| /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| |
| /*** |
| This file is part of systemd. |
| |
| Copyright 2010 Lennart Poettering |
| Copyright 2012 Holger Hans Peter Freyther |
| |
| systemd is free software; you can redistribute it and/or modify it |
| under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation; either version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser 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> |
| |
| #ifdef HAVE_SECCOMP |
| #include <seccomp.h> |
| #endif |
| |
| #include "sd-messages.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 "unit-printf.h" |
| #include "utf8.h" |
| #include "path-util.h" |
| #include "env-util.h" |
| #include "cgroup.h" |
| #include "bus-util.h" |
| #include "bus-error.h" |
| #include "errno-list.h" |
| |
| #ifdef HAVE_SECCOMP |
| #include "seccomp-util.h" |
| #endif |
| |
| #if !defined(HAVE_SYSV_COMPAT) || !defined(HAVE_SECCOMP) || !defined(HAVE_LIBWRAP) || !defined(HAVE_PAM) || !defined(HAVE_SELINUX) || !defined(HAVE_SMACK) |
| int config_parse_warn_compat( |
| 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) { |
| |
| log_syntax(unit, LOG_DEBUG, filename, line, EINVAL, |
| "Support for option %s= has been disabled at compile time and is ignored", |
| lvalue); |
| return 0; |
| } |
| #endif |
| |
| int config_parse_unit_deps(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) { |
| |
| 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) { |
| _cleanup_free_ char *t = NULL, *k = NULL; |
| int r; |
| |
| t = strndup(w, l); |
| if (!t) |
| return log_oom(); |
| |
| r = unit_name_printf(u, t, &k); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve specifiers, ignoring: %s", strerror(-r)); |
| continue; |
| } |
| |
| r = unit_add_dependency_by_name(u, d, k, NULL, true); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to add dependency on %s, ignoring: %s", k, strerror(-r)); |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_unit_string_printf(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) { |
| |
| Unit *u = userdata; |
| _cleanup_free_ char *k = NULL; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(u); |
| |
| r = unit_full_printf(u, rvalue, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r)); |
| |
| return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, |
| k ? k : rvalue, data, userdata); |
| } |
| |
| int config_parse_unit_strv_printf(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) { |
| |
| Unit *u = userdata; |
| _cleanup_free_ char *k = NULL; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(u); |
| |
| r = unit_full_printf(u, rvalue, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r)); |
| |
| return config_parse_strv(unit, filename, line, section, section_line, lvalue, ltype, |
| k ? k : rvalue, data, userdata); |
| } |
| |
| int config_parse_unit_path_printf(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) { |
| |
| Unit *u = userdata; |
| _cleanup_free_ char *k = NULL; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(u); |
| |
| r = unit_full_printf(u, rvalue, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r)); |
| |
| return config_parse_path(unit, filename, line, section, section_line, lvalue, ltype, |
| k ? k : rvalue, data, userdata); |
| } |
| |
| int config_parse_socket_listen(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) { |
| |
| SocketPort *p, *tail; |
| Socket *s; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| s = SOCKET(data); |
| |
| if (isempty(rvalue)) { |
| /* An empty assignment removes all ports */ |
| socket_free_ports(s); |
| return 0; |
| } |
| |
| p = new0(SocketPort, 1); |
| if (!p) |
| return log_oom(); |
| |
| if (ltype != SOCKET_SOCKET) { |
| |
| p->type = ltype; |
| r = unit_full_printf(UNIT(s), rvalue, &p->path); |
| if (r < 0) { |
| p->path = strdup(rvalue); |
| if (!p->path) { |
| free(p); |
| return log_oom(); |
| } else |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r)); |
| } |
| |
| path_kill_slashes(p->path); |
| |
| } else if (streq(lvalue, "ListenNetlink")) { |
| _cleanup_free_ char *k = NULL; |
| |
| p->type = SOCKET_SOCKET; |
| r = unit_full_printf(UNIT(s), rvalue, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r)); |
| |
| r = socket_address_parse_netlink(&p->address, k ? k : rvalue); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse address value, ignoring: %s", rvalue); |
| free(p); |
| return 0; |
| } |
| |
| } else { |
| _cleanup_free_ char *k = NULL; |
| |
| p->type = SOCKET_SOCKET; |
| r = unit_full_printf(UNIT(s), rvalue, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r)); |
| |
| r = socket_address_parse(&p->address, k ? k : rvalue); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse address value, ignoring: %s", 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_syntax(unit, LOG_ERR, filename, line, ENOTSUP, |
| "Address family not supported, ignoring: %s", rvalue); |
| free(p); |
| return 0; |
| } |
| } |
| |
| p->fd = -1; |
| p->socket = s; |
| |
| if (s->ports) { |
| LIST_FIND_TAIL(port, s->ports, tail); |
| LIST_INSERT_AFTER(port, s->ports, tail, p); |
| } else |
| LIST_PREPEND(port, s->ports, p); |
| |
| return 0; |
| } |
| |
| int config_parse_socket_bind(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) { |
| |
| Socket *s; |
| SocketAddressBindIPv6Only b; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| s = SOCKET(data); |
| |
| b = socket_address_bind_ipv6_only_from_string(rvalue); |
| if (b < 0) { |
| int r; |
| |
| r = parse_boolean(rvalue); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse bind IPv6 only value, ignoring: %s", 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 *unit, |
| const char *filename, |
| unsigned line, |
| const char *section, |
| unsigned section_line, |
| const char *lvalue, |
| int ltype, |
| const char *rvalue, |
| void *data, |
| void *userdata) { |
| |
| ExecContext *c = data; |
| int priority, r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| r = safe_atoi(rvalue, &priority); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse nice priority, ignoring: %s. ", rvalue); |
