/*-*- Mode: C; c-basic-offset: 8 -*-*/
+#include <linux/oom.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
-#include <linux/oom.h>
+#include <unistd.h>
+#include <fcntl.h>
-#include "name.h"
+#include "unit.h"
#include "strv.h"
#include "conf-parser.h"
#include "load-fragment.h"
void *data,
void *userdata) {
- NameDependency d = PTR_TO_UINT(data);
- Name *name = userdata;
+ UnitDependency d = PTR_TO_UINT(data);
+ Unit *u = userdata;
char *w;
size_t l;
char *state;
FOREACH_WORD(w, &l, rvalue, state) {
char *t;
int r;
- Name *other;
if (!(t = strndup(w, l)))
return -ENOMEM;
- r = manager_load_name(name->meta.manager, t, &other);
+ r = unit_add_dependency_by_name(u, d, t);
free(t);
if (r < 0)
return r;
-
- if ((r = name_add_dependency(name, d, other)) < 0)
- return r;
}
return 0;
void *data,
void *userdata) {
- Set **set = data;
- Name *name = userdata;
+ Unit *u = userdata;
char *w;
size_t l;
char *state;
FOREACH_WORD(w, &l, rvalue, state) {
char *t;
int r;
- Name *other;
+ Unit *other;
if (!(t = strndup(w, l)))
return -ENOMEM;
- other = manager_get_name(name->meta.manager, t);
+ other = manager_get_unit(u->meta.manager, t);
if (other) {
- if (other != name) {
+ if (other != u) {
- if (other->meta.load_state != NAME_STUB) {
+ if (other->meta.load_state != UNIT_STUB) {
free(t);
return -EEXIST;
}
- if ((r = name_merge(name, other)) < 0) {
+ if ((r = unit_merge(u, other)) < 0) {
free(t);
return r;
}
}
} else {
-
- if (!*set)
- if (!(*set = set_new(trivial_hash_func, trivial_compare_func))) {
- free(t);
- return -ENOMEM;
- }
-
- if ((r = set_put(*set, t)) < 0) {
+ if ((r = unit_add_name(u, t)) < 0) {
free(t);
return r;
}
-
- t = NULL;
}
free(t);
void *data,
void *userdata) {
- int *i = data, priority, r;
+ ExecContext *c = data;
+ int priority, r;
assert(filename);
assert(lvalue);
return -ERANGE;
}
- *i = priority;
+ c->nice = priority;
+ c->nice_set = false;
+
return 0;
}
void *data,
void *userdata) {
- int *i = data, oa, r;
+ ExecContext *c = data;
+ int oa, r;
assert(filename);
assert(lvalue);
return -ERANGE;
}
- *i = oa;
+ c->oom_adjust = oa;
+ c->oom_adjust_set = true;
+
return 0;
}
n[k] = NULL;
- if (!n[0] || n[0][0] != '/') {
+ if (!n[0] || !path_is_absolute(n[0])) {
log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue);
strv_free(n);
return -EINVAL;
return 0;
}
-int name_load_fragment(Name *n) {
-
- static const char* const section_table[_NAME_TYPE_MAX] = {
- [NAME_SERVICE] = "Service",
- [NAME_TIMER] = "Timer",
- [NAME_SOCKET] = "Socket",
- [NAME_MILESTONE] = "Milestone",
- [NAME_DEVICE] = "Device",
- [NAME_MOUNT] = "Mount",
- [NAME_AUTOMOUNT] = "Automount",
- [NAME_SNAPSHOT] = "Snapshot"
+int config_parse_bindtodevice(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Socket *s = data;
+ char *n;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (rvalue[0] && !streq(rvalue, "*")) {
+ if (!(n = strdup(rvalue)))
+ return -ENOMEM;
+ } else
+ n = NULL;
+
+ free(s->bind_to_device);
+ s->bind_to_device = n;
+
+ return 0;
+}
+
+int config_parse_output(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecOutput *o = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (streq(rvalue, "syslog"))
+ *o = EXEC_SYSLOG;
+ else if (streq(rvalue, "null"))
+ *o = EXEC_NULL;
+ else if (streq(rvalue, "syslog"))
+ *o = EXEC_SYSLOG;
+ else if (streq(rvalue, "kernel"))
+ *o = EXEC_KERNEL;
+ else {
+ log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+
+ return 0;
+}
+
+int config_parse_facility(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ static const char * const table[LOG_NFACILITIES] = {
+ [LOG_FAC(LOG_KERN)] = "kern",
+ [LOG_FAC(LOG_USER)] = "user",
+ [LOG_FAC(LOG_MAIL)] = "mail",
+ [LOG_FAC(LOG_DAEMON)] = "daemon",
+ [LOG_FAC(LOG_AUTH)] = "auth",
+ [LOG_FAC(LOG_SYSLOG)] = "syslog",
+ [LOG_FAC(LOG_LPR)] = "lpr",
+ [LOG_FAC(LOG_NEWS)] = "news",
+ [LOG_FAC(LOG_UUCP)] = "uucp",
+ [LOG_FAC(LOG_CRON)] = "cron",
+ [LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
+ [LOG_FAC(LOG_FTP)] = "ftp",
+ [LOG_FAC(LOG_LOCAL0)] = "local0",
