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authorTom Gundersen <teg@jklm.no>2015-10-06 12:06:56 +0200
committerTom Gundersen <teg@jklm.no>2015-10-06 12:06:56 +0200
commite1719ef19d542c88e319e77aaf970dc36c2269f4 (patch)
tree674f2f4b65756cb993709a8c75b82c082fb68a36 /src/core
parentf0990739fc24e60facb7ef0c3e97a046bd1d9d17 (diff)
parentdf9d6993b677c05c7f502acafc5c8efa642792fe (diff)
Merge pull request #1468 from poettering/fdnames
Add support for naming fds for socket activation and more
Diffstat (limited to 'src/core')
-rw-r--r--src/core/dbus-socket.c20
-rw-r--r--src/core/execute.c81
-rw-r--r--src/core/execute.h13
-rw-r--r--src/core/load-fragment-gperf.gperf.m41
-rw-r--r--src/core/load-fragment.c48
-rw-r--r--src/core/load-fragment.h1
-rw-r--r--src/core/manager.c1
-rw-r--r--src/core/service.c189
-rw-r--r--src/core/service.h1
-rw-r--r--src/core/socket.c43
-rw-r--r--src/core/socket.h10
11 files changed, 285 insertions, 123 deletions
diff --git a/src/core/dbus-socket.c b/src/core/dbus-socket.c
index 4611ad5f86..7444649f8b 100644
--- a/src/core/dbus-socket.c
+++ b/src/core/dbus-socket.c
@@ -84,6 +84,25 @@ static int property_get_listen(
return sd_bus_message_close_container(reply);
}
+
+static int property_get_fdname(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Socket *s = SOCKET(userdata);
+
+ assert(bus);
+ assert(reply);
+ assert(s);
+
+ return sd_bus_message_append(reply, "s", socket_fdname(s));
+}
+
const sd_bus_vtable bus_socket_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("BindIPv6Only", "s", property_get_bind_ipv6_only, offsetof(Socket, bind_ipv6_only), SD_BUS_VTABLE_PROPERTY_CONST),
@@ -128,6 +147,7 @@ const sd_bus_vtable bus_socket_vtable[] = {
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Socket, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("NConnections", "u", bus_property_get_unsigned, offsetof(Socket, n_connections), 0),
SD_BUS_PROPERTY("NAccepted", "u", bus_property_get_unsigned, offsetof(Socket, n_accepted), 0),
+ SD_BUS_PROPERTY("FileDescriptorName", "s", property_get_fdname, 0, 0),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Socket, exec_command[SOCKET_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPost", offsetof(Socket, exec_command[SOCKET_EXEC_START_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPre", offsetof(Socket, exec_command[SOCKET_EXEC_STOP_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
diff --git a/src/core/execute.c b/src/core/execute.c
index 137a176c18..4664af873f 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -21,18 +21,18 @@
#include <errno.h>
#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
+#include <glob.h>
+#include <grp.h>
+#include <poll.h>
#include <signal.h>
-#include <sys/socket.h>
-#include <sys/un.h>
+#include <string.h>
+#include <sys/personality.h>
#include <sys/prctl.h>
+#include <sys/socket.h>
#include <sys/stat.h>
-#include <grp.h>
-#include <poll.h>
-#include <glob.h>
+#include <sys/un.h>
+#include <unistd.h>
#include <utmpx.h>
-#include <sys/personality.h>
#ifdef HAVE_PAM
#include <security/pam_appl.h>
@@ -50,37 +50,38 @@
#include <sys/apparmor.h>
#endif
-#include "barrier.h"
#include "sd-messages.h"
-#include "rm-rf.h"
-#include "strv.h"
-#include "macro.h"
+
+#include "af-list.h"
+#include "async.h"
+#include "barrier.h"
+#include "bus-endpoint.h"
+#include "cap-list.h"