| return 0; |
| } |
| |
| if (priority < PRIO_MIN || priority >= PRIO_MAX) { |
| log_syntax(unit, LOG_ERR, filename, line, ERANGE, |
| "Nice priority out of range, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| c->nice = priority; |
| c->nice_set = true; |
| |
| return 0; |
| } |
| |
| int config_parse_exec_oom_score_adjust(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) { |
| |
| ExecContext *c = data; |
| int oa, r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| r = safe_atoi(rvalue, &oa); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse the OOM score adjust value, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) { |
| log_syntax(unit, LOG_ERR, filename, line, ERANGE, |
| "OOM score adjust value out of range, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| c->oom_score_adjust = oa; |
| c->oom_score_adjust_set = true; |
| |
| return 0; |
| } |
| |
| int config_parse_exec(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) { |
| |
| ExecCommand **e = data, *nce; |
| char *path, **n; |
| unsigned k; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(e); |
| |
| e += ltype; |
| |
| if (isempty(rvalue)) { |
| /* An empty assignment resets the list */ |
| exec_command_free_list(*e); |
| *e = NULL; |
| return 0; |
| } |
| |
| /* We accept an absolute path as first argument, or |
| * alternatively an absolute prefixed with @ to allow |
| * overriding of argv[0]. */ |
| for (;;) { |
| int i; |
| 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; |
| |
| for (i = 0; i < 2; i++) { |
| if (rvalue[0] == '-' && !ignore) { |
| ignore = true; |
| rvalue ++; |
| } |
| |
| if (rvalue[0] == '@' && !honour_argv0) { |
| honour_argv0 = true; |
| rvalue ++; |
| } |
| } |
| |
| if (*rvalue != '/') { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Executable path is not absolute, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| k = 0; |
| FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
| if (strneq(w, ";", MAX(l, 1U))) |
| break; |
| |
| k++; |
| } |
| |
| n = new(char*, k + !honour_argv0); |
| if (!n) |
| return log_oom(); |
| |
| k = 0; |
| FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
| if (strneq(w, ";", MAX(l, 1U))) |
| break; |
| else if (strneq(w, "\\;", MAX(l, 1U))) |
| w ++; |
| |
| if (honour_argv0 && w == rvalue) { |
| assert(!path); |
| |
| path = strndup(w, l); |
| if (!path) { |
| r = log_oom(); |
| goto fail; |
| } |
| |
| if (!utf8_is_valid(path)) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Path is not UTF-8 clean, ignoring assignment: %s", |
| rvalue); |
| r = 0; |
| goto fail; |
| } |
| |
| } else { |
| char *c; |
| |
| c = n[k++] = cunescape_length(w, l); |
| if (!c) { |
| r = log_oom(); |
| goto fail; |
| } |
| |
| if (!utf8_is_valid(c)) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Path is not UTF-8 clean, ignoring assignment: %s", |
| rvalue); |
| r = 0; |
| goto fail; |
| } |
| } |
| } |
| |
| n[k] = NULL; |
| |
| if (!n[0]) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Invalid command line, ignoring: %s", rvalue); |
| r = 0; |
| goto fail; |
| } |
| |
| if (!path) { |
| path = strdup(n[0]); |
| if (!path) { |
| r = log_oom(); |
| goto fail; |
| } |
| } |
| |
| assert(path_is_absolute(path)); |
| |
| nce = new0(ExecCommand, 1); |
| if (!nce) { |
| r = log_oom(); |
| 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* unit, |
| const char *filename, |
| unsigned line, |
| const char *section, |
| unsigned section_line, |
| 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, "*")) { |
| n = strdup(rvalue); |
| if (!n) |
| return log_oom(); |
| } 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_exec_io_class(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) { |
| |
| ExecContext *c = data; |
| int x; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| x = ioprio_class_from_string(rvalue); |
| if (x < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse IO scheduling class, ignoring: %s", 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 *unit, |
| const char *filename, |
| unsigned line, |
| const char *section, |
| unsigned section_line, |
| const char *lvalue, |
| int ltype, |
| const char *rvalue, |
| void *data, |
| void *userdata) { |
| |
| ExecContext *c = data; |
| int i, r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| r = safe_atoi(rvalue, &i); |
| if (r < 0 || i < 0 || i >= IOPRIO_BE_NR) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse IO priority, ignoring: %s", 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 *unit, |
| const char *filename, |
| unsigned line, |
| const char *section, |
| unsigned section_line, |
| 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); |
| |
| x = sched_policy_from_string(rvalue); |
| if (x < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -x, |
| "Failed to parse CPU scheduling policy, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| c->cpu_sched_policy = x; |
| /* Moving to or from real-time policy? We need to adjust the priority */ |
| c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(x), sched_get_priority_max(x)); |
| c->cpu_sched_set = true; |
| |
| return 0; |
| } |
| |
| int config_parse_exec_cpu_sched_prio(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) { |
| |
| ExecContext *c = data; |
| int i, min, max, r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| r = safe_atoi(rvalue, &i); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse CPU scheduling policy, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| /* On Linux RR/FIFO range from 1 to 99 and OTHER/BATCH may only be 0 */ |
| min = sched_get_priority_min(c->cpu_sched_policy); |
| max = sched_get_priority_max(c->cpu_sched_policy); |
| |
| if (i < min || i > max) { |
| log_syntax(unit, LOG_ERR, filename, line, ERANGE, |
| "CPU scheduling priority is out of range, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| c->cpu_sched_priority = i; |
| c->cpu_sched_set = true; |
| |
| return 0; |
| } |
| |
