cfg *cfg, struct uring_task *task, int res)
{
+ assert_return(cfg && task, -EINVAL);
+
if (res < 0)
return res;
else
@@ -418,6 +407,8 @@ uring_tbuf_have_data(struct cfg *cfg, struct uring_task *task, int res)
void
uring_tbuf_read(struct cfg *cfg, struct uring_task *task, utask_cb_t final_cb)
{
+ assert_return(cfg && task && final_cb);
+
uring_tbuf_read_until(cfg, task, uring_tbuf_have_data, final_cb);
}
@@ -426,10 +417,7 @@ uring_read_offset(struct cfg *cfg, struct uring_task *task, void *buf, size_t le
{
struct io_uring_sqe *sqe;
- if (task->fd < 0) {
- error("uring_read called with no fd set");
- return;
- }
+ assert_return(cfg && task && buf && len > 0 && task->fd >= 0);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -445,6 +433,8 @@ uring_openat(struct cfg *cfg, struct uring_task *task, const char *path, utask_c
{
struct io_uring_sqe *sqe;
+ assert_return(cfg && task && !empty_str(path) && cb);
+
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -459,10 +449,7 @@ uring_tbuf_recvmsg(struct cfg *cfg, struct uring_task *task, utask_cb_t cb)
{
struct io_uring_sqe *sqe;
- if (!task->tbuf) {
- error("called with no tbuf set");
- return;
- }
+ assert_return(cfg && task && task->fd >= 0 && task->tbuf && cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -482,10 +469,7 @@ uring_tbuf_sendmsg(struct cfg *cfg, struct uring_task *task, utask_cb_t cb)
{
struct io_uring_sqe *sqe;
- if (!task->tbuf) {
- error("%s: called with no tbuf set", __func__);
- return;
- }
+ assert_return(cfg && task && task->fd >= 0 && task->tbuf && cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -504,10 +488,7 @@ uring_connect(struct cfg *cfg, struct uring_task *task, struct saddr *saddr, uta
{
struct io_uring_sqe *sqe;
- if (task->fd < 0) {
- error("no fd set");
- return;
- }
+ assert_return(cfg && task && task->fd >= 0 && saddr && cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -523,10 +504,7 @@ uring_accept(struct cfg *cfg, struct uring_task *task, struct saddr *saddr, utas
{
struct io_uring_sqe *sqe;
- if (task->fd < 0) {
- error("no fd set");
- return;
- }
+ assert_return(cfg && task && task->fd >= 0 && saddr && cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -543,10 +521,7 @@ uring_poll(struct cfg *cfg, struct uring_task *task, short poll_mask, utask_cb_t
{
struct io_uring_sqe *sqe;
- if (task->fd < 0) {
- error("uring_poll called with no fd set");
- return;
- }
+ assert_return(cfg && task && task->fd >= 0 && poll_mask && cb);
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -562,6 +537,8 @@ uring_poll_cancel(struct cfg *cfg, struct uring_task *task)
{
struct io_uring_sqe *sqe;
+ assert_return(cfg && task);
+
if (task->fd < 0) {
/* not an error, no need to print error msg */
return;
@@ -581,6 +558,8 @@ uring_free(struct uring_task *task)
{
struct uring_ev *uev = container_of(task, struct uring_ev, task);
+ assert_return(task);
+
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -592,14 +571,19 @@ uring_free(struct uring_task *task)
void
uring_refdump(struct uring_ev *uev)
{
+ assert_return(uev);
+
uring_task_refdump(&uev->task);
}
void
uring_delete(struct cfg *cfg)
{
- struct uring_task *task = &cfg->uev->task;
+ struct uring_task *task;
+
+ assert_return(cfg && cfg->uev);
+ task = &cfg->uev->task;
debug(DBG_UR, "task %s (%p), fd %i, refcount %u",
task->name, task, task->fd, task->refcount);
@@ -611,6 +595,8 @@ uring_init(struct cfg *cfg)
{
struct uring_ev *uev;