#include "capability.h"
-#include "util.h"
-#include "log.h"
-#include "ioprio.h"
-#include "securebits.h"
-#include "namespace.h"
-#include "exit-status.h"
-#include "missing.h"
-#include "utmp-wtmp.h"
#include "def.h"
-#include "path-util.h"
#include "env-util.h"
-#include "fileio.h"
-#include "unit.h"
-#include "async.h"
-#include "selinux-util.h"
#include "errno-list.h"
-#include "af-list.h"
-#include "mkdir.h"
-#include "smack-util.h"
-#include "bus-endpoint.h"
-#include "cap-list.h"
+#include "exit-status.h"
+#include "fileio.h"
#include "formats-util.h"
+#include "ioprio.h"
+#include "log.h"
+#include "macro.h"
+#include "missing.h"
+#include "mkdir.h"
+#include "namespace.h"
+#include "path-util.h"
#include "process-util.h"
-#include "terminal-util.h"
+#include "rm-rf.h"
+#include "securebits.h"
+#include "selinux-util.h"
#include "signal-util.h"
+#include "smack-util.h"
+#include "strv.h"
+#include "terminal-util.h"
+#include "unit.h"
+#include "util.h"
+#include "utmp-wtmp.h"
#ifdef HAVE_APPARMOR
#include "apparmor-util.h"
@@ -1198,6 +1199,7 @@ static void do_idle_pipe_dance(int idle_pipe[4]) {
static int build_environment(
const ExecContext *c,
unsigned n_fds,
+ char ** fd_names,
usec_t watchdog_usec,
const char *home,
const char *username,
@@ -1211,11 +1213,13 @@ static int build_environment(
assert(c);
assert(ret);
- our_env = new0(char*, 10);
+ our_env = new0(char*, 11);
if (!our_env)
return -ENOMEM;
if (n_fds > 0) {
+ _cleanup_free_ char *joined = NULL;
+
if (asprintf(&x, "LISTEN_PID="PID_FMT, getpid()) < 0)
return -ENOMEM;
our_env[n_env++] = x;
@@ -1223,6 +1227,15 @@ static int build_environment(
if (asprintf(&x, "LISTEN_FDS=%u", n_fds) < 0)
return -ENOMEM;
our_env[n_env++] = x;
+
+ joined = strv_join(fd_names, ":");
+ if (!joined)
+ return -ENOMEM;
+
+ x = strjoin("LISTEN_FDNAMES=", joined, NULL);
+ if (!x)
+ return -ENOMEM;
+ our_env[n_env++] = x;
}
if (watchdog_usec > 0) {
@@ -1273,7 +1286,7 @@ static int build_environment(
}
our_env[n_env++] = NULL;
- assert(n_env <= 10);
+ assert(n_env <= 11);
*ret = our_env;
our_env = NULL;
@@ -1850,7 +1863,7 @@ static int exec_child(
#endif
}
- r = build_environment(context, n_fds, params->watchdog_usec, home, username, shell, &our_env);
+ r = build_environment(context, n_fds, params->fd_names, params->watchdog_usec, home, username, shell, &our_env);
if (r < 0) {
*exit_status = EXIT_MEMORY;
return r;
diff --git a/src/core/execute.h b/src/core/execute.h
index 2c93044748..f1c37116fd 100644
--- a/src/core/execute.h
+++ b/src/core/execute.h
@@ -208,19 +208,30 @@ struct ExecContext {
struct ExecParameters {
char **argv;
- int *fds; unsigned n_fds;
+
+ int *fds;
+ char **fd_names;
+ unsigned n_fds;
+
char **environment;
+
bool apply_permissions;
bool apply_chroot;
bool apply_tty_stdin;
+
bool confirm_spawn;
bool selinux_context_net;
+
CGroupMask cgroup_supported;
const char *cgroup_path;
bool cgroup_delegate;
+
const char *runtime_prefix;
+
usec_t watchdog_usec;
+
int *idle_pipe;
+
char *bus_endpoint_path;
int bus_endpoint_fd;
};
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index 2333926e7d..89e624b557 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -287,6 +287,7 @@ Socket.MessageQueueMaxMessages, config_parse_long, 0,
Socket.MessageQueueMessageSize, config_parse_long, 0, offsetof(Socket, mq_msgsize)
Socket.RemoveOnStop, config_parse_bool, 0, offsetof(Socket, remove_on_stop)