| int config_parse_exec_cpu_affinity(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) { |
| |
| ExecContext *c = data; |
| char *w; |
| size_t l; |
| char *state; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* An empty assignment resets the CPU list */ |
| if (c->cpuset) |
| CPU_FREE(c->cpuset); |
| c->cpuset = NULL; |
| return 0; |
| } |
| |
| FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
| _cleanup_free_ char *t = NULL; |
| int r; |
| unsigned cpu; |
| |
| t = strndup(w, l); |
| if (!t) |
| return log_oom(); |
| |
| r = safe_atou(t, &cpu); |
| |
| if (!c->cpuset) { |
| c->cpuset = cpu_set_malloc(&c->cpuset_ncpus); |
| if (!c->cpuset) |
| return log_oom(); |
| } |
| |
| if (r < 0 || cpu >= c->cpuset_ncpus) { |
| log_syntax(unit, LOG_ERR, filename, line, ERANGE, |
| "Failed to parse CPU affinity '%s', ignoring: %s", t, rvalue); |
| return 0; |
| } |
| |
| CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset); |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_exec_capabilities(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) { |
| |
| ExecContext *c = data; |
| cap_t cap; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| cap = cap_from_text(rvalue); |
| if (!cap) { |
| log_syntax(unit, LOG_ERR, filename, line, errno, |
| "Failed to parse capabilities, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| if (c->capabilities) |
| cap_free(c->capabilities); |
| c->capabilities = cap; |
| |
| return 0; |
| } |
| |
| int config_parse_exec_secure_bits(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) { |
| |
| ExecContext *c = data; |
| char *w; |
| size_t l; |
| char *state; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* An empty assignment resets the field */ |
| c->secure_bits = 0; |
| return 0; |
| } |
| |
| FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
| if (first_word(w, "keep-caps")) |
| c->secure_bits |= 1<<SECURE_KEEP_CAPS; |
| else if (first_word(w, "keep-caps-locked")) |
| c->secure_bits |= 1<<SECURE_KEEP_CAPS_LOCKED; |
| else if (first_word(w, "no-setuid-fixup")) |
| c->secure_bits |= 1<<SECURE_NO_SETUID_FIXUP; |
| else if (first_word(w, "no-setuid-fixup-locked")) |
| c->secure_bits |= 1<<SECURE_NO_SETUID_FIXUP_LOCKED; |
| else if (first_word(w, "noroot")) |
| c->secure_bits |= 1<<SECURE_NOROOT; |
| else if (first_word(w, "noroot-locked")) |
| c->secure_bits |= 1<<SECURE_NOROOT_LOCKED; |
| else { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse secure bits, ignoring: %s", rvalue); |
| return 0; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_bounding_set(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) { |
| |
| uint64_t *capability_bounding_set_drop = 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) { |
| _cleanup_free_ char *t = NULL; |
| int r; |
| cap_value_t cap; |
| |
| t = strndup(w, l); |
| if (!t) |
| return log_oom(); |
| |
| r = cap_from_name(t, &cap); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, errno, |
| "Failed to parse capability in bounding set, ignoring: %s", t); |
| continue; |
| } |
| |
| sum |= ((uint64_t) 1ULL) << (uint64_t) cap; |
| } |
| |
| if (invert) |
| *capability_bounding_set_drop |= sum; |
| else |
| *capability_bounding_set_drop |= ~sum; |
| |
| return 0; |
| } |
| |
| int config_parse_limit(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) { |
| |
| 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 { |
| int r; |
| |
| r = safe_atollu(rvalue, &u); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse resource value, ignoring: %s", rvalue); |
| return 0; |
| } |
| } |
| |
| if (!*rl) { |
| *rl = new(struct rlimit, 1); |
| if (!*rl) |
| return log_oom(); |
| } |
| |
| (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u; |
| return 0; |
| } |
| |
| #ifdef HAVE_SYSV_COMPAT |
| int config_parse_sysv_priority(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 *priority = data; |
| int i, r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| r = safe_atoi(rvalue, &i); |
| if (r < 0 || i < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse SysV start priority, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| *priority = (int) i; |
| return 0; |
| } |
| #endif |
| |
| DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode"); |
| |
| int config_parse_kill_signal(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 *sig = data; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(sig); |
| |
| r = signal_from_string_try_harder(rvalue); |
| if (r <= 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to parse kill signal, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| *sig = r; |
| return 0; |
| } |
| |
| int config_parse_exec_mount_flags(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) { |
| |
| ExecContext *c = data; |
| char *w; |
| size_t l; |
| char *state; |
| unsigned long flags = 0; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| FOREACH_WORD_SEPARATOR(w, l, rvalue, ", ", state) { |
| _cleanup_free_ char *t; |
| |
| t = strndup(w, l); |
| if (!t) |
| return log_oom(); |
| |
| if (streq(t, "shared")) |
| flags |= MS_SHARED; |
| else if (streq(t, "slave")) |
| flags |= MS_SLAVE; |
| else if (streq(w, "private")) |
| flags |= MS_PRIVATE; |
| else { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse mount flag %s, ignoring: %s", |
| t, rvalue); |
| return 0; |
| } |
| } |
| |
| c->mount_flags = flags; |
| return 0; |
| } |
| |
| int config_parse_exec_selinux_context( |
| 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) { |
| |
| ExecContext *c = data; |
| Unit *u = userdata; |
| bool ignore; |
| char *k; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| free(c->selinux_context); |
| c->selinux_context = NULL; |
| c->selinux_context_ignore = false; |
| return 0; |
| } |
| |
| if (rvalue[0] == '-') { |
| ignore = true; |
| rvalue++; |
| } else |
| ignore = false; |
| |
| r = unit_name_printf(u, rvalue, &k); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, "Failed to resolve specifiers, ignoring: %s", strerror(-r)); |
| return 0; |
| } |
| |
| free(c->selinux_context); |
