diff options
Diffstat (limited to 'src/load-fragment.c')
-rw-r--r-- | src/load-fragment.c | 2445 |
1 files changed, 0 insertions, 2445 deletions
diff --git a/src/load-fragment.c b/src/load-fragment.c deleted file mode 100644 index 637c82b427..0000000000 --- a/src/load-fragment.c +++ /dev/null @@ -1,2445 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <linux/oom.h> -#include <assert.h> -#include <errno.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> -#include <sched.h> -#include <sys/prctl.h> -#include <sys/mount.h> -#include <linux/fs.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/resource.h> - -#include "unit.h" -#include "strv.h" -#include "conf-parser.h" -#include "load-fragment.h" -#include "log.h" -#include "ioprio.h" -#include "securebits.h" -#include "missing.h" -#include "unit-name.h" -#include "bus-errors.h" -#include "utf8.h" - -#ifndef HAVE_SYSV_COMPAT -int config_parse_warn_compat( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - log_debug("[%s:%u] Support for option %s= has been disabled at compile time and is ignored", filename, line, lvalue); - return 0; -} -#endif - -int config_parse_unit_deps( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - UnitDependency d = ltype; - Unit *u = userdata; - char *w; - size_t l; - char *state; - - assert(filename); - assert(lvalue); - assert(rvalue); - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - char *t, *k; - int r; - - t = strndup(w, l); - if (!t) - return -ENOMEM; - - k = unit_name_printf(u, t); - free(t); - if (!k) - return -ENOMEM; - - r = unit_add_dependency_by_name(u, d, k, NULL, true); - if (r < 0) - log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", filename, line, k, strerror(-r)); - - free(k); - } - - return 0; -} - -int config_parse_unit_names( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Unit *u = userdata; - char *w; - size_t l; - char *state; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - char *t, *k; - int r; - - t = strndup(w, l); - if (!t) - return -ENOMEM; - - k = unit_name_printf(u, t); - free(t); - if (!k) - return -ENOMEM; - - r = unit_merge_by_name(u, k); - if (r < 0) - log_error("Failed to add name %s, ignoring: %s", k, strerror(-r)); - - free(k); - } - - return 0; -} - -int config_parse_unit_string_printf( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Unit *u = userdata; - char *k; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(u); - - k = unit_full_printf(u, rvalue); - if (!k) - return -ENOMEM; - - r = config_parse_string(filename, line, section, lvalue, ltype, k, data, userdata); - free (k); - - return r; -} - -int config_parse_unit_strv_printf( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Unit *u = userdata; - char *k; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(u); - - k = unit_full_printf(u, rvalue); - if (!k) - return -ENOMEM; - - r = config_parse_strv(filename, line, section, lvalue, ltype, k, data, userdata); - free(k); - - return r; -} - -int config_parse_unit_path_printf( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Unit *u = userdata; - char *k; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(u); - - k = unit_full_printf(u, rvalue); - if (!k) - return -ENOMEM; - - r = config_parse_path(filename, line, section, lvalue, ltype, k, data, userdata); - free(k); - - return r; -} - -int config_parse_socket_listen( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - SocketPort *p, *tail; - Socket *s; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - s = SOCKET(data); - - p = new0(SocketPort, 1); - if (!p) - return -ENOMEM; - - if (streq(lvalue, "ListenFIFO")) { - p->type = SOCKET_FIFO; - - if (!(p->path = unit_full_printf(UNIT(s), rvalue))) { - free(p); - return -ENOMEM; - } - - path_kill_slashes(p->path); - - } else if (streq(lvalue, "ListenSpecial")) { - p->type = SOCKET_SPECIAL; - - if (!(p->path = unit_full_printf(UNIT(s), rvalue))) { - free(p); - return -ENOMEM; - } - - path_kill_slashes(p->path); - - } else if (streq(lvalue, "ListenMessageQueue")) { - - p->type = SOCKET_MQUEUE; - - if (!(p->path = unit_full_printf(UNIT(s), rvalue))) { - free(p); - return -ENOMEM; - } - - path_kill_slashes(p->path); - - } else if (streq(lvalue, "ListenNetlink")) { - char *k; - int r; - - p->type = SOCKET_SOCKET; - k = unit_full_printf(UNIT(s), rvalue); - r = socket_address_parse_netlink(&p->address, k); - free(k); - - if (r < 0) { - log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue); - free(p); - return 0; - } - - } else { - char *k; - int r; - - p->type = SOCKET_SOCKET; - k = unit_full_printf(UNIT(s), rvalue); - r = socket_address_parse(&p->address, k); - free(k); - - if (r < 0) { - log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue); - free(p); - return 0; - } - - if (streq(lvalue, "ListenStream")) - p->address.type = SOCK_STREAM; - else if (streq(lvalue, "ListenDatagram")) - p->address.type = SOCK_DGRAM; - else { - assert(streq(lvalue, "ListenSequentialPacket")); - p->address.type = SOCK_SEQPACKET; - } - - if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) { - log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue); - free(p); - return 0; - } - } - - p->fd = -1; - - if (s->ports) { - LIST_FIND_TAIL(SocketPort, port, s->ports, tail); - LIST_INSERT_AFTER(SocketPort, port, s->ports, tail, p); - } else - LIST_PREPEND(SocketPort, port, s->ports, p); - - return 0; -} - -int config_parse_socket_bind( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Socket *s; - SocketAddressBindIPv6Only b; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - s = SOCKET(data); - - if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) { - int r; - - if ((r = parse_boolean(rvalue)) < 0) { - log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue); - return 0; - } - - s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH; - } else - s->bind_ipv6_only = b; - - return 0; -} - -int config_parse_exec_nice( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - int priority; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (safe_atoi(rvalue, &priority) < 0) { - log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue); - return 0; - } - - if (priority < PRIO_MIN || priority >= PRIO_MAX) { - log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue); - return 0; - } - - c->nice = priority; - c->nice_set = true; - - return 0; -} - -int config_parse_exec_oom_score_adjust( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - int oa; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (safe_atoi(rvalue, &oa) < 0) { - log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) { - log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue); - return 0; - } - - c->oom_score_adjust = oa; - c->oom_score_adjust_set = true; - - return 0; -} - -int config_parse_exec( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecCommand **e = data, *nce; - char *path, **n; - unsigned k; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(e); - - /* We accept an absolute path as first argument, or - * alternatively an absolute prefixed with @ to allow - * overriding of argv[0]. */ - - e += ltype; - - for (;;) { - char *w; - size_t l; - char *state; - bool honour_argv0 = false, ignore = false; - - path = NULL; - nce = NULL; - n = NULL; - - rvalue += strspn(rvalue, WHITESPACE); - - if (rvalue[0] == 0) - break; - - if (rvalue[0] == '-') { - ignore = true; - rvalue ++; - } - - if (rvalue[0] == '@') { - honour_argv0 = true; - rvalue ++; - } - - if (*rvalue != '/') { - log_error("[%s:%u] Invalid executable path in command line, ignoring: %s", filename, line, rvalue); - return 0; - } - - k = 0; - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - if (strncmp(w, ";", MAX(l, 1U)) == 0) - break; - - k++; - } - - n = new(char*, k + !honour_argv0); - if (!n) - return -ENOMEM; - - k = 0; - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - if (strncmp(w, ";", MAX(l, 1U)) == 0) - break; - - if (honour_argv0 && w == rvalue) { - assert(!path); - - path = strndup(w, l); - if (!path) { - r = -ENOMEM; - goto fail; - } - - if (!utf8_is_valid(path)) { - log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue); - r = 0; - goto fail; - } - - } else { - char *c; - - c = n[k++] = cunescape_length(w, l); - if (!c) { - r = -ENOMEM; - goto fail; - } - - if (!utf8_is_valid(c)) { - log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue); - r = 0; - goto fail; - } - } - } - - n[k] = NULL; - - if (!n[0]) { - log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue); - r = 0; - goto fail; - } - - if (!path) { - path = strdup(n[0]); - if (!path) { - r = -ENOMEM; - goto fail; - } - } - - assert(path_is_absolute(path)); - - nce = new0(ExecCommand, 1); - if (!nce) { - r = -ENOMEM; - goto fail; - } - - nce->argv = n; - nce->path = path; - nce->ignore = ignore; - - path_kill_slashes(nce->path); - - exec_command_append_list(e, nce); - - rvalue = state; - } - - return 0; - -fail: - n[k] = NULL; - strv_free(n); - free(path); - free(nce); - - return r; -} - -DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type"); -DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier"); - -int config_parse_socket_bindtodevice( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - 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; -} - -DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier"); -DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier"); - -int config_parse_facility( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - - int *o = data, x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((x = log_facility_unshifted_from_string(rvalue)) < 0) { - log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue); - return 0; - } - - *o = (x << 3) | LOG_PRI(*o); - - return 0; -} - -int config_parse_level( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - - int *o = data, x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((x = log_level_from_string(rvalue)) < 0) { - log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue); - return 