Socket.Symlinks, config_parse_unit_path_strv_printf, 0, offsetof(Socket, symlinks)
+Socket.FileDescriptorName, config_parse_fdname, 0, 0
Socket.Service, config_parse_socket_service, 0, 0
m4_ifdef(`HAVE_SMACK',
`Socket.SmackLabel, config_parse_string, 0, offsetof(Socket, smack)
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index fc2755cb92..b1d4c6b57d 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -1475,10 +1475,10 @@ int config_parse_socket_service(
void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_free_ char *p = NULL;
Socket *s = data;
- int r;
Unit *x;
- _cleanup_free_ char *p = NULL;
+ int r;
assert(filename);
assert(lvalue);
@@ -1507,6 +1507,50 @@ int config_parse_socket_service(
return 0;
}
+int config_parse_fdname(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ _cleanup_free_ char *p = NULL;
+ Socket *s = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ s->fdname = mfree(s->fdname);
+ return 0;
+ }
+
+ r = unit_name_printf(UNIT(s), rvalue, &p);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve specifiers, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ if (!fdname_is_valid(p)) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid file descriptor name, ignoring: %s", p);
+ return 0;
+ }
+
+ free(s->fdname);
+ s->fdname = p;
+ p = NULL;
+
+ return 0;
+}
+
int config_parse_service_sockets(
const char *unit,
const char *filename,
diff --git a/src/core/load-fragment.h b/src/core/load-fragment.h
index 6ee7c71bc4..8661cbfedc 100644
--- a/src/core/load-fragment.h
+++ b/src/core/load-fragment.h
@@ -107,6 +107,7 @@ int config_parse_protect_system(const char* unit, const char *filename, unsigned
int config_parse_bus_name(const char* unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_exec_utmp_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_working_directory(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_fdname(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
/* gperf prototypes */
const struct ConfigPerfItem* load_fragment_gperf_lookup(const char *key, unsigned length);
diff --git a/src/core/manager.c b/src/core/manager.c
index 9de9691a47..526d4d1cef 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -495,6 +495,7 @@ static void manager_clean_environment(Manager *m) {
"MANAGERPID",
"LISTEN_PID",
"LISTEN_FDS",
+ "LISTEN_FDNAMES",
"WATCHDOG_PID",
"WATCHDOG_USEC",
NULL);
diff --git a/src/core/service.c b/src/core/service.c
index 3bb0d913b4..8c339765a4 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -261,6 +261,7 @@ static void service_fd_store_unlink(ServiceFDStore *fs) {
sd_event_source_unref(fs->event_source);
}
+ free(fs->fdname);
safe_close(fs->fd);
free(fs);
}
@@ -334,7 +335,7 @@ static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *us
return 0;
}
-static int service_add_fd_store(Service *s, int fd) {
+static int service_add_fd_store(Service *s, int fd, const char *name) {
ServiceFDStore *fs;
int r;
@@ -361,9 +362,13 @@ static int service_add_fd_store(Service *s, int fd) {
fs->fd = fd;
fs->service = s;
+ fs->fdname = strdup(name ?: "stored");
+ if (!fs->fdname)
+ return -ENOMEM;
r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs);
if (r < 0) {
+ free(fs->fdname);
free(fs);
return r;
}
@@ -376,7 +381,7 @@ static int service_add_fd_store(Service *s, int fd) {
return 1;
}