| c->selinux_context = k; |
| c->selinux_context_ignore = ignore; |
| |
| return 0; |
| } |
| |
| int config_parse_timer(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) { |
| |
| Timer *t = data; |
| usec_t u = 0; |
| TimerValue *v; |
| TimerBase b; |
| CalendarSpec *c = NULL; |
| clockid_t id; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets list */ |
| timer_free_values(t); |
| return 0; |
| } |
| |
| b = timer_base_from_string(lvalue); |
| if (b < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -b, |
| "Failed to parse timer base, ignoring: %s", lvalue); |
| return 0; |
| } |
| |
| if (b == TIMER_CALENDAR) { |
| if (calendar_spec_from_string(rvalue, &c) < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse calendar specification, ignoring: %s", |
| rvalue); |
| return 0; |
| } |
| |
| id = CLOCK_REALTIME; |
| } else { |
| if (parse_sec(rvalue, &u) < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse timer value, ignoring: %s", |
| rvalue); |
| return 0; |
| } |
| |
| id = CLOCK_MONOTONIC; |
| } |
| |
| v = new0(TimerValue, 1); |
| if (!v) |
| return log_oom(); |
| |
| v->base = b; |
| v->clock_id = id; |
| v->value = u; |
| v->calendar_spec = c; |
| |
| LIST_PREPEND(value, t->values, v); |
| |
| return 0; |
| } |
| |
| int config_parse_trigger_unit( |
| 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; |
| Unit *u = data; |
| UnitType type; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (!set_isempty(u->dependencies[UNIT_TRIGGERS])) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Multiple units to trigger specified, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| r = unit_name_printf(u, rvalue, &p); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve specifiers, ignoring: %s", strerror(-r)); |
| |
| type = unit_name_to_type(p ?: rvalue); |
| if (type < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Unit type not valid, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| if (type == u->type) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Trigger cannot be of same type, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p ?: rvalue, NULL, true); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to add trigger on %s, ignoring: %s", p ?: rvalue, strerror(-r)); |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_path_spec(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) { |
| |
| Path *p = data; |
| PathSpec *s; |
| PathType b; |
| _cleanup_free_ char *k = NULL; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment clears list */ |
| path_free_specs(p); |
| return 0; |
| } |
| |
| b = path_type_from_string(lvalue); |
| if (b < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse path type, ignoring: %s", lvalue); |
| return 0; |
| } |
| |
| r = unit_full_printf(UNIT(p), rvalue, &k); |
| if (r < 0) { |
| k = strdup(rvalue); |
| if (!k) |
| return log_oom(); |
| else |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s. Ignoring.", |
| rvalue); |
| } |
| |
| if (!path_is_absolute(k)) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Path is not absolute, ignoring: %s", k); |
| return 0; |
| } |
| |
| s = new0(PathSpec, 1); |
| if (!s) |
| return log_oom(); |
| |
| s->unit = UNIT(p); |
| s->path = path_kill_slashes(k); |
| k = NULL; |
| s->type = b; |
| s->inotify_fd = -1; |
| |
| LIST_PREPEND(spec, p->specs, s); |
| |
| return 0; |
| } |
| |
| int config_parse_socket_service(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_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
| Socket *s = data; |
| int r; |
| Unit *x; |
| _cleanup_free_ char *p = NULL; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| 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 (!endswith(p, ".service")) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Unit must be of type service, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, r, "Failed to load unit %s, ignoring: %s", rvalue, bus_error_message(&error, r)); |
| return 0; |
| } |
| |
| unit_ref_set(&s->service, x); |
| |
| return 0; |
| } |
| |
| int config_parse_service_sockets(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) { |
| |
| 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) { |
| _cleanup_free_ char *t = NULL, *k = NULL; |
| |
| t = strndup(w, l); |
| if (!t) |
| return log_oom(); |
| |
| r = unit_name_printf(UNIT(s), t, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve specifiers, ignoring: %s", strerror(-r)); |
| |
| if (!endswith(k ?: t, ".socket")) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Unit must be of type socket, ignoring: %s", k ?: t); |
| continue; |
| } |
| |
| r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k ?: t, NULL, true); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to add dependency on %s, ignoring: %s", |
| k ?: t, strerror(-r)); |
| |
| r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k ?: t, NULL, true); |
| if (r < 0) |
| return r; |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_service_timeout(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) { |
| |
| Service *s = userdata; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(s); |
| |
| r = config_parse_sec(unit, filename, line, section, section_line, lvalue, ltype, |
| rvalue, data, userdata); |
| if (r < 0) |
| return r; |
| |
| if (streq(lvalue, "TimeoutSec")) { |
| s->start_timeout_defined = true; |
| s->timeout_stop_usec = s->timeout_start_usec; |
| } else if (streq(lvalue, "TimeoutStartSec")) |
| s->start_timeout_defined = true; |
| |
| return 0; |
| } |
| |
| int config_parse_busname_service( |
| 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_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
| BusName *n = data; |
| int r; |
| Unit *x; |
| _cleanup_free_ char *p = NULL; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| r = unit_name_printf(UNIT(n), rvalue, &p); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, "Failed to resolve specifiers, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| if (!endswith(p, ".service")) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Unit must be of type service, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| r = manager_load_unit(UNIT(n)->manager, p, NULL, &error, &x); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, r, "Failed to load unit %s, ignoring: %s", rvalue, bus_error_message(&error, r)); |