0; - } - - *o = (*o & LOG_FACMASK) | x; - return 0; -} - -int config_parse_exec_io_class( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - int x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((x = ioprio_class_from_string(rvalue)) < 0) { - log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue); - return 0; - } - - c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio)); - c->ioprio_set = true; - - return 0; -} - -int config_parse_exec_io_priority( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - int i; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) { - log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue); - return 0; - } - - c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i); - c->ioprio_set = true; - - return 0; -} - -int config_parse_exec_cpu_sched_policy( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - - ExecContext *c = data; - int x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((x = sched_policy_from_string(rvalue)) < 0) { - log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue); - return 0; - } - - c->cpu_sched_policy = x; - c->cpu_sched_set = true; - - return 0; -} - -int config_parse_exec_cpu_sched_prio( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - int i; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - /* On Linux RR/FIFO have the same range */ - if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) { - log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue); - return 0; - } - - c->cpu_sched_priority = i; - c->cpu_sched_set = true; - - return 0; -} - -int config_parse_exec_cpu_affinity( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - char *w; - size_t l; - char *state; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - char *t; - int r; - unsigned cpu; - - if (!(t = strndup(w, l))) - return -ENOMEM; - - r = safe_atou(t, &cpu); - free(t); - - if (!(c->cpuset)) - if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus))) - return -ENOMEM; - - if (r < 0 || cpu >= c->cpuset_ncpus) { - log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename, line, rvalue); - return 0; - } - - CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset); - } - - return 0; -} - -int config_parse_exec_capabilities( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - cap_t cap; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (!(cap = cap_from_text(rvalue))) { - if (errno == ENOMEM) - return -ENOMEM; - - log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (c->capabilities) - cap_free(c->capabilities); - c->capabilities = cap; - - return 0; -} - -int config_parse_exec_secure_bits( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - char *w; - size_t l; - char *state; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - if (first_word(w, "keep-caps")) - c->secure_bits |= SECURE_KEEP_CAPS; - else if (first_word(w, "keep-caps-locked")) - c->secure_bits |= SECURE_KEEP_CAPS_LOCKED; - else if (first_word(w, "no-setuid-fixup")) - c->secure_bits |= SECURE_NO_SETUID_FIXUP; - else if (first_word(w, "no-setuid-fixup-locked")) - c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED; - else if (first_word(w, "noroot")) - c->secure_bits |= SECURE_NOROOT; - else if (first_word(w, "noroot-locked")) - c->secure_bits |= SECURE_NOROOT_LOCKED; - else { - log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename, line, rvalue); - return 0; - } - } - - return 0; -} - -int config_parse_exec_bounding_set( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - char *w; - size_t l; - char *state; - bool invert = false; - uint64_t sum = 0; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (rvalue[0] == '~') { - invert = true; - rvalue++; - } - - /* Note that we store this inverted internally, since the - * kernel wants it like this. But we actually expose it - * non-inverted everywhere to have a fully normalized - * interface. */ - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - char *t; - int r; - cap_value_t cap; - - if (!(t = strndup(w, l))) - return -ENOMEM; - - r = cap_from_name(t, &cap); - free(t); - - if (r < 0) { - log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename, line, rvalue); - return 0; - } - - sum |= ((uint64_t) 1ULL) << (uint64_t) cap; - } - - if (invert) - c->capability_bounding_set_drop |= sum; - else - c->capability_bounding_set_drop |= ~sum; - - return 0; -} - -int config_parse_exec_timer_slack_nsec( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - unsigned long u; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (safe_atolu(rvalue, &u) < 0) { - log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename, line, rvalue); - return 0; - } - - c->timer_slack_nsec = u; - - return 0; -} - -int config_parse_limit( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - struct rlimit **rl = data; - unsigned long long u; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - rl += ltype; - - if (streq(rvalue, "infinity")) - u = (unsigned long long) RLIM_INFINITY; - else if (safe_atollu(rvalue, &u) < 0) { - log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (!*rl) - if (!(*rl = new(struct rlimit, 1))) - return -ENOMEM; - - (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u; - return 0; -} - -int config_parse_unit_cgroup( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Unit *u = userdata; - char *w; - size_t l; - char *state; - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - char *t, *k; - int r; - - t = strndup(w, l); - if (!t) - return -ENOMEM; - - k = unit_full_printf(u, t); - free(t); - - if (!k) - return -ENOMEM; - - t = cunescape(k); - free(k); - - if (!t) - return -ENOMEM; - - r = unit_add_cgroup_from_text(u, t); - free(t); - - if (r < 0) { - log_error("[%s:%u] Failed to parse cgroup value, ignoring: %s", filename, line, rvalue); - return 0; - } - } - - return 0; -} - -#ifdef HAVE_SYSV_COMPAT -int config_parse_sysv_priority( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - int *priority = data; - int i; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (safe_atoi(rvalue, &i) < 0 || i < 0) { - log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue); - return 0; - } - - *priority = (int) i; - return 0; -} -#endif - -int config_parse_fsck_passno( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - int *passno = data; - int i; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (safe_atoi(rvalue, &i) || i < 0) { - log_error("[%s:%u] Failed to parse fsck pass number, ignoring: %s", filename, line, rvalue); - return 0; - } - - *passno = (int) i; - return 0; -} - -DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode"); - -int config_parse_kill_signal( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - int *sig = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(sig); - - if ((r = signal_from_string_try_harder(rvalue)) <= 0) { - log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue); - return 0; - } - - *sig = r; - return 0; -} - -int config_parse_exec_mount_flags( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ExecContext *c = data; - char *w; - size_t l; - char *state; - unsigned long flags = 0; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - if (strncmp(w, "shared", MAX(l, 6U)) == 0) - flags |= MS_SHARED; - else if (strncmp(w, "slave", MAX(l, 5U)) == 0) - flags |= MS_SLAVE; - else if (strncmp(w, "private", MAX(l, 7U)) == 0) - flags |= MS_PRIVATE; - else { - log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue); - return 0; - } - } - - c->mount_flags = flags; - return 0; -} - -int config_parse_timer( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Timer *t = data; - usec_t u; - TimerValue *v; - TimerBase b; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((b = timer_base_from_string(lvalue)) < 0) { - log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue); - return 0; - } - - if (parse_usec(rvalue, &u) < 0) { - log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (!(v = new0(TimerValue, 1))) - return -ENOMEM; - - v->base = b; - v->value = u; - - LIST_PREPEND(TimerValue, value, t->values, v); - - return 0; -} - -int config_parse_timer_unit( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Timer *t = data; - int r; - DBusError error; - Unit *u; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - dbus_error_init(&error); - - if (endswith(rvalue, ".timer")) { - log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue); - return 0; - } - - r = manager_load_unit(UNIT(t)->manager, rvalue, NULL, NULL, &u); - if (r < 0) { - log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r)); - dbus_error_free(&error); - return 0; - } - - unit_ref_set(&t->unit, u); - - return 0; -} - -int config_parse_path_spec( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Path *p = data; - PathSpec *s; - PathType b; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((b = path_type_from_string(lvalue)) < 0) { - log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue); - return 0; - } - - if (!path_is_absolute(rvalue)) { - log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (!(s = new0(PathSpec, 1))) - return -ENOMEM; - - if (!(s->path = strdup(rvalue))) { - free(s); - return -ENOMEM; - } - - path_kill_slashes(s->path); - - s->type = b; - s->inotify_fd = -1; - - LIST_PREPEND(PathSpec, spec, p->specs, s); - - return 0; -} - -int config_parse_path_unit( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Path *t = data; - int r; - DBusError error; - Unit *u; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - dbus_error_init(&error); - - if (endswith(rvalue, ".path")) { - log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue); - return 0; - } - - if ((r = manager_load_unit(UNIT(t)->manager, rvalue, NULL, &error, &u)) < 0) { - log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r)); - dbus_error_free(&error); - return 0; - } - - unit_ref_set(&t->unit, u); - - return 0; -} - -int config_parse_socket_service( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Socket *s = data; - int r; - DBusError error; - Unit *x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - dbus_error_init(&error); - - if (!endswith(rvalue, ".service")) { - log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename, line, rvalue); - return 0; - } - - r = manager_load_unit(UNIT(s)->manager, rvalue, NULL, &error, &x); - if (r < 0) { - log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r)); - dbus_error_free(&error); - return 0; - } - - unit_ref_set(&s->service, x); - - return 0; -} - -int config_parse_service_sockets( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Service *s = data; - int r; - char *state, *w; - size_t l; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - FOREACH_WORD_QUOTED(w, l, rvalue, state) { - char *t, *k; - - t = strndup(w, l); - if (!t) - return -ENOMEM; - - k = unit_name_printf(UNIT(s), t); - free(t); - - if (!k) - return -ENOMEM; - - if (!endswith(k, ".socket")) { - log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename, line, rvalue); - free(k); - continue; - } - - r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, NULL, true); - if (r < 0) - log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", filename, line, k, strerror(-r)); - - r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, NULL, true); - if (r < 0) - return r; - - free(k); - } - - return 0; -} - -int config_parse_unit_env_file( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - char ***env = data, **k; - Unit *u = userdata; - char *s; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - s = unit_full_printf(u, rvalue); - if (!s) - return -ENOMEM; - - if (!path_is_absolute(s[0] == '-' ? s + 1 : s)) { - log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, s); - free(s); - return 0; - } - - k = strv_append(*env, s); - free(s); - if (!k) - return -ENOMEM; - - strv_free(*env); - *env = k; - - return 0; -} - -int config_parse_ip_tos( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - int *ip_tos = data, x; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((x = ip_tos_from_string(rvalue)) < 0) - if (safe_atoi(rvalue, &x) < 0) { - log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue); - return 0; - } - - *ip_tos = x; - return 0; -} - -int config_parse_unit_condition_path( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ConditionType cond = ltype; - Unit *u = data; - bool trigger, negate; - Condition *c; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - trigger = rvalue[0] == '|'; - if (trigger) - rvalue++; - - negate = rvalue[0] == '!'; - if (negate) - rvalue++; - - if (!path_is_absolute(rvalue)) { - log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, rvalue); - return 0; - } - - c = condition_new(cond, rvalue, trigger, negate); - if (!c) - return -ENOMEM; - - LIST_PREPEND(Condition, conditions, u->conditions, c); - return 0; -} - -int config_parse_unit_condition_string( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ConditionType cond = ltype; - Unit *u = data; - bool trigger, negate; - Condition *c; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((trigger = rvalue[0] == '|')) - rvalue++; - - if ((negate = rvalue[0] == '!')) - rvalue++; - - if (!(c = condition_new(cond, rvalue, trigger, negate))) - return -ENOMEM; - - LIST_PREPEND(Condition, conditions, u->conditions, c); - return 0; -} - -int config_parse_unit_condition_null( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Unit *u = data; - Condition *c; - bool trigger, negate; - int b; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if ((trigger = rvalue[0] == '|')) - rvalue++; - - if ((negate = rvalue[0] == '!')) - rvalue++; - - if ((b = parse_boolean(rvalue)) < 0) { - log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (!b) - negate = !negate; - - if (!(c = condition_new(CONDITION_NULL, NULL, trigger, negate))) - return -ENOMEM; - - LIST_PREPEND(Condition, conditions, u->conditions, c); - return 0; -} - -DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier"); -DEFINE_CONFIG_PARSE_ENUM(config_parse_start_limit_action, start_limit_action, StartLimitAction, "Failed to parse start limit action specifier"); - -int config_parse_unit_cgroup_attr( - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - Unit *u = data; - char **l; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - l = strv_split_quoted(rvalue); - if (!l) - return -ENOMEM; - - if (strv_length(l) != 2) { - log_error("[%s:%u] Failed to parse cgroup attribute value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - r = unit_add_cgroup_attribute(u, NULL, l[0], l[1], NULL); - strv_free(l); - - if (r < 0) { - log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue); - return 0; - } - - return 0; -} - -int config_parse_unit_cpu_shares(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { - Unit *u = data; - int r; - unsigned long ul; - char *t; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (safe_atolu(rvalue, &ul) < 0 || ul < 