+ [LOG_FAC(LOG_LOCAL1)] = "local1",
+ [LOG_FAC(LOG_LOCAL2)] = "local2",
+ [LOG_FAC(LOG_LOCAL3)] = "local3",
+ [LOG_FAC(LOG_LOCAL4)] = "local4",
+ [LOG_FAC(LOG_LOCAL5)] = "local5",
+ [LOG_FAC(LOG_LOCAL6)] = "local6",
+ [LOG_FAC(LOG_LOCAL7)] = "local7"
+ };
+
+ ExecOutput *o = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ for (i = 0; i < (int) ELEMENTSOF(table); i++)
+ if (streq(rvalue, table[i])) {
+ *o = LOG_MAKEPRI(i, LOG_PRI(*o));
+ break;
+ }
+
+ if (i >= (int) ELEMENTSOF(table)) {
+
+ /* Second try, let's see if this is a number. */
+ if (safe_atoi(rvalue, &i) >= 0 &&
+ i >= 0 &&
+ i < (int) ELEMENTSOF(table))
+ *o = LOG_MAKEPRI(i, LOG_PRI(*o));
+ else {
+ log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+ }
+
+ return 0;
+}
+
+int config_parse_level(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ static const char * const table[LOG_DEBUG+1] = {
+ [LOG_EMERG] = "emerg",
+ [LOG_ALERT] = "alert",
+ [LOG_CRIT] = "crit",
+ [LOG_ERR] = "err",
+ [LOG_WARNING] = "warning",
+ [LOG_NOTICE] = "notice",
+ [LOG_INFO] = "info",
+ [LOG_DEBUG] = "debug"
+ };
+
+ ExecOutput *o = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ for (i = 0; i < (int) ELEMENTSOF(table); i++)
+ if (streq(rvalue, table[i])) {
+ *o = LOG_MAKEPRI(LOG_FAC(*o), i);
+ break;
+ }
+
+ if (i >= LOG_NFACILITIES) {
+
+ /* Second try, let's see if this is a number. */
+ if (safe_atoi(rvalue, &i) >= 0 &&
+ i >= 0 &&
+ i < (int) ELEMENTSOF(table))
+ *o = LOG_MAKEPRI(LOG_FAC(*o), i);
+ else {
+ log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+ }
+
+ return 0;
+}
+
+#define FOLLOW_MAX 8
+
+static int open_follow(char **filename, FILE **_f, Set *names, char **_id) {
+ unsigned c = 0;
+ int fd, r;
+ FILE *f;
+ char *id = NULL;
+
+ assert(filename);
+ assert(*filename);
+ assert(_f);
+ assert(names);
+
+ /* This will update the filename pointer if the loaded file is
+ * reached by a symlink. The old string will be freed. */
+
+ for (;;) {
+ char *target, *k, *name;
+
+ if (c++ >= FOLLOW_MAX)
+ return -ELOOP;
+
+ path_kill_slashes(*filename);
+
+ /* Add the file name we are currently looking at to
+ * the names of this unit */
+ name = file_name_from_path(*filename);
+ if (!(id = set_get(names, name))) {
+
+ if (!(id = strdup(name)))
+ return -ENOMEM;
+
+ if ((r = set_put(names, id)) < 0) {
+ free(id);
+ return r;
+ }
+ }
+
+ /* Try to open the file name, but don't if its a symlink */
+ if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
+ break;
+
+ if (errno != ELOOP)
+ return -errno;
+
+ /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
+ if ((r = readlink_malloc(*filename, &target)) < 0)
+ return r;
+
+ k = file_in_same_dir(*filename, target);
+ free(target);
+
+ if (!k)
+ return -ENOMEM;
+
+ free(*filename);
+ *filename = k;
+ }
+
+ if (!(f = fdopen(fd, "r"))) {
+ r = -errno;
+ assert(close_nointr(fd) == 0);
+ return r;
+ }
+
+ *_f = f;
+ *_id = id;
+ return 0;
+}
+
+static int load_from_path(Unit *u, const char *path) {
+
+ static const char* const section_table[_UNIT_TYPE_MAX] = {
+ [UNIT_SERVICE] = "Service",
+ [UNIT_TIMER] = "Timer",
+ [UNIT_SOCKET] = "Socket",
+ [UNIT_TARGET] = "Target",
+ [UNIT_DEVICE] = "Device",
+ [UNIT_MOUNT] = "Mount",
+ [UNIT_AUTOMOUNT] = "Automount",
+ [UNIT_SNAPSHOT] = "Snapshot"
};
#define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
- { "Directory", config_parse_path, &(context).directory, section }, \
- { "User", config_parse_string, &(context).user, section }, \
- { "Group", config_parse_string, &(context).group, section }, \
- { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
- { "Nice", config_parse_nice, &(context).nice, section }, \
- { "OOMAdjust", config_parse_oom_adjust, &(context).oom_adjust, section }, \
- { "UMask", config_parse_umask, &(context).umask, section }, \
- { "Environment", config_parse_strv, &(context).environment, section }
+ { "Directory", config_parse_path, &(context).directory, section }, \
+ { "User", config_parse_string, &(context).user, section }, \
+ { "Group", config_parse_string, &(context).group, section }, \
+ { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
+ { "Nice", config_parse_nice, &(context), section }, \
+ { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \
+ { "UMask", config_parse_umask, &(context).umask, section }, \
+ { "Environment", config_parse_strv, &(context).environment, section }, \
+ { "Output", config_parse_output, &(context).output, section }, \
+ { "SyslogIdentifier", config_parse_string, &(context).syslog_identifier, section }, \
+ { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
+ { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }
const ConfigItem items[] = {
- { "Names", config_parse_names, &n->meta.names, "Meta" },
- { "Description", config_parse_string, &n->meta.description, "Meta" },
- { "Requires", config_parse_deps, UINT_TO_PTR(NAME_REQUIRES), "Meta" },
- { "SoftRequires", config_parse_deps, UINT_TO_PTR(NAME_SOFT_REQUIRES), "Meta" },
- { "Wants", config_parse_deps, UINT_TO_PTR(NAME_WANTS), "Meta" },
- { "Requisite", config_parse_deps, UINT_TO_PTR(NAME_REQUISITE), "Meta" },
- { "SoftRequisite", config_parse_deps, UINT_TO_PTR(NAME_SOFT_REQUISITE), "Meta" },
- { "Conflicts", config_parse_deps, UINT_TO_PTR(NAME_CONFLICTS), "Meta" },
- { "Before", config_parse_deps, UINT_TO_PTR(NAME_BEFORE), "Meta" },
- { "After", config_parse_deps, UINT_TO_PTR(NAME_AFTER), "Meta" },
-
- { "PIDFile", config_parse_path, &n->service.pid_file, "Service" },
- { "ExecStartPre", config_parse_exec, &n->service.exec_command[SERVICE_EXEC_START_PRE], "Service" },
- { "ExecStart", config_parse_exec, &n->service.exec_command[SERVICE_EXEC_START], "Service" },
- { "ExecStartPost", config_parse_exec, &n->service.exec_command[SERVICE_EXEC_START_POST], "Service" },
- { "ExecReload", config_parse_exec, &n->service.exec_command[SERVICE_EXEC_RELOAD], "Service" },
- { "ExecStop", config_parse_exec, &n->service.exec_command[SERVICE_EXEC_STOP], "Service" },
- { "ExecStopPost", config_parse_exec, &n->service.exec_command[SERVICE_EXEC_STOP_POST], "Service" },
- { "RestartSec", config_parse_usec, &n->service.restart_usec, "Service" },
- { "TimeoutSec", config_parse_usec, &n->service.timeout_usec, "Service" },
- { "Type", config_parse_service_type, &n->service, "Service" },
- { "Restart", config_parse_service_restart, &n->service, "Service" },
- EXEC_CONTEXT_CONFIG_ITEMS(n->service.exec_context, "Service"),
-
- { "ListenStream", config_parse_listen, &n->socket, "Socket" },
- { "ListenDatagram", config_parse_listen, &n->socket, "Socket" },
- { "ListenSequentialPacket", config_parse_listen, &n->socket, "Socket" },
- { "ListenFIFO", config_parse_listen, &n->socket, "Socket" },
- { "BindIPv6Only", config_parse_socket_bind, &n->socket, "Socket" },
- { "Backlog", config_parse_unsigned, &n->socket.backlog, "Socket" },
- { "ExecStartPre", config_parse_exec, &n->service.exec_command[SOCKET_EXEC_START_PRE], "Socket" },
- { "ExecStartPost", config_parse_exec, &n->service.exec_command[SOCKET_EXEC_START_POST], "Socket" },
- { "ExecStopPre", config_parse_exec, &n->service.exec_command[SOCKET_EXEC_STOP_PRE], "Socket" },
- { "ExecStopPost", config_parse_exec, &n->service.exec_command[SOCKET_EXEC_STOP_POST], "Socket" },
- EXEC_CONTEXT_CONFIG_ITEMS(n->socket.exec_context, "Socket"),
-
- EXEC_CONTEXT_CONFIG_ITEMS(n->automount.exec_context, "Automount"),
+ { "Names", config_parse_names, u, "Meta" },
+ { "Description", config_parse_string, &u->meta.description, "Meta" },
+ { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Meta" },
+ { "SoftRequires", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUIRES), "Meta" },
+ { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Meta" },
+ { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Meta" },
+ { "SoftRequisite", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUISITE), "Meta" },
+ { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Meta" },
+ { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Meta" },
+ { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Meta" },
+
+ { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
+ { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
+ { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
+ { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
+ { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
+ { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
+ { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
+ { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
+ { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
+ { "Type", config_parse_service_type, &u->service, "Service" },
+ { "Restart", config_parse_service_restart, &u->service, "Service" },
+ EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
+
+ { "ListenStream", config_parse_listen, &u->socket, "Socket" },
+ { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
+ { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
+ { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
+ { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
+ { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
+ { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
+ { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
+ { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
+ { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
+ { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
+ EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
+
+ EXEC_CONTEXT_CONFIG_ITEMS(u->automount.exec_context, "Automount"),
{ NULL, NULL, NULL, NULL }
};
#undef EXEC_CONTEXT_CONFIG_ITEMS
- char *t;
- int r;
const char *sections[3];
- Iterator i;
-
- assert(n);
- assert(n->meta.load_state == NAME_STUB);
+ char *k;
+ int r;
+ Set *symlink_names;
+ FILE *f;
+ char *filename, *id;
sections[0] = "Meta";
- sections[1] = section_table[n->meta.type];
+ sections[1] = section_table[u->meta.type];
sections[2] = NULL;
- SET_FOREACH(t, n->meta.names, i) {
+ if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
+ return -ENOMEM;
+
+ /* Instead of opening the path right away, we manually
+ * follow all symlinks and add their name to our unit
+ * name set while doing so */
+ if (!(filename = path_make_absolute(path, unit_path()))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
+ if (r == -ENOENT)
+ r = 0; /* returning 0 means: no suitable config file found */
+
+ goto finish;
+ }
+
+ /* Now, parse the file contents */
+ r = config_parse(filename, f, sections, items, u);
+ if (r < 0)
+ goto finish;
+
+ /* Let's try to add in all symlink names we found */
+ while ((k = set_steal_first(symlink_names))) {
+ if ((r = unit_add_name(u, k)) < 0)
+ goto finish;
+
+
+ if (id == k)
+ unit_choose_id(u, id);
+ free(k);
+ }
+
+
+ free(u->meta.load_path);
+ u->meta.load_path = filename;
+ filename = NULL;
+
+ r = 1; /* returning 1 means: suitable config file found and loaded */
+
+finish:
+ while ((k = set_steal_first(symlink_names)))
+ free(k);
+ set_free(symlink_names);
+ free(filename);
+
+ return r;
+}
+
+int unit_load_fragment(Unit *u) {
+ int r = 0;
+ ExecContext *c;
+
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
+
+ if (u->meta.load_path)
+ r = load_from_path(u, u->meta.load_path);
+ else {
+ Iterator i;
+ char *t;
/* Try to find a name we can load this with */
- if ((r = config_parse(t, sections, items, n)) == -ENOENT)
- continue;
+ SET_FOREACH(t, u->meta.names, i)
+ if ((r = load_from_path(u, t)) != 0)
+ return r;
+ }
- /* Yay, we succeeded! Now let's call this our identifier */
- if (r == 0)
- n->meta.id = t;
+ if (u->meta.type == UNIT_SOCKET)
+ c = &u->socket.exec_context;
+ else if (u->meta.type == UNIT_SERVICE)
+ c = &u->service.exec_context;
+ else
+ c = NULL;
- return r;
+ if (r >= 0 && c &&
+ (c->output == EXEC_KERNEL || c->output == EXEC_SYSLOG)) {
+ int k;
+
+ /* If syslog or kernel logging is requested, make sure
+ * our own logging daemon is run first. */
+
+ if ((k = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_LOGGER_SOCKET)) < 0)
+ return k;
+
+ if ((k = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_LOGGER_SOCKET)) < 0)
+ return k;
}
- return -ENOENT;
+ return r;
}