-static int service_add_fd_store_set(Service *s, FDSet *fds) {
+static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) {
int r;
assert(s);
@@ -391,7 +396,7 @@ static int service_add_fd_store_set(Service *s, FDSet *fds) {
if (fd < 0)
break;
- r = service_add_fd_store(s, fd);
+ r = service_add_fd_store(s, fd, name);
if (r < 0)
return log_unit_error_errno(UNIT(s), r, "Couldn't add fd to fd store: %m");
if (r > 0) {
@@ -956,62 +961,79 @@ static int service_coldplug(Unit *u) {
return 0;
}
-static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
+static int service_collect_fds(Service *s, int **fds, char ***fd_names) {
+ _cleanup_strv_free_ char **rfd_names = NULL;
_cleanup_free_ int *rfds = NULL;
- unsigned rn_fds = 0;
- Iterator i;
- int r;
- Unit *u;
+ int rn_fds = 0, r;
assert(s);
assert(fds);
- assert(n_fds);
+ assert(fd_names);
- if (s->socket_fd >= 0)
- return 0;
+ if (s->socket_fd >= 0) {
- SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
- int *cfds;
- unsigned cn_fds;
- Socket *sock;
+ /* Pass the per-connection socket */
- if (u->type != UNIT_SOCKET)
- continue;
+ rfds = new(int, 1);
+ if (!rfds)
+ return -ENOMEM;
+ rfds[0] = s->socket_fd;
- sock = SOCKET(u);
+ rfd_names = strv_new("connection", NULL);
+ if (!rfd_names)
+ return -ENOMEM;
- r = socket_collect_fds(sock, &cfds, &cn_fds);
- if (r < 0)
- return r;
+ rn_fds = 1;
+ } else {
+ Iterator i;
+ Unit *u;
- if (cn_fds <= 0) {
- free(cfds);
- continue;
- }
+ /* Pass all our configured sockets for singleton services */
- if (!rfds) {
- rfds = cfds;
- rn_fds = cn_fds;
- } else {
- int *t;
+ SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
+ _cleanup_free_ int *cfds = NULL;
+ Socket *sock;
+ int cn_fds;
- t = realloc(rfds, (rn_fds + cn_fds) * sizeof(int));
- if (!t) {
- free(cfds);
- return -ENOMEM;
- }
+ if (u->type != UNIT_SOCKET)
+ continue;
+
+ sock = SOCKET(u);
+
+ cn_fds = socket_collect_fds(sock, &cfds);
+ if (cn_fds < 0)
+ return cn_fds;
+
+ if (cn_fds <= 0)
+ continue;
- memcpy(t + rn_fds, cfds, cn_fds * sizeof(int));
- rfds = t;
- rn_fds += cn_fds;
+ if (!rfds) {
+ rfds = cfds;
+ rn_fds = cn_fds;
- free(cfds);
+ cfds = NULL;
+ } else {
+ int *t;
+ t = realloc(rfds, (rn_fds + cn_fds) * sizeof(int));
+ if (!t)
+ return -ENOMEM;
+
+ memcpy(t + rn_fds, cfds, cn_fds * sizeof(int));
+
+ rfds = t;
+ rn_fds += cn_fds;
+ }
+
+ r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds);
+ if (r < 0)
+ return r;
}
}
if (s->n_fd_store > 0) {
ServiceFDStore *fs;
+ char **nl;
int *t;
t = realloc(rfds, (rn_fds + s->n_fd_store) * sizeof(int));
@@ -1019,15 +1041,32 @@ static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
return -ENOMEM;
rfds = t;
- LIST_FOREACH(fd_store, fs, s->fd_store)
- rfds[rn_fds++] = fs->fd;
+
+ nl = realloc(rfd_names, (rn_fds + s->n_fd_store + 1) * sizeof(char*));
+ if (!nl)
+ return -ENOMEM;
+
+ rfd_names = nl;
+
+ LIST_FOREACH(fd_store, fs, s->fd_store) {
+ rfds[rn_fds] = fs->fd;
+ rfd_names[rn_fds] = strdup(strempty(fs->fdname));
+ if (!rfd_names[rn_fds])
+ return -ENOMEM;
+
+ rn_fds++;
+ }
+
+ rfd_names[rn_fds] = NULL;
}
*fds = rfds;
- *n_fds = rn_fds;
+ *fd_names = rfd_names;
rfds = NULL;
- return 0;
+ rfd_names = NULL;
+
+ return rn_fds;
}
static int service_spawn(
@@ -1041,15 +1080,13 @@ static int service_spawn(
bool is_control,
pid_t *_pid) {
- pid_t pid;
- int r;
- int *fds = NULL;
- _cleanup_free_ int *fdsbuf = NULL;