| return 0; |
| } |
| |
| unit_ref_set(&n->service, x); |
| |
| return 0; |
| } |
| |
| int config_parse_unit_env_file(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) { |
| |
| char ***env = data; |
| Unit *u = userdata; |
| _cleanup_free_ char *n = NULL; |
| const char *s; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment frees the list */ |
| strv_free(*env); |
| *env = NULL; |
| return 0; |
| } |
| |
| r = unit_full_printf(u, rvalue, &n); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, r, |
| "Failed to resolve specifiers, ignoring: %s", rvalue); |
| |
| s = n ?: rvalue; |
| if (!path_is_absolute(s[0] == '-' ? s + 1 : s)) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Path '%s' is not absolute, ignoring.", s); |
| return 0; |
| } |
| |
| r = strv_extend(env, s); |
| if (r < 0) |
| return log_oom(); |
| |
| return 0; |
| } |
| |
| int config_parse_environ(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) { |
| |
| Unit *u = userdata; |
| char*** env = data, *w, *state; |
| size_t l; |
| _cleanup_free_ char *k = NULL; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets the list */ |
| strv_free(*env); |
| *env = NULL; |
| return 0; |
| } |
| |
| if (u) { |
| r = unit_full_printf(u, rvalue, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve specifiers, ignoring: %s", rvalue); |
| } |
| |
| if (!k) |
| k = strdup(rvalue); |
| if (!k) |
| return log_oom(); |
| |
| FOREACH_WORD_QUOTED(w, l, k, state) { |
| _cleanup_free_ char *n; |
| char **x; |
| |
| n = cunescape_length(w, l); |
| if (!n) |
| return log_oom(); |
| |
| if (!env_assignment_is_valid(n)) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Invalid environment assignment, ignoring: %s", rvalue); |
| continue; |
| } |
| |
| x = strv_env_set(*env, n); |
| if (!x) |
| return log_oom(); |
| |
| strv_free(*env); |
| *env = x; |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_ip_tos(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 *ip_tos = data, x; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| x = ip_tos_from_string(rvalue); |
| if (x < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse IP TOS value, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| *ip_tos = x; |
| return 0; |
| } |
| |
| int config_parse_unit_condition_path(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) { |
| |
| ConditionType cond = ltype; |
| Unit *u = data; |
| bool trigger, negate; |
| Condition *c; |
| _cleanup_free_ char *p = NULL; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets the list */ |
| condition_free_list(u->conditions); |
| u->conditions = NULL; |
| return 0; |
| } |
| |
| trigger = rvalue[0] == '|'; |
| if (trigger) |
| rvalue++; |
| |
| negate = rvalue[0] == '!'; |
| if (negate) |
| rvalue++; |
| |
| r = unit_full_printf(u, rvalue, &p); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve specifiers, ignoring: %s", rvalue); |
| if (!p) { |
| p = strdup(rvalue); |
| if (!p) |
| return log_oom(); |
| } |
| |
| if (!path_is_absolute(p)) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Path in condition not absolute, ignoring: %s", p); |
| return 0; |
| } |
| |
| c = condition_new(cond, p, trigger, negate); |
| if (!c) |
| return log_oom(); |
| |
| LIST_PREPEND(conditions, u->conditions, c); |
| return 0; |
| } |
| |
| int config_parse_unit_condition_string(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) { |
| |
| ConditionType cond = ltype; |
| Unit *u = data; |
| bool trigger, negate; |
| Condition *c; |
| _cleanup_free_ char *s = NULL; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets the list */ |
| condition_free_list(u->conditions); |
| u->conditions = NULL; |
| return 0; |
| } |
| |
| trigger = rvalue[0] == '|'; |
| if (trigger) |
| rvalue++; |
| |
| negate = rvalue[0] == '!'; |
| if (negate) |
| rvalue++; |
| |
| r = unit_full_printf(u, rvalue, &s); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve specifiers, ignoring: %s", rvalue); |
| if (!s) { |
| s = strdup(rvalue); |
| if (!s) |
| return log_oom(); |
| } |
| |
| c = condition_new(cond, s, trigger, negate); |
| if (!c) |
| return log_oom(); |
| |
| LIST_PREPEND(conditions, u->conditions, c); |
| return 0; |
| } |
| |
| int config_parse_unit_condition_null(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) { |
| |
| Unit *u = data; |
| Condition *c; |
| bool trigger, negate; |
| int b; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets the list */ |
| condition_free_list(u->conditions); |
| u->conditions = NULL; |
| return 0; |
| } |
| |
| trigger = rvalue[0] == '|'; |
| if (trigger) |
| rvalue++; |
| |
| negate = rvalue[0] == '!'; |
| if (negate) |
| rvalue++; |
| |
| b = parse_boolean(rvalue); |
| if (b < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -b, |
| "Failed to parse boolean value in condition, ignoring: %s", |
| rvalue); |
| return 0; |
| } |
| |
| if (!b) |
| negate = !negate; |
| |
| c = condition_new(CONDITION_NULL, NULL, trigger, negate); |
| if (!c) |
| return log_oom(); |
| |
| LIST_PREPEND(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_requires_mounts_for( |
| 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) { |
| |
| Unit *u = userdata; |
| char *state; |
| size_t l; |
| char *w; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(data); |
| |
| FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
| int r; |
| _cleanup_free_ char *n; |
| |
| n = strndup(w, l); |
| if (!n) |
| return log_oom(); |
| |
| if (!utf8_is_valid(n)) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Path is not UTF-8 clean, ignoring assignment: %s", rvalue); |
| continue; |
| } |
| |
| r = unit_require_mounts_for(u, n); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, r, |
| "Failed to add required mount for, ignoring: %s", rvalue); |