+ assert_return(cfg);
+
uev = zmalloc(sizeof(*uev));
if (!uev)
die("malloc: %m");
@@ -621,7 +607,7 @@ uring_init(struct cfg *cfg)
debug(DBG_UR, "uring initialized, features: 0x%08x",
uev->uring_params.features);
- uring_task_init(&uev->task, "uev", &cfg->task, uring_free);
+ uring_task_init(cfg, &uev->task, "uev", &cfg->task, uring_free);
cfg->uev = uev;
uev->cfg = cfg;
}
@@ -630,6 +616,8 @@ static inline void
uring_print_cqe(struct cfg *cfg, const char *type, struct uring_task *task,
struct io_uring_cqe *cqe)
{
+ assert_return(cfg && !empty_str(type) && task && cqe);
+
debug(DBG_UR, "got CQE "
"(type: %s, res: %i (%s), task: %s (%p), fd: %i, cb: %p)",
type,
@@ -644,6 +632,8 @@ uring_print_cqe(struct cfg *cfg, const char *type, struct uring_task *task,
void
uring_event_loop(struct cfg *cfg)
{
+ assert_return(cfg);
+
while (true) {
struct io_uring_cqe *cqe;
unsigned nr, head;
diff --git a/uring.h b/uring.h
index 35cdec4..dbf7faf 100644
--- a/uring.h
+++ b/uring.h
@@ -20,7 +20,7 @@ void uring_task_close_fd(struct cfg *cfg, struct uring_task *task);
struct uring_task *uring_parent(struct cfg *cfg);
-void uring_task_init(struct uring_task *task, const char *name,
+void uring_task_init(struct cfg *cfg, struct uring_task *task, const char *name,
struct uring_task *parent,
void (*free)(struct uring_task *));
diff --git a/utils.c b/utils.c
index fc1b81a..ff18fb1 100644
--- a/utils.c
+++ b/utils.c
@@ -34,11 +34,13 @@ struct allocation {
static void
add_allocation(const char *allocfn, const char *callerfn, int line, void *ptr, size_t size)
{
- struct allocation *a = malloc(sizeof(*a));
+ struct allocation *a;
- debug(DBG_MALLOC, "called from %s:%i - %s(%zu) = %p",
- callerfn, line, allocfn, size, ptr);
+ assert_die(!empty_str(allocfn) && !empty_str(callerfn) && line > 0 && ptr && size > 0, "invalid arguments");
+ a = malloc(sizeof(*a));
+ if (!a)
+ die("malloc: %m");
a->allocfn = allocfn;
a->callerfn = callerfn;
a->line = line;
@@ -47,6 +49,8 @@ add_allocation(const char *allocfn, const char *callerfn, int line, void *ptr, s
list_add(&a->list, &malloc_list);
total_malloc_count++;
malloc_count++;
+ debug(DBG_MALLOC, "called from %s:%i - %s(%zu) = %p (%p)",
+ callerfn, line, allocfn, size, ptr, a);
}
void *
@@ -54,6 +58,8 @@ __zmalloc(const char *fn, int line, size_t size)
{
void *ptr;
+ assert_die(!empty_str(fn) && line > 0 && size > 0, "invalid arguments");
+
ptr = calloc(1, size);
if (ptr)
add_allocation("zmalloc", fn, line, ptr, size);
@@ -65,6 +71,8 @@ __xstrdup(const char *fn, int line, const char *s)
{
char *ptr;
+ assert_die(!empty_str(fn) && line > 0 && !empty_str(s), "invalid arguments");
+
ptr = strdup(s);
if (ptr)
add_allocation("xstrdup", fn, line, ptr, strlen(s) + 1);
@@ -76,6 +84,8 @@ __xstrndup(const char *fn, int line, const char *s, size_t n)
{
char *ptr;
+ assert_die(!empty_str(fn) && line > 0 && !empty_str(s) && n > 0, "invalid arguments");
+
ptr = strndup(s, n);
if (ptr)
add_allocation("xstrndup", fn, line, ptr, n);
@@ -88,6 +98,8 @@ __xfree(const char *fn, int line, void *ptr)
struct allocation *a, *tmp;
unsigned delete_count = 0;
+ assert_die(!empty_str(fn) && line > 0, "invalid arguments");
+
if (!ptr)
return;
free(ptr);
@@ -161,8 +173,7 @@ socket_set_low_latency(struct cfg *cfg, int sfd)
{
int option;
- if (sfd <= 0)
- return;
+ assert_return(cfg && sfd >= 0);
/* FIXME: could make this configurable */
option = true;