- unsigned n_fds = 0, n_env = 0;
+ _cleanup_strv_free_ char **argv = NULL, **final_env = NULL, **our_env = NULL, **fd_names = NULL;
_cleanup_free_ char *bus_endpoint_path = NULL;
- _cleanup_strv_free_ char
- **argv = NULL, **final_env = NULL, **our_env = NULL;
+ _cleanup_free_ int *fds = NULL;
+ unsigned n_fds = 0, n_env = 0;
const char *path;
+ pid_t pid;
+
ExecParameters exec_params = {
.apply_permissions = apply_permissions,
.apply_chroot = apply_chroot,
@@ -1058,6 +1095,8 @@ static int service_spawn(
.selinux_context_net = s->socket_fd_selinux_context_net
};
+ int r;
+
assert(s);
assert(c);
assert(_pid);
@@ -1077,16 +1116,11 @@ static int service_spawn(
s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
- if (s->socket_fd >= 0) {
- fds = &s->socket_fd;
- n_fds = 1;
- } else {
- r = service_collect_fds(s, &fdsbuf, &n_fds);
- if (r < 0)
- goto fail;
+ r = service_collect_fds(s, &fds, &fd_names);
+ if (r < 0)
+ goto fail;
- fds = fdsbuf;
- }
+ n_fds = r;
}
if (timeout > 0) {
@@ -1124,7 +1158,7 @@ static int service_spawn(
goto fail;
}
- if (UNIT_DEREF(s->accept_socket)) {
+ if (s->socket_fd >= 0) {
union sockaddr_union sa;
socklen_t salen = sizeof(sa);
@@ -1190,6 +1224,7 @@ static int service_spawn(
exec_params.argv = argv;
exec_params.fds = fds;
+ exec_params.fd_names = fd_names;
exec_params.n_fds = n_fds;
exec_params.environment = final_env;
exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn;
@@ -2053,13 +2088,16 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
}
LIST_FOREACH(fd_store, fs, s->fd_store) {
+ _cleanup_free_ char *c = NULL;
int copy;
copy = fdset_put_dup(fds, fs->fd);
if (copy < 0)
return copy;
- unit_serialize_item_format(u, f, "fd-store-fd", "%i", copy);
+ c = cescape(fs->fdname);
+
+ unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c));
}
if (s->main_exec_status.pid > 0) {
@@ -2189,12 +2227,24 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
s->bus_endpoint_fd = fdset_remove(fds, fd);
}
} else if (streq(key, "fd-store-fd")) {
+ const char *fdv;
+ size_t pf;
int fd;
- if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
+ pf = strcspn(value, WHITESPACE);
+ fdv = strndupa(value, pf);
+
+ if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value);
else {
- r = service_add_fd_store(s, fd);
+ _cleanup_free_ char *t = NULL;
+ const char *fdn;
+
+ fdn = value + pf;
+ fdn += strspn(fdn, WHITESPACE);
+ (void) cunescape(fdn, 0, &t);
+
+ r = service_add_fd_store(s, fd, t);
if (r < 0)
log_unit_error_errno(u, r, "Failed to add fd to store: %m");
else if (r > 0)
@@ -2948,8 +2998,17 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds)
if (strv_find(tags, "WATCHDOG=1"))
service_reset_watchdog(s);
- if (strv_find(tags, "FDSTORE=1"))
- service_add_fd_store_set(s, fds);
+ if (strv_find(tags, "FDSTORE=1")) {
+ const char *name;
+
+ name = strv_find_startswith(tags, "FDNAME=");
+ if (name && !fdname_is_valid(name)) {
+ log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring.");
+ name = NULL;
+ }
+
+ service_add_fd_store_set(s, fds, name);
+ }
/* Notify clients about changed status or main pid */
if (notify_dbus)
diff --git a/src/core/service.h b/src/core/service.h
index a8d42706bd..61bb44fbcf 100644
--- a/src/core/service.h
+++ b/src/core/service.h
@@ -97,6 +97,7 @@ struct ServiceFDStore {
Service *service;
int fd;
+ char *fdname;
sd_event_source *event_source;
