chiark / gitweb /
implement proper binding on ports
authorLennart Poettering <lennart@poettering.net>
Sat, 23 Jan 2010 21:56:47 +0000 (22:56 +0100)
committerLennart Poettering <lennart@poettering.net>
Sat, 23 Jan 2010 21:56:47 +0000 (22:56 +0100)
job.c
main.c
manager.c
manager.h
name.c
name.h
socket-util.c
socket-util.h
socket.c
test1/postfix.socket
test1/syslog.socket

diff --git a/job.c b/job.c
index 0ae1a76..7accf72 100644 (file)
--- a/job.c
+++ b/job.c
@@ -362,6 +362,8 @@ int job_run_and_invalidate(Job *j) {
         if (j->state != JOB_WAITING)
                 return 0;
 
+        j->state = JOB_RUNNING;
+
         switch (j->type) {
 
                 case JOB_START:
@@ -422,11 +424,12 @@ int job_run_and_invalidate(Job *j) {
                         ;
         }
 
-        if (r >= 0)
-                j->state = JOB_RUNNING;
-        else if (r == -EALREADY)
+        if (r == -EALREADY)
                 r = job_finish_and_invalidate(j, true);
-        else if (r != -EAGAIN)
+        else if (r == -EAGAIN) {
+                j->state = JOB_WAITING;
+                return -EAGAIN;
+        } else if (r < 0)
                 r = job_finish_and_invalidate(j, false);
 
         return r;
diff --git a/main.c b/main.c
index b22a639..f073c8f 100644 (file)
--- a/main.c
+++ b/main.c
@@ -42,13 +42,7 @@ int main(int argc, char *argv[]) {
         printf("- By jobs:\n");
         manager_dump_jobs(m, stdout, "\t");
 
-        if ((r = manager_add_job(m, JOB_STOP, syslog, JOB_REPLACE, false, &job)) < 0) {
-                log_error("Failed to start default milestone: %s", strerror(-r));
-                goto finish;
-        }
-
-        printf("- By jobs:\n");
-        manager_dump_jobs(m, stdout, "\t");
+        manager_run_jobs(m);
 
         retval = 0;
 
index 27b740e..7941d89 100644 (file)
--- a/manager.c
+++ b/manager.c
@@ -882,3 +882,13 @@ void manager_clear_jobs(Manager *m) {
         while ((j = hashmap_first(m->jobs)))
                 job_free(j);
 }
+
+void manager_run_jobs(Manager *m) {
+        Job *j;
+        void *state;
+        int r;
+
+        HASHMAP_FOREACH(j, m->jobs, state) {
+                r = job_run_and_invalidate(j);
+        }
+}
index e669f9f..68f0dd9 100644 (file)
--- a/manager.h
+++ b/manager.h
@@ -54,4 +54,6 @@ void manager_transaction_unlink_job(Manager *m, Job *j);
 
 void manager_clear_jobs(Manager *m);
 
+void manager_run_jobs(Manager *m);
+
 #endif
diff --git a/name.c b/name.c
index 33d7f34..b6e62e9 100644 (file)
--- a/name.c
+++ b/name.c
@@ -617,7 +617,7 @@ static void retroactively_stop_dependencies(Name *n) {
                         manager_add_job(n->meta.manager, JOB_STOP, other, JOB_REPLACE, true, NULL);
 }
 
-int name_notify(Name *n, NameActiveState os, NameActiveState ns) {
+void name_notify(Name *n, NameActiveState os, NameActiveState ns) {
         assert(n);
         assert(os < _NAME_ACTIVE_STATE_MAX);
         assert(ns < _NAME_ACTIVE_STATE_MAX);
@@ -625,7 +625,7 @@ int name_notify(Name *n, NameActiveState os, NameActiveState ns) {
         assert(!(os == NAME_INACTIVE && ns == NAME_DEACTIVATING));
 
         if (os == ns)
-                return 0;
+                return;
 
         if (n->meta.job) {
 
@@ -649,10 +649,11 @@ int name_notify(Name *n, NameActiveState os, NameActiveState ns) {
                                 case JOB_START:
                                 case JOB_VERIFY_ACTIVE:
 
-                                        if (NAME_IS_ACTIVE_OR_RELOADING(ns))
-                                                return job_finish_and_invalidate(n->meta.job, true);
-                                        else if (ns == NAME_ACTIVATING)
-                                                return 0;
+                                        if (NAME_IS_ACTIVE_OR_RELOADING(ns)) {
+                                                job_finish_and_invalidate(n->meta.job, true);
+                                                return;
+                                        } else if (ns == NAME_ACTIVATING)
+                                                return;
                                         else
                                                 job_finish_and_invalidate(n->meta.job, false);
 
@@ -661,10 +662,11 @@ int name_notify(Name *n, NameActiveState os, NameActiveState ns) {
                                 case JOB_RELOAD:
                                 case JOB_RELOAD_OR_START:
 