| continue; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_documentation(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) { |
| |
| Unit *u = userdata; |
| int r; |
| char **a, **b; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(u); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets the list */ |
| strv_free(u->documentation); |
| u->documentation = NULL; |
| return 0; |
| } |
| |
| r = config_parse_unit_strv_printf(unit, filename, line, section, section_line, lvalue, ltype, |
| rvalue, data, userdata); |
| if (r < 0) |
| return r; |
| |
| for (a = b = u->documentation; a && *a; a++) { |
| |
| if (is_valid_documentation_url(*a)) |
| *(b++) = *a; |
| else { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Invalid URL, ignoring: %s", *a); |
| free(*a); |
| } |
| } |
| if (b) |
| *b = NULL; |
| |
| return r; |
| } |
| |
| #ifdef HAVE_SECCOMP |
| int config_parse_syscall_filter( |
| 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) { |
| |
| static const char default_syscalls[] = |
| "execve\0" |
| "exit\0" |
| "exit_group\0" |
| "rt_sigreturn\0" |
| "sigreturn\0"; |
| |
| ExecContext *c = data; |
| Unit *u = userdata; |
| bool invert = false; |
| char *w, *state; |
| size_t l; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(u); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets the list */ |
| set_free(c->syscall_filter); |
| c->syscall_filter = NULL; |
| c->syscall_whitelist = false; |
| return 0; |
| } |
| |
| if (rvalue[0] == '~') { |
| invert = true; |
| rvalue++; |
| } |
| |
| if (!c->syscall_filter) { |
| c->syscall_filter = set_new(trivial_hash_func, trivial_compare_func); |
| if (!c->syscall_filter) |
| return log_oom(); |
| |
| if (invert) |
| /* Allow everything but the ones listed */ |
| c->syscall_whitelist = false; |
| else { |
| const char *i; |
| |
| /* Allow nothing but the ones listed */ |
| c->syscall_whitelist = true; |
| |
| /* Accept default syscalls if we are on a whitelist */ |
| NULSTR_FOREACH(i, default_syscalls) { |
| int id; |
| |
| id = seccomp_syscall_resolve_name(i); |
| if (id < 0) |
| continue; |
| |
| r = set_put(c->syscall_filter, INT_TO_PTR(id + 1)); |
| if (r == -EEXIST) |
| continue; |
| if (r < 0) |
| return log_oom(); |
| } |
| } |
| } |
| |
| FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
| _cleanup_free_ char *t = NULL; |
| int id; |
| |
| t = strndup(w, l); |
| if (!t) |
| return log_oom(); |
| |
| id = seccomp_syscall_resolve_name(t); |
| if (id < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Failed to parse system call, ignoring: %s", t); |
| continue; |
| } |
| |
| /* If we previously wanted to forbid a syscall and now |
| * we want to allow it, then remove it from the list |
| */ |
| if (!invert == c->syscall_whitelist) { |
| r = set_put(c->syscall_filter, INT_TO_PTR(id + 1)); |
| if (r == -EEXIST) |
| continue; |
| if (r < 0) |
| return log_oom(); |
| } else |
| set_remove(c->syscall_filter, INT_TO_PTR(id + 1)); |
| } |
| |
| c->no_new_privileges = true; |
| |
| return 0; |
| } |
| |
| int config_parse_syscall_archs( |
| 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) { |
| |
| Set **archs = data; |
| char *w, *state; |
| size_t l; |
| int r; |
| |
| if (isempty(rvalue)) { |
| set_free(*archs); |
| *archs = NULL; |
| return 0; |
| } |
| |
| r = set_ensure_allocated(archs, trivial_hash_func, trivial_compare_func); |
| if (r < 0) |
| return log_oom(); |
| |
| FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
| _cleanup_free_ char *t = NULL; |
| uint32_t a; |
| |
| t = strndup(w, l); |
| if (!t) |
| return log_oom(); |
| |
| r = seccomp_arch_from_string(t, &a); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Failed to parse system call architecture, ignoring: %s", t); |
| continue; |
| } |
| |
| r = set_put(*archs, UINT32_TO_PTR(a + 1)); |
| if (r == -EEXIST) |
| continue; |
| if (r < 0) |
| return log_oom(); |
| } |
| |
| return 0; |
| } |
| |
| int config_parse_syscall_errno( |
| 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) { |
| |
| ExecContext *c = data; |
| int e; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| |
| if (isempty(rvalue)) { |
| /* Empty assignment resets to KILL */ |
| c->syscall_errno = 0; |
| return 0; |
| } |
| |
| e = errno_from_name(rvalue); |
| if (e < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Failed to parse error number, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| c->syscall_errno = e; |
| return 0; |
| } |
| #endif |
| |
| int config_parse_unit_slice( |
| 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 *k = NULL; |
| Unit *u = userdata, *slice; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(u); |
| |
| r = unit_name_printf(u, rvalue, &k); |
| if (r < 0) |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to resolve unit specifiers on %s. Ignoring.", rvalue); |
| if (!k) { |
| k = strdup(rvalue); |
| if (!k) |
| return log_oom(); |
| } |
| |
| r = manager_load_unit(u->manager, k, NULL, NULL, &slice); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, -r, |
| "Failed to load slice unit %s. Ignoring.", k); |
| return 0; |
| } |
| |
| if (slice->type != UNIT_SLICE) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Slice unit %s is not a slice. Ignoring.", k); |
| return 0; |
| } |
| |
| unit_ref_set(&u->slice, slice); |
| return 0; |
| } |
| |
| DEFINE_CONFIG_PARSE_ENUM(config_parse_device_policy, cgroup_device_policy, CGroupDevicePolicy, "Failed to parse device policy"); |
| |
| int config_parse_cpu_shares( |
| 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) { |
| |
| CGroupContext *c = data; |
| unsigned long lu; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| |
| if (isempty(rvalue)) { |
| c->cpu_shares = 1024; |
| return 0; |
| } |
| |
| r = safe_atolu(rvalue, &lu); |
| if (r < 0 || lu <= 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "CPU shares '%s' invalid. Ignoring.", rvalue); |
| return 0; |
| } |
| |
| c->cpu_shares = lu; |
| return 0; |
| } |
| |
| int config_parse_memory_limit( |
| 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) { |