LIST_FIELDS(ServiceFDStore, fd_store);
diff --git a/src/core/socket.c b/src/core/socket.c
index 3250e7efc6..6300b20f3e 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -508,6 +508,7 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) {
"%sTCPCongestion: %s\n"
"%sRemoveOnStop: %s\n"
"%sWritable: %s\n"
+ "%sFDName: %s\n"
"%sSELinuxContextFromNet: %s\n",
prefix, socket_state_to_string(s->state),
prefix, socket_result_to_string(s->result),
@@ -525,6 +526,7 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) {
prefix, strna(s->tcp_congestion),
prefix, yes_no(s->remove_on_stop),
prefix, yes_no(s->writable),
+ prefix, socket_fdname(s),
prefix, yes_no(s->selinux_context_from_net));
if (s->control_pid > 0)
@@ -1028,8 +1030,6 @@ static int fifo_address_create(
fail:
mac_selinux_create_file_clear();
- safe_close(fd);
-
return r;
}
@@ -2630,49 +2630,43 @@ static int socket_dispatch_timer(sd_event_source *source, usec_t usec, void *use
return 0;
}
-int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) {
- int *rfds;
- unsigned rn_fds, k;
- int i;
+int socket_collect_fds(Socket *s, int **fds) {
+ int *rfds, k = 0, n = 0;
SocketPort *p;
assert(s);
assert(fds);
- assert(n_fds);
/* Called from the service code for requesting our fds */
- rn_fds = 0;
LIST_FOREACH(port, p, s->ports) {
if (p->fd >= 0)
- rn_fds++;
- rn_fds += p->n_auxiliary_fds;
+ n++;
+ n += p->n_auxiliary_fds;
}
- if (rn_fds <= 0) {
+ if (n <= 0) {
*fds = NULL;
- *n_fds = 0;
return 0;
}
- rfds = new(int, rn_fds);
+ rfds = new(int, n);
if (!rfds)
return -ENOMEM;
- k = 0;
LIST_FOREACH(port, p, s->ports) {
+ int i;
+
if (p->fd >= 0)
rfds[k++] = p->fd;
for (i = 0; i < p->n_auxiliary_fds; ++i)
rfds[k++] = p->auxiliary_fds[i];
}
- assert(k == rn_fds);
+ assert(k == n);
*fds = rfds;
- *n_fds = rn_fds;
-
- return 0;
+ return n;
}
static void socket_reset_failed(Unit *u) {
@@ -2768,6 +2762,19 @@ static int socket_get_timeout(Unit *u, uint64_t *timeout) {
return 1;
}
+char *socket_fdname(Socket *s) {
+ assert(s);
+
+ /* Returns the name to use for $LISTEN_NAMES. If the user
+ * didn't specify anything specifically, use the socket unit's
+ * name as fallback. */
+
+ if (s->fdname)
+ return s->fdname;
+
+ return UNIT(s)->id;
+}
+
static const char* const socket_exec_command_table[_SOCKET_EXEC_COMMAND_MAX] = {
[SOCKET_EXEC_START_PRE] = "StartPre",
[SOCKET_EXEC_START_CHOWN] = "StartChown",
diff --git a/src/core/socket.h b/src/core/socket.h
index d20dc8d81a..94cda8a90d 100644
--- a/src/core/socket.h
+++ b/src/core/socket.h
@@ -154,16 +154,22 @@ struct Socket {
char *user, *group;
bool reset_cpu_usage:1;
+
+ char *fdname;
};
/* Called from the service code when collecting fds */
-int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
+int socket_collect_fds(Socket *s, int **fds);
/* Called from the service code when a per-connection service ended */
void socket_connection_unref(Socket *s);
void socket_free_ports(Socket *s);
+int socket_instantiate_service(Socket *s);
+
+char *socket_fdname(Socket *s);
+
extern const UnitVTable socket_vtable;
const char* socket_exec_command_to_string(SocketExecCommand i) _const_;
@@ -173,5 +179,3 @@ const char* socket_result_to_string(SocketResult i) _const_;
SocketResult socket_result_from_string(const char *s) _pure_;
const char* socket_port_type_to_string(SocketPort *p) _pure_;
-
-int socket_instantiate_service(Socket *s);