@@ -183,10 +194,11 @@ socket_set_low_latency(struct cfg *cfg, int sfd)
void
connection_set_local(struct cfg *cfg, struct connection *conn, int fd)
{
+ assert_return(cfg && conn && fd >= 0);
+
conn->local.addrlen = sizeof(conn->local.storage);
- if (fd < 0 || getsockname(fd,
- (struct sockaddr *)&conn->local.storage,
- &conn->local.addrlen) < 0)
+ if (getsockname(fd, (struct sockaddr *)&conn->local.storage,
+ &conn->local.addrlen) < 0)
sprintf(conn->local.addrstr, "<unknown>");
else
saddr_set_addrstr(&conn->local);
@@ -195,6 +207,8 @@ connection_set_local(struct cfg *cfg, struct connection *conn, int fd)
void
connection_set_remote(struct cfg *cfg, struct connection *conn, struct saddr *remote)
{
+ assert_return(cfg && conn && remote);
+
conn->remote = *remote;
saddr_set_addrstr(&conn->remote);
}
@@ -204,8 +218,11 @@ static void connect_next(struct cfg *cfg, struct uring_task *task, struct connec
static void
connect_cb(struct cfg *cfg, struct uring_task *task, int res)
{
- struct connection *conn = task->priv;
+ struct connection *conn;
+
+ assert_return(cfg && task && task->priv);
+ conn = task->priv;
if (res < 0) {
debug(DBG_UR, "%s: connection to %s failed",
task->name, conn->remote.addrstr);
@@ -229,6 +246,7 @@ connect_next(struct cfg *cfg, struct uring_task *task, struct connection *conn)
int sfd;
unsigned i;
+ assert_return(cfg && task && conn && conn->callback);
again:
assert_task_alive_or(DBG_UR, task, goto out);
@@ -275,10 +293,7 @@ connect_any(struct cfg *cfg, struct uring_task *task,
struct list_head *addrs, struct connection *conn,
void (*callback)(struct cfg *, struct connection *, bool res))
{
- if (!cfg || !task || !addrs || !conn || !callback) {
- error("invalid arguments");
- return;
- }
+ assert_return(cfg && task && addrs && conn && callback);
conn->next_addr = 0;
conn->addrs = addrs;
@@ -289,6 +304,8 @@ connect_any(struct cfg *cfg, struct uring_task *task,
uint16_t
saddr_port(struct saddr *saddr)
{
+ assert_return(saddr, 0);
+
switch (saddr->storage.ss_family) {
case AF_INET:
return ntohs(saddr->in4.sin_port);
@@ -302,6 +319,8 @@ saddr_port(struct saddr *saddr)
char *
saddr_addr(struct saddr *saddr, char *buf, size_t len)
{
+ assert_return(saddr && buf && len > 0, NULL);
+
switch (saddr->storage.ss_family) {
case AF_INET:
if (inet_ntop(saddr->in4.sin_family, &saddr->in4.sin_addr, buf, len))
@@ -322,6 +341,8 @@ saddr_addr(struct saddr *saddr, char *buf, size_t len)
void
saddr_set_ipv4(struct saddr *saddr, in_addr_t ip, in_port_t port)
{
+ assert_return(saddr);
+
memset(&saddr->in4, 0, sizeof(saddr->in4));
saddr->in4.sin_family = AF_INET;
saddr->in4.sin_port = port;
@@ -333,6 +354,8 @@ saddr_set_ipv4(struct saddr *saddr, in_addr_t ip, in_port_t port)
void
saddr_set_ipv6(struct saddr *saddr, const struct in6_addr *ip, in_port_t port)
{
+ assert_return(saddr && ip);
+
memset(&saddr->in6, 0, sizeof(saddr->in6));
saddr->in6.sin6_family = AF_INET6;
saddr->in6.sin6_port = port;
@@ -345,6 +368,8 @@ saddr_set_ipv6(struct saddr *saddr, const struct in6_addr *ip, in_port_t port)
void
saddr_set_addrstr(struct saddr *saddr)
{
+ assert_return(saddr);
+
char abuf[ADDRSTRLEN];
switch (saddr->storage.ss_family) {
@@ -372,8 +397,7 @@ strtou16_strict(const char *str, uint16_t *result)
char *end;
long val;
- if (!str)
- return -EINVAL;
+ assert_return(!empty_str(str) && result, -EINVAL);
errno = 0;
val = strtol(str, &end, 10);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 06:07:07 +0000