| |
| CGroupContext *c = data; |
| off_t bytes; |
| int r; |
| |
| if (isempty(rvalue)) { |
| c->memory_limit = (uint64_t) -1; |
| return 0; |
| } |
| |
| assert_cc(sizeof(uint64_t) == sizeof(off_t)); |
| |
| r = parse_bytes(rvalue, &bytes); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Memory limit '%s' invalid. Ignoring.", rvalue); |
| return 0; |
| } |
| |
| c->memory_limit = (uint64_t) bytes; |
| return 0; |
| } |
| |
| int config_parse_device_allow( |
| 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 *path = NULL; |
| CGroupContext *c = data; |
| CGroupDeviceAllow *a; |
| const char *m; |
| size_t n; |
| |
| if (isempty(rvalue)) { |
| while (c->device_allow) |
| cgroup_context_free_device_allow(c, c->device_allow); |
| |
| return 0; |
| } |
| |
| n = strcspn(rvalue, WHITESPACE); |
| path = strndup(rvalue, n); |
| if (!path) |
| return log_oom(); |
| |
| if (!path_startswith(path, "/dev")) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Invalid device node path '%s'. Ignoring.", path); |
| return 0; |
| } |
| |
| m = rvalue + n + strspn(rvalue + n, WHITESPACE); |
| if (isempty(m)) |
| m = "rwm"; |
| |
| if (!in_charset(m, "rwm")) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Invalid device rights '%s'. Ignoring.", m); |
| return 0; |
| } |
| |
| a = new0(CGroupDeviceAllow, 1); |
| if (!a) |
| return log_oom(); |
| |
| a->path = path; |
| path = NULL; |
| a->r = !!strchr(m, 'r'); |
| a->w = !!strchr(m, 'w'); |
| a->m = !!strchr(m, 'm'); |
| |
| LIST_PREPEND(device_allow, c->device_allow, a); |
| return 0; |
| } |
| |
| int config_parse_blockio_weight( |
| 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) { |
| |
| CGroupContext *c = data; |
| unsigned long lu; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| |
| if (isempty(rvalue)) { |
| c->blockio_weight = 1000; |
| return 0; |
| } |
| |
| r = safe_atolu(rvalue, &lu); |
| if (r < 0 || lu < 10 || lu > 1000) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Block IO weight '%s' invalid. Ignoring.", rvalue); |
| return 0; |
| } |
| |
| c->blockio_weight = lu; |
| |
| return 0; |
| } |
| |
| int config_parse_blockio_device_weight( |
| 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 *path = NULL; |
| CGroupBlockIODeviceWeight *w; |
| CGroupContext *c = data; |
| unsigned long lu; |
| const char *weight; |
| size_t n; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| |
| if (isempty(rvalue)) { |
| while (c->blockio_device_weights) |
| cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights); |
| |
| return 0; |
| } |
| |
| n = strcspn(rvalue, WHITESPACE); |
| weight = rvalue + n; |
| if (!*weight) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Expected block device and device weight. Ignoring."); |
| return 0; |
| } |
| |
| path = strndup(rvalue, n); |
| if (!path) |
| return log_oom(); |
| |
| if (!path_startswith(path, "/dev")) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Invalid device node path '%s'. Ignoring.", path); |
| return 0; |
| } |
| |
| weight += strspn(weight, WHITESPACE); |
| r = safe_atolu(weight, &lu); |
| if (r < 0 || lu < 10 || lu > 1000) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Block IO weight '%s' invalid. Ignoring.", rvalue); |
| return 0; |
| } |
| |
| |
| w = new0(CGroupBlockIODeviceWeight, 1); |
| if (!w) |
| return log_oom(); |
| |
| w->path = path; |
| path = NULL; |
| |
| w->weight = lu; |
| |
| LIST_PREPEND(device_weights, c->blockio_device_weights, w); |
| return 0; |
| } |
| |
| int config_parse_blockio_bandwidth( |
| 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 *path = NULL; |
| CGroupBlockIODeviceBandwidth *b; |
| CGroupContext *c = data; |
| const char *bandwidth; |
| off_t bytes; |
| bool read; |
| size_t n; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| |
| read = streq("BlockIOReadBandwidth", lvalue); |
| |
| if (isempty(rvalue)) { |
| CGroupBlockIODeviceBandwidth *next; |
| |
| LIST_FOREACH_SAFE (device_bandwidths, b, next, c->blockio_device_bandwidths) |
| if (b->read == read) |
| cgroup_context_free_blockio_device_bandwidth(c, b); |
| |
| return 0; |
| } |
| |
| n = strcspn(rvalue, WHITESPACE); |
| bandwidth = rvalue + n; |
| bandwidth += strspn(bandwidth, WHITESPACE); |
| |
| if (!*bandwidth) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Expected space separated pair of device node and bandwidth. Ignoring."); |
| return 0; |
| } |
| |
| path = strndup(rvalue, n); |
| if (!path) |
| return log_oom(); |
| |
| if (!path_startswith(path, "/dev")) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Invalid device node path '%s'. Ignoring.", path); |
| return 0; |
| } |
| |
| r = parse_bytes(bandwidth, &bytes); |
| if (r < 0 || bytes <= 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Block IO Bandwidth '%s' invalid. Ignoring.", rvalue); |
| return 0; |
| } |
| |
| b = new0(CGroupBlockIODeviceBandwidth, 1); |
| if (!b) |
| return log_oom(); |
| |
| b->path = path; |
| path = NULL; |
| b->bandwidth = (uint64_t) bytes; |
| b->read = read; |
| |
| LIST_PREPEND(device_bandwidths, c->blockio_device_bandwidths, b); |
| |
| return 0; |
| } |
| |
| DEFINE_CONFIG_PARSE_ENUM(config_parse_job_mode, job_mode, JobMode, "Failed to parse job mode"); |
| |
| int config_parse_job_mode_isolate( |
| 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) { |
| |
| JobMode *m = data; |
| int r; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| |
| r = parse_boolean(rvalue); |
| if (r < 0) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Failed to parse boolean, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| *m = r ? JOB_ISOLATE : JOB_REPLACE; |
| return 0; |
| } |
| |
| int config_parse_personality( |
| 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) { |
| |
| unsigned long *personality = data, p; |
| |
| assert(filename); |
| assert(lvalue); |
| assert(rvalue); |
| assert(personality); |
| |
| p = personality_from_string(rvalue); |
| if (p == 0xffffffffUL) { |
| log_syntax(unit, LOG_ERR, filename, line, EINVAL, |
| "Failed to parse personality, ignoring: %s", rvalue); |