1) { - log_error("[%s:%u] Failed to parse CPU shares value, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (asprintf(&t, "%lu", ul) < 0) - return -ENOMEM; - - r = unit_add_cgroup_attribute(u, "cpu", "cpu.shares", t, NULL); - free(t); - - if (r < 0) { - log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue); - return 0; - } - - return 0; -} - -int config_parse_unit_memory_limit(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { - Unit *u = data; - int r; - off_t sz; - char *t; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (parse_bytes(rvalue, &sz) < 0 || sz <= 0) { - log_error("[%s:%u] Failed to parse memory limit value, ignoring: %s", filename, line, rvalue); - return 0; - } - - if (asprintf(&t, "%llu", (unsigned long long) sz) < 0) - return -ENOMEM; - - r = unit_add_cgroup_attribute(u, - "memory", - streq(lvalue, "MemorySoftLimit") ? "memory.soft_limit_in_bytes" : "memory.limit_in_bytes", - t, NULL); - free(t); - - if (r < 0) { - log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue); - return 0; - } - - return 0; -} - -static int device_map(const char *controller, const char *name, const char *value, char **ret) { - char **l; - - assert(controller); - assert(name); - assert(value); - assert(ret); - - l = strv_split_quoted(value); - if (!l) - return -ENOMEM; - - assert(strv_length(l) >= 1); - - if (streq(l[0], "*")) { - - if (asprintf(ret, "a *:*%s%s", - isempty(l[1]) ? "" : " ", strempty(l[1])) < 0) { - strv_free(l); - return -ENOMEM; - } - - } else { - struct stat st; - - if (stat(l[0], &st) < 0) { - log_warning("Couldn't stat device %s", l[0]); - strv_free(l); - return -errno; - } - - if (!S_ISCHR(st.st_mode) && !S_ISBLK(st.st_mode)) { - log_warning("%s is not a device.", l[0]); - strv_free(l); - return -ENODEV; - } - - if (asprintf(ret, "%c %u:%u%s%s", - S_ISCHR(st.st_mode) ? 'c' : 'b', - major(st.st_rdev), minor(st.st_rdev), - isempty(l[1]) ? "" : " ", strempty(l[1])) < 0) { - - strv_free(l); - return -ENOMEM; - } - } - - strv_free(l); - return 0; -} - -int config_parse_unit_device_allow(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { - Unit *u = data; - char **l; - int r; - unsigned k; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - l = strv_split_quoted(rvalue); - if (!l) - return -ENOMEM; - - k = strv_length(l); - if (k < 1 || k > 2) { - log_error("[%s:%u] Failed to parse device value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - if (!streq(l[0], "*") && !path_startswith(l[0], "/dev")) { - log_error("[%s:%u] Device node path not absolute, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - if (!isempty(l[1]) && !in_charset(l[1], "rwm")) { - log_error("[%s:%u] Device access string invalid, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - strv_free(l); - - r = unit_add_cgroup_attribute(u, "devices", - streq(lvalue, "DeviceAllow") ? "devices.allow" : "devices.deny", - rvalue, device_map); - - if (r < 0) { - log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue); - return 0; - } - - return 0; -} - -static int blkio_map(const char *controller, const char *name, const char *value, char **ret) { - struct stat st; - char **l; - dev_t d; - - assert(controller); - assert(name); - assert(value); - assert(ret); - - l = strv_split_quoted(value); - if (!l) - return -ENOMEM; - - assert(strv_length(l) == 2); - - if (stat(l[0], &st) < 0) { - log_warning("Couldn't stat device %s", l[0]); - strv_free(l); - return -errno; - } - - if (S_ISBLK(st.st_mode)) - d = st.st_rdev; - else if (major(st.st_dev) != 0) { - /* If this is not a device node then find the block - * device this file is stored on */ - d = st.st_dev; - - /* If this is a partition, try to get the originating - * block device */ - block_get_whole_disk(d, &d); - } else { - log_warning("%s is not a block device and file system block device cannot be determined or is not local.", l[0]); - strv_free(l); - return -ENODEV; - } - - if (asprintf(ret, "%u:%u %s", major(d), minor(d), l[1]) < 0) { - strv_free(l); - return -ENOMEM; - } - - strv_free(l); - return 0; -} - -int config_parse_unit_blkio_weight(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { - Unit *u = data; - int r; - unsigned long ul; - const char *device = NULL, *weight; - unsigned k; - char *t, **l; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - l = strv_split_quoted(rvalue); - if (!l) - return -ENOMEM; - - k = strv_length(l); - if (k < 1 || k > 2) { - log_error("[%s:%u] Failed to parse weight value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - if (k == 1) - weight = l[0]; - else { - device = l[0]; - weight = l[1]; - } - - if (device && !path_is_absolute(device)) { - log_error("[%s:%u] Failed to parse block device node value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - if (safe_atolu(weight, &ul) < 0 || ul < 10 || ul > 1000) { - log_error("[%s:%u] Failed to parse block IO weight value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - if (device) - r = asprintf(&t, "%s %lu", device, ul); - else - r = asprintf(&t, "%lu", ul); - strv_free(l); - - if (r < 0) - return -ENOMEM; - - if (device) - r = unit_add_cgroup_attribute(u, "blkio", "blkio.weight_device", t, blkio_map); - else - r = unit_add_cgroup_attribute(u, "blkio", "blkio.weight", t, NULL); - free(t); - - if (r < 0) { - log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue); - return 0; - } - - return 0; -} - -int config_parse_unit_blkio_bandwidth(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { - Unit *u = data; - int r; - off_t bytes; - unsigned k; - char *t, **l; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - l = strv_split_quoted(rvalue); - if (!l) - return -ENOMEM; - - k = strv_length(l); - if (k != 2) { - log_error("[%s:%u] Failed to parse bandwidth value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - if (!path_is_absolute(l[0])) { - log_error("[%s:%u] Failed to parse block device node value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - if (parse_bytes(l[1], &bytes) < 0 || bytes <= 0) { - log_error("[%s:%u] Failed to parse block IO bandwith value, ignoring: %s", filename, line, rvalue); - strv_free(l); - return 0; - } - - r = asprintf(&t, "%s %llu", l[0], (unsigned long long) bytes); - strv_free(l); - - if (r < 0) - return -ENOMEM; - - r = unit_add_cgroup_attribute(u, "blkio", - streq(lvalue, "BlockIOReadBandwidth") ? "blkio.read_bps_device" : "blkio.write_bps_device", - t, blkio_map); - free(t); - - if (r < 0) { - log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue); - return 0; - } - - return 0; -} - - -#define FOLLOW_MAX 8 - -static int open_follow(char **filename, FILE **_f, Set *names, char **_final) { - 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, *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, but only if it is a valid - * unit name. */ - name = file_name_from_path(*filename); - - if (unit_name_is_valid(name, true)) { - - id = set_get(names, name); - if (!id) { - id = strdup(name); - if (!id) - return -ENOMEM; - - r = set_put(names, id); - if (r < 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_and_make_absolute(*filename, &target)) < 0) - return r; - - free(*filename); - *filename = target; - } - - if (!(f = fdopen(fd, "re"))) { - r = -errno; - close_nointr_nofail(fd); - return r; - } - - *_f = f; - *_final = id; - return 0; -} - -static int merge_by_names(Unit **u, Set *names, const char *id) { - char *k; - int r; - - assert(u); - assert(*u); - assert(names); - - /* Let's try to add in all symlink names we found */ - while ((k = set_steal_first(names))) { - - /* First try to merge in the other name into our - * unit */ - if ((r = unit_merge_by_name(*u, k)) < 0) { - Unit *other; - - /* Hmm, we couldn't merge the other unit into - * ours? Then let's try it the other way - * round */ - - other = manager_get_unit((*u)->manager, k); - free(k); - - if (other) - if ((r = unit_merge(other, *u)) >= 0) { - *u = other; - return merge_by_names(u, names, NULL); - } - - return r; - } - - if (id == k) - unit_choose_id(*u, id); - - free(k); - } - - return 0; -} - -static int load_from_path(Unit *u, const char *path) { - int r; - Set *symlink_names; - FILE *f = NULL; - char *filename = NULL, *id = NULL; - Unit *merged; - struct stat st; - - assert(u); - assert(path); - - symlink_names = set_new(string_hash_func, string_compare_func); - if (!symlink_names) - return -ENOMEM; - - if (path_is_absolute(path)) { - - if (!(filename = strdup(path))) { - r = -ENOMEM; - goto finish; - } - - if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) { - free(filename); - filename = NULL; - - if (r != -ENOENT) - goto finish; - } - - } else { - char **p; - - STRV_FOREACH(p, u->manager->lookup_paths.unit_path) { - - /* 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, *p))) { - r = -ENOMEM; - goto finish; - } - - if (u->manager->unit_path_cache && - !set_get(u->manager->unit_path_cache, filename)) - r = -ENOENT; - else - r = open_follow(&filename, &f, symlink_names, &id); - - if (r < 0) { - char *sn; - - free(filename); - filename = NULL; - - if (r != -ENOENT) - goto finish; - - /* Empty the symlink names for the next run */ - while ((sn = set_steal_first(symlink_names))) - free(sn); - - continue; - } - - break; - } - } - - if (!filename) { - /* Hmm, no suitable file found? */ - r = 0; - goto finish; - } - - merged = u; - if ((r = merge_by_names(&merged, symlink_names, id)) < 0) - goto finish; - - if (merged != u) { - u->load_state = UNIT_MERGED; - r = 0; - goto finish; - } - - zero(st); - if (fstat(fileno(f), &st) < 0) { - r = -errno; - goto finish; - } - - if (null_or_empty(&st)) - u->load_state = UNIT_MASKED; - else { - /* Now, parse the file contents */ - r = config_parse(filename, f, UNIT_VTABLE(u)->sections, config_item_perf_lookup, (void*) load_fragment_gperf_lookup, false, u); - if (r < 0) - goto finish; - - u->load_state = UNIT_LOADED; - } - - free(u->fragment_path); - u->fragment_path = filename; - filename = NULL; - - u->fragment_mtime = timespec_load(&st.st_mtim); - - r = 0; - -finish: - set_free_free(symlink_names); - free(filename); - - if (f) - fclose(f); - - return r; -} - -int unit_load_fragment(Unit *u) { - int r; - Iterator i; - const char *t; - - assert(u); - assert(u->load_state == UNIT_STUB); - assert(u->id); - - /* First, try to find the unit under its id. We always look - * for unit files in the default directories, to make it easy - * to override things by placing things in /etc/systemd/system */ - if ((r = load_from_path(u, u->id)) < 0) - return r; - - /* Try to find an alias we can load this with */ - if (u->load_state == UNIT_STUB) - SET_FOREACH(t, u->names, i) { - - if (t == u->id) - continue; - - if ((r = load_from_path(u, t)) < 0) - return r; - - if (u->load_state != UNIT_STUB) - break; - } - - /* And now, try looking for it under the suggested (originally linked) path */ - if (u->load_state == UNIT_STUB && u->fragment_path) { - - if ((r = load_from_path(u, u->fragment_path)) < 0) - return r; - - if (u->load_state == UNIT_STUB) { - /* Hmm, this didn't work? Then let's get rid - * of the fragment path stored for us, so that - * we don't point to an invalid location. */ - free(u->fragment_path); - u->fragment_path = NULL; - } - } - - /* Look for a template */ - if (u->load_state == UNIT_STUB && u->instance) { - char *k; - - if (!(k = unit_name_template(u->id))) - return -ENOMEM; - - r = load_from_path(u, k); - free(k); - - if (r < 0) - return r; - - if (u->load_state == UNIT_STUB) - SET_FOREACH(t, u->names, i) { - - if (t == u->id) - continue; - - if (!(k = unit_name_template(t))) - return -ENOMEM; - - r = load_from_path(u, k); - free(k); - - if (r < 0) - return r; - - if (u->load_state != UNIT_STUB) - break; - } - } - - return 0; -} - -void unit_dump_config_items(FILE *f) { - static const struct { - const ConfigParserCallback callback; - const char *rvalue; - } table[] = { - { config_parse_int, "INTEGER" }, - { config_parse_unsigned, "UNSIGNED" }, - { config_parse_bytes_size, "SIZE" }, - { config_parse_bool, "BOOLEAN" }, - { config_parse_string, "STRING" }, - { config_parse_path, "PATH" }, - { config_parse_unit_path_printf, "PATH" }, - { config_parse_strv, "STRING [...]" }, - { config_parse_exec_nice, "NICE" }, - { config_parse_exec_oom_score_adjust, "OOMSCOREADJUST" }, - { config_parse_exec_io_class, "IOCLASS" }, - { config_parse_exec_io_priority, "IOPRIORITY" }, - { config_parse_exec_cpu_sched_policy, "CPUSCHEDPOLICY" }, - { config_parse_exec_cpu_sched_prio, "CPUSCHEDPRIO" }, - { config_parse_exec_cpu_affinity, "CPUAFFINITY" }, - { config_parse_mode, "MODE" }, - { config_parse_unit_env_file, "FILE" }, - { config_parse_output, "OUTPUT" }, - { config_parse_input, "INPUT" }, - { config_parse_facility, "FACILITY" }, - { config_parse_level, "LEVEL" }, - { config_parse_exec_capabilities, "CAPABILITIES" }, - { config_parse_exec_secure_bits, "SECUREBITS" }, - { config_parse_exec_bounding_set, "BOUNDINGSET" }, - { config_parse_exec_timer_slack_nsec, "TIMERSLACK" }, - { config_parse_limit, "LIMIT" }, - { config_parse_unit_cgroup, "CGROUP [...]" }, - { config_parse_unit_deps, "UNIT [...]" }, - { config_parse_unit_names, "UNIT [...]" }, - { config_parse_exec, "PATH [ARGUMENT [...]]" }, - { config_parse_service_type, "SERVICETYPE" }, - { config_parse_service_restart, "SERVICERESTART" }, -#ifdef HAVE_SYSV_COMPAT - { config_parse_sysv_priority, "SYSVPRIORITY" }, -#else - { config_parse_warn_compat, "NOTSUPPORTED" }, -#endif - { config_parse_kill_mode, "KILLMODE" }, - { config_parse_kill_signal, "SIGNAL" }, - { config_parse_socket_listen, "SOCKET [...]" }, - { config_parse_socket_bind, "SOCKETBIND" }, - { config_parse_socket_bindtodevice, "NETWORKINTERFACE" }, - { config_parse_usec, "SECONDS" }, - { config_parse_path_strv, "PATH [...]" }, - { config_parse_exec_mount_flags, "MOUNTFLAG [...]" }, - { config_parse_unit_string_printf, "STRING" }, - { config_parse_timer, "TIMER" }, - { config_parse_timer_unit, "NAME" }, - { config_parse_path_spec, "PATH" }, - { config_parse_path_unit, "UNIT" }, - { config_parse_notify_access, "ACCESS" }, - { config_parse_ip_tos, "TOS" }, - { config_parse_unit_condition_path, "CONDITION" }, - { config_parse_unit_condition_string, "CONDITION" }, - { config_parse_unit_condition_null, "CONDITION" }, - }; - - const char *prev = NULL; - const char *i; - - assert(f); - - NULSTR_FOREACH(i, load_fragment_gperf_nulstr) { - const char *rvalue = "OTHER", *lvalue; - unsigned j; - size_t prefix_len; - const char *dot; - const ConfigPerfItem *p; - - assert_se(p = load_fragment_gperf_lookup(i, strlen(i))); - - dot = strchr(i, '.'); - lvalue = dot ? dot + 1 : i; - prefix_len = dot-i; - - if (dot) - if (!prev || strncmp(prev, i, prefix_len+1) != 0) { - if (prev) - fputc('\n', f); - - fprintf(f, "[%.*s]\n", (int) prefix_len, i); - } - - for (j = 0; j < ELEMENTSOF(table); j++) - if (p->parse == table[j].callback) { - rvalue = table[j].rvalue; - break; - } - - fprintf(f, "%s=%s\n", lvalue, rvalue); - prev = i; - } -} |