-                                        if (ns == NAME_ACTIVE)
-                                                return job_finish_and_invalidate(n->meta.job, true);
-                                        else if (ns == NAME_ACTIVATING || ns == NAME_ACTIVE_RELOADING)
-                                                return 0;
+                                        if (ns == NAME_ACTIVE) {
+                                                job_finish_and_invalidate(n->meta.job, true);
+                                                return;
+                                        } else if (ns == NAME_ACTIVATING || ns == NAME_ACTIVE_RELOADING)
+                                                return;
                                         else
                                                 job_finish_and_invalidate(n->meta.job, false);
 
@@ -674,10 +676,11 @@ int name_notify(Name *n, NameActiveState os, NameActiveState ns) {
                                 case JOB_RESTART:
                                 case JOB_TRY_RESTART:
 
-                                        if (ns == NAME_INACTIVE)
-                                                return job_finish_and_invalidate(n->meta.job, true);
-                                        else if (ns == NAME_DEACTIVATING)
-                                                return 0;
+                                        if (ns == NAME_INACTIVE) {
+                                                job_finish_and_invalidate(n->meta.job, true);
+                                                return;
+                                        } else if (ns == NAME_DEACTIVATING)
+                                                return;
                                         else
                                                 job_finish_and_invalidate(n->meta.job, false);
 
@@ -696,6 +699,4 @@ int name_notify(Name *n, NameActiveState os, NameActiveState ns) {
                 retroactively_start_dependencies(n);
         else if (NAME_IS_ACTIVE_OR_ACTIVATING(os) && NAME_IS_INACTIVE_OR_DEACTIVATING(ns))
                 retroactively_stop_dependencies(n);
-
-        return 0;
 }
diff --git a/name.h b/name.h
index 33baea1..8c526ba 100644 (file)
--- a/name.h
+++ b/name.h
@@ -189,6 +189,6 @@ int name_start(Name *n);
 int name_stop(Name *n);
 int name_reload(Name *n);
 
-int name_notify(Name *n, NameActiveState old, NameActiveState new);
+void name_notify(Name *n, NameActiveState os, NameActiveState ns);
 
 #endif
index 525c334..1024ecb 100644 (file)
@@ -115,13 +115,13 @@ int socket_address_parse(SocketAddress *a, const char *s) {
                                 idx = if_nametoindex(n);
                                 free(n);
 
-                                if (n == 0)
+                                if (idx == 0)
                                         return -EINVAL;
 
                                 a->sockaddr.in6.sin6_family = AF_INET6;
                                 a->sockaddr.in6.sin6_port = htons((uint16_t) u);
                                 a->sockaddr.in6.sin6_scope_id = idx;
-                                memcpy(&a->sockaddr.in6.sin6_addr, &in6addr_any, INET6_ADDRSTRLEN);
+                                a->sockaddr.in6.sin6_addr = in6addr_any;
                                 a->size = sizeof(struct sockaddr_in6);
                         }
                 } else {
@@ -135,7 +135,7 @@ int socket_address_parse(SocketAddress *a, const char *s) {
 
                         a->sockaddr.in6.sin6_family = AF_INET6;
                         a->sockaddr.in6.sin6_port = htons((uint16_t) u);
-                        memcpy(&a->sockaddr.in6.sin6_addr, &in6addr_any, INET6_ADDRSTRLEN);
+                        a->sockaddr.in6.sin6_addr = in6addr_any;
                         a->size = sizeof(struct sockaddr_in6);
                 }
         }
@@ -274,9 +274,10 @@ int socket_address_print(const SocketAddress *a, char **p) {
         }
 }
 
-int socket_address_listen(const SocketAddress *a, int backlog, SocketAddressBindIPv6Only only) {
+int socket_address_listen(const SocketAddress *a, int backlog, SocketAddressBindIPv6Only only, int *ret) {
         int r, fd;
         assert(a);
+        assert(ret);
 
         if ((r = socket_address_verify(a)) < 0)
                 return r;
@@ -304,5 +305,6 @@ int socket_address_listen(const SocketAddress *a, int backlog, SocketAddressBind
                         return -errno;
                 }
 
+        *ret = fd;
         return 0;
 }
index bea3a89..1f939ae 100644 (file)
@@ -38,6 +38,6 @@ typedef enum SocketAddressBindIPv6Only {
 int socket_address_parse(SocketAddress *a, const char *s);
 int socket_address_print(const SocketAddress *a, char **p);
 int socket_address_verify(const SocketAddress *a);
-int socket_address_listen(const SocketAddress *a, int backlog, SocketAddressBindIPv6Only only);
+int socket_address_listen(const SocketAddress *a, int backlog, SocketAddressBindIPv6Only only, int *ret);
 
 #endif
index 9b69487..ed14db5 100644 (file)
--- a/socket.c
+++ b/socket.c
@@ -1,7 +1,25 @@
 /*-*- Mode: C; c-basic-offset: 8 -*-*/
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
 #include "name.h"
 #include "socket.h"
+#include "log.h"
+
+static const NameActiveState state_table[_SOCKET_STATE_MAX] = {
+        [SOCKET_DEAD] = NAME_INACTIVE,
+        [SOCKET_START_PRE] = NAME_ACTIVATING,
+        [SOCKET_START_POST] = NAME_ACTIVATING,
+        [SOCKET_LISTENING] = NAME_ACTIVE,
+        [SOCKET_RUNNING] = NAME_ACTIVE,
+        [SOCKET_STOP_PRE] = NAME_DEACTIVATING,
+        [SOCKET_STOP_POST] = NAME_DEACTIVATING,
+        [SOCKET_MAINTAINANCE] = NAME_INACTIVE,
+};
 
 static int socket_load(Name *n) {
         Socket *s = SOCKET(n);
@@ -87,28 +105,130 @@ static void socket_dump(Name *n, FILE *f, const char *prefix) {
         }
 }
 