| return 0; |
| } |
| |
| *personality = p; |
| 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 = basename(*filename); |
| |
| if (unit_name_is_valid(name, TEMPLATE_VALID)) { |
| |
| id = set_get(names, name); |
| if (!id) { |
| id = strdup(name); |
| if (!id) |
| return -ENOMEM; |
| |
| r = set_consume(names, id); |
| if (r < 0) |
| return r; |
| } |
| } |
| |
| /* Try to open the file name, but don't if its a symlink */ |
| fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); |
| if (fd >= 0) |
| break; |
| |
| if (errno != ELOOP) |
| return -errno; |
| |
| /* Hmm, so this is a symlink. Let's read the name, and follow it manually */ |
| r = readlink_and_make_absolute(*filename, &target); |
| if (r < 0) |
| return r; |
| |
| free(*filename); |
| *filename = target; |
| } |
| |
| f = fdopen(fd, "re"); |
| if (!f) { |
| 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 */ |
| r = unit_merge_by_name(*u, k); |
| if (r < 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) { |
| r = unit_merge(other, *u); |
| if (r >= 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; |
| _cleanup_set_free_free_ Set *symlink_names = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| _cleanup_free_ char *filename = NULL; |
| char *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)) { |
| |
| filename = strdup(path); |
| if (!filename) |
| return -ENOMEM; |
| |
| r = open_follow(&filename, &f, symlink_names, &id); |
| if (r < 0) { |
| free(filename); |
| filename = NULL; |
| |
| if (r != -ENOENT) |
| return r; |
| } |
| |
| } 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 */ |
| filename = path_make_absolute(path, *p); |
| if (!filename) |
| return -ENOMEM; |
| |
| 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) { |
| free(filename); |
| filename = NULL; |
| |
| if (r != -ENOENT) |
| return r; |
| |
| /* Empty the symlink names for the next run */ |
| set_clear_free(symlink_names); |
| continue; |
| } |
| |
| break; |
| } |
| } |
| |
| if (!filename) |
| /* Hmm, no suitable file found? */ |
| return 0; |
| |
| merged = u; |
| r = merge_by_names(&merged, symlink_names, id); |
| if (r < 0) |
| return r; |
| |
| if (merged != u) { |
| u->load_state = UNIT_MERGED; |
| return 0; |
| } |
| |
| if (fstat(fileno(f), &st) < 0) |
| return -errno; |
| |
| if (null_or_empty(&st)) |
| u->load_state = UNIT_MASKED; |
| else { |
| u->load_state = UNIT_LOADED; |
| |
| /* Now, parse the file contents */ |
| r = config_parse(u->id, filename, f, UNIT_VTABLE(u)->sections, |
| config_item_perf_lookup, |
| (void*) load_fragment_gperf_lookup, false, true, u); |
| if (r < 0) |
| return r; |
| } |
| |
| free(u->fragment_path); |
| u->fragment_path = filename; |
| filename = NULL; |
| |
| u->fragment_mtime = timespec_load(&st.st_mtim); |
| |
| if (u->source_path) { |
| if (stat(u->source_path, &st) >= 0) |
| u->source_mtime = timespec_load(&st.st_mtim); |
| else |
| u->source_mtime = 0; |
| } |
| |
| return 0; |
| } |
| |
| 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 */ |
| r = load_from_path(u, u->id); |
| if (r < 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; |
| |
| r = load_from_path(u, t); |
| if (r < 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) { |
| |
| r = load_from_path(u, u->fragment_path); |
| if (r < 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) { |
| _cleanup_free_ char *k; |
| |
| k = unit_name_template(u->id); |
| if (!k) |
| return -ENOMEM; |
| |
| r = load_from_path(u, k); |
| if (r < 0) |
| return r; |
| |
| if (u->load_state == UNIT_STUB) |
| SET_FOREACH(t, u->names, i) { |
| _cleanup_free_ char *z = NULL; |
| |
| if (t == u->id) |
| continue; |
| |
| z = unit_name_template(t); |
| if (!z) |
| return -ENOMEM; |
| |
| r = load_from_path(u, z); |
| 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[] = { |
| #if !defined(HAVE_SYSV_COMPAT) || !defined(HAVE_SECCOMP) || !defined(HAVE_LIBWRAP) || !defined(HAVE_PAM) || !defined(HAVE_SELINUX) || !defined(HAVE_SMACK) |
| { config_parse_warn_compat, "NOTSUPPORTED" }, |
| #endif |
| { 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_bounding_set, "BOUNDINGSET" }, |
| { config_parse_limit, "LIMIT" }, |
| { config_parse_unit_deps, "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" }, |
| #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_sec, "SECONDS" }, |
| { config_parse_nsec, "NANOSECONDS" }, |
| { config_parse_path_strv, "PATH [...]" }, |
| { config_parse_unit_requires_mounts_for, "PATH [...]" }, |
| { config_parse_exec_mount_flags, "MOUNTFLAG [...]" }, |
| { config_parse_unit_string_printf, "STRING" }, |
| { config_parse_trigger_unit, "UNIT" }, |
| { config_parse_timer, "TIMER" }, |
| { config_parse_path_spec, "PATH" }, |
| { 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" }, |
| { config_parse_unit_slice, "SLICE" }, |
| { config_parse_documentation, "URL" }, |
| { config_parse_service_timeout, "SECONDS" }, |
| { config_parse_start_limit_action, "ACTION" }, |
| { config_parse_set_status, "STATUS" }, |
| { config_parse_service_sockets, "SOCKETS" }, |
| { config_parse_environ, "ENVIRON" }, |
| #ifdef HAVE_SECCOMP |
| { config_parse_syscall_filter, "SYSCALLS" }, |
| { config_parse_syscall_archs, "ARCHS" }, |
| { config_parse_syscall_errno, "ERRNO" }, |
| #endif |
| { config_parse_cpu_shares, "SHARES" }, |
| { config_parse_memory_limit, "LIMIT" }, |
| { config_parse_device_allow, "DEVICE" }, |
| { config_parse_device_policy, "POLICY" }, |
| { config_parse_blockio_bandwidth, "BANDWIDTH" }, |
| { config_parse_blockio_weight, "WEIGHT" }, |
| { config_parse_blockio_device_weight, "DEVICEWEIGHT" }, |
| { config_parse_long, "LONG" }, |
| { config_parse_socket_service, "SERVICE" }, |
| #ifdef HAVE_SELINUX |
| { config_parse_exec_selinux_context, "LABEL" }, |
| #endif |
| { config_parse_job_mode, "MODE" }, |
| { config_parse_job_mode_isolate, "BOOLEAN" }, |
| }; |
| |
| 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 || !strneq(prev, i, prefix_len+1)) { |
| 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; |
| } |
| } |