diff options
author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-06-01 15:52:09 -0400 |
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committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-06-01 15:52:09 -0400 |
commit | bb110bc7433adeb79b4814ef2a1c04e2160be396 (patch) | |
tree | c45048907133b8bbd7e2d86b350436a9ad0ffe8b /src/systemd-nspawn/nspawn-settings.c | |
parent | 192d82912f055a2b4a2b5c02f0ef69b002322bba (diff) |
./move.sh
Diffstat (limited to 'src/systemd-nspawn/nspawn-settings.c')
-rw-r--r-- | src/systemd-nspawn/nspawn-settings.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/src/systemd-nspawn/nspawn-settings.c b/src/systemd-nspawn/nspawn-settings.c new file mode 100644 index 0000000000..4fb0054698 --- /dev/null +++ b/src/systemd-nspawn/nspawn-settings.c @@ -0,0 +1,394 @@ +/*** + This file is part of systemd. + + Copyright 2015 Lennart Poettering + + 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 "alloc-util.h" +#include "cap-list.h" +#include "conf-parser.h" +#include "nspawn-network.h" +#include "nspawn-settings.h" +#include "parse-util.h" +#include "process-util.h" +#include "strv.h" +#include "util.h" + +int settings_load(FILE *f, const char *path, Settings **ret) { + _cleanup_(settings_freep) Settings *s = NULL; + int r; + + assert(path); + assert(ret); + + s = new0(Settings, 1); + if (!s) + return -ENOMEM; + + s->start_mode = _START_MODE_INVALID; + s->personality = PERSONALITY_INVALID; + + s->read_only = -1; + s->volatile_mode = _VOLATILE_MODE_INVALID; + + s->private_network = -1; + s->network_veth = -1; + + r = config_parse(NULL, path, f, + "Exec\0" + "Network\0" + "Files\0", + config_item_perf_lookup, nspawn_gperf_lookup, + false, + false, + true, + s); + if (r < 0) + return r; + + *ret = s; + s = NULL; + + return 0; +} + +Settings* settings_free(Settings *s) { + + if (!s) + return NULL; + + strv_free(s->parameters); + strv_free(s->environment); + free(s->user); + free(s->working_directory); + + strv_free(s->network_interfaces); + strv_free(s->network_macvlan); + strv_free(s->network_ipvlan); + strv_free(s->network_veth_extra); + free(s->network_bridge); + expose_port_free_all(s->expose_ports); + + custom_mount_free_all(s->custom_mounts, s->n_custom_mounts); + free(s); + + return NULL; +} + +bool settings_private_network(Settings *s) { + assert(s); + + return + s->private_network > 0 || + s->network_veth > 0 || + s->network_bridge || + s->network_interfaces || + s->network_macvlan || + s->network_ipvlan || + s->network_veth_extra; +} + +bool settings_network_veth(Settings *s) { + assert(s); + + return + s->network_veth > 0 || + s->network_bridge; +} + +DEFINE_CONFIG_PARSE_ENUM(config_parse_volatile_mode, volatile_mode, VolatileMode, "Failed to parse volatile mode"); + +int config_parse_expose_port( + 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) { + + Settings *s = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = expose_port_parse(&s->expose_ports, rvalue); + if (r == -EEXIST) { + log_syntax(unit, LOG_ERR, filename, line, r, "Duplicate port specification, ignoring: %s", rvalue); + return 0; + } + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse host port %s: %m", rvalue); + return 0; + } + + return 0; +} + +int config_parse_capability( + 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 u = 0, *result = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + for (;;) { + _cleanup_free_ char *word = NULL; + int cap; + + r = extract_first_word(&rvalue, &word, NULL, 0); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract capability string, ignoring: %s", rvalue); + return 0; + } + if (r == 0) + break; + + cap = capability_from_name(word); + if (cap < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse capability, ignoring: %s", word); + continue; + } + + u |= 1 << ((uint64_t) cap); + } + + if (u == 0) + return 0; + + *result |= u; + return 0; +} + +int config_parse_id128( + 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) { + + sd_id128_t t, *result = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = sd_id128_from_string(rvalue, &t); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse 128bit ID/UUID, ignoring: %s", rvalue); + return 0; + } + + *result = t; + return 0; +} + +int config_parse_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) { + + Settings *settings = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = bind_mount_parse(&settings->custom_mounts, &settings->n_custom_mounts, rvalue, ltype); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid bind mount specification %s: %m", rvalue); + return 0; + } + + return 0; +} + +int config_parse_tmpfs( + 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) { + + Settings *settings = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = tmpfs_mount_parse(&settings->custom_mounts, &settings->n_custom_mounts, rvalue); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid temporary file system specification %s: %m", rvalue); + return 0; + } + + return 0; +} + +int config_parse_veth_extra( + 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) { + + Settings *settings = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = veth_extra_parse(&settings->network_veth_extra, rvalue); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid extra virtual Ethernet link specification %s: %m", rvalue); + return 0; + } + + return 0; +} + +int config_parse_boot( + 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) { + + Settings *settings = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = parse_boolean(rvalue); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse Boot= parameter %s, ignoring: %m", rvalue); + return 0; + } + + if (r > 0) { + if (settings->start_mode == START_PID2) + goto conflict; + + settings->start_mode = START_BOOT; + } else { + if (settings->start_mode == START_BOOT) + goto conflict; + + if (settings->start_mode < 0) + settings->start_mode = START_PID1; + } + + return 0; + +conflict: + log_syntax(unit, LOG_ERR, filename, line, r, "Conflicting Boot= or ProcessTwo= setting found. Ignoring."); + return 0; +} + +int config_parse_pid2( + 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) { + + Settings *settings = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = parse_boolean(rvalue); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse ProcessTwo= parameter %s, ignoring: %m", rvalue); + return 0; + } + + if (r > 0) { + if (settings->start_mode == START_BOOT) + goto conflict; + + settings->start_mode = START_PID2; + } else { + if (settings->start_mode == START_PID2) + goto conflict; + + if (settings->start_mode < 0) + settings->start_mode = START_PID1; + } + + return 0; + +conflict: + log_syntax(unit, LOG_ERR, filename, line, r, "Conflicting Boot= or ProcessTwo= setting found. Ignoring."); + return 0; +} |