+static void socket_set_state(Socket *s, SocketState state) {
+        SocketState old_state;
+        assert(s);
+
+        old_state = s->state;
+        s->state = state;
+
+        name_notify(NAME(s), state_table[old_state], state_table[s->state]);
+}
+
+static void close_fds(Socket *s) {
+        SocketPort *p;
+
+        assert(s);
+
+        LIST_FOREACH(p, s->ports) {
+                if (p->fd < 0)
+                        continue;
+
+                close_nointr(p->fd);
+                p->fd = -1;
+        }
+}
+
 static int socket_start(Name *n) {
+        Socket *s = SOCKET(n);
+        SocketPort *p;
+        int r;
+
+        assert(s);
+
+        if (s->state == SOCKET_START_PRE ||
+            s->state == SOCKET_START_POST)
+                return 0;
+
+        if (s->state == SOCKET_LISTENING ||
+            s->state == SOCKET_RUNNING)
+                return -EALREADY;
+
+        if (s->state == SOCKET_STOP_PRE ||
+            s->state == SOCKET_STOP_POST)
+                return -EAGAIN;
+
+        assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTAINANCE);
+
+        LIST_FOREACH(p, s->ports) {
+
+                assert(p->fd < 0);
+
+                if (p->type == SOCKET_SOCKET) {
+
+                        if ((r = socket_address_listen(&p->address, s->backlog, s->bind_ipv6_only, &p->fd)) < 0)
+                                goto rollback;
+
+                } else {
+                        struct stat st;
+                        assert(p->type == SOCKET_FIFO);
+
+                        if (mkfifo(p->path, 0666 & ~s->exec_context.umask) < 0 && errno != EEXIST) {
+                                r = -errno;
+                                goto rollback;
+                        }
+
+                        if ((p->fd = open(p->path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) {
+                                r = -errno;
+                                goto rollback;
+                        }
+
+                        if (fstat(p->fd, &st) < 0) {
+                                r = -errno;
+                                goto rollback;
+                        }
+
+                        /* FIXME verify user, access mode */
+
+                        if (!S_ISFIFO(st.st_mode)) {
+                                r = -EEXIST;
+                                goto rollback;
+                        }
+                }
+        }
+
+        socket_set_state(s, SOCKET_LISTENING);
+
         return 0;
+
+rollback:
+        close_fds(s);
+
+        socket_set_state(s, SOCKET_MAINTAINANCE);
+
+        return r;
 }
 
 static int socket_stop(Name *n) {
+        Socket *s = SOCKET(n);
+
+        assert(s);
+
+        if (s->state == SOCKET_START_PRE ||
+            s->state == SOCKET_START_POST)
+                return -EAGAIN;
+
+        if (s->state == SOCKET_DEAD ||
+            s->state == SOCKET_MAINTAINANCE)
+                return -EALREADY;
+
+        if (s->state == SOCKET_STOP_PRE ||
+            s->state == SOCKET_STOP_POST)
+                return 0;
+
+        assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
+
+        close_fds(s);
+
+        socket_set_state(s, SOCKET_DEAD);
+
         return 0;
 }
 
 static NameActiveState socket_active_state(Name *n) {
+        assert(n);
 
-        static const NameActiveState table[_SOCKET_STATE_MAX] = {
-                [SOCKET_DEAD] = NAME_INACTIVE,
-                [SOCKET_START_PRE] = NAME_ACTIVATING,
-                [SOCKET_START_POST] = NAME_ACTIVATING,
-                [SOCKET_LISTENING] = NAME_ACTIVE,
-                [SOCKET_RUNNING] = NAME_ACTIVE,
-                [SOCKET_STOP_PRE] = NAME_DEACTIVATING,
-                [SOCKET_STOP_POST] = NAME_DEACTIVATING,
-                [SOCKET_MAINTAINANCE] = NAME_INACTIVE,
-        };
-
-        return table[SOCKET(n)->state];
+        return state_table[SOCKET(n)->state];
 }
 
 static void socket_free_hook(Name *n) {
index 81c2b07..1baae5b 100644 (file)
@@ -2,5 +2,5 @@
 Description=Postfix SMTP Socket
 
 [Socket]
-ListenStream=25
-ListenFIFO=/dev/test
+ListenStream=53333
+ListenFIFO=/tmp/systemd-fifo
index 73a5662..8d7baa5 100644 (file)
@@ -2,5 +2,5 @@
 Description=Syslog Socket
 
 [Socket]
-ListenDatagram=/dev/log
-ListenStream=eth0:4711
+ListenDatagram=/tmp/systemd-socket
+ListenStream=eth0:3456