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config.c
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config.c
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/*
* Copyright (c) 2017-2024 Pantacor Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <sys/stat.h>
#include <linux/limits.h>
#include "config.h"
#include "init.h"
#include "config_parser.h"
#include "bootloader.h"
#include "state.h"
#include "storage.h"
#include "paths.h"
#include "parser/parser.h"
#include "utils/fs.h"
#include "utils/str.h"
#include "utils/math.h"
#include "utils/json.h"
#define MODULE_NAME "config"
#define pv_log(level, msg, ...) vlog(MODULE_NAME, level, msg, ##__VA_ARGS__)
#include "log.h"
typedef enum {
BOOL,
BOOTLOADER,
INIT_MODE,
INT,
LOG_SERVER_OUTPUT_UPDATE_MASK,
SB_MODE,
STR,
WDT_MODE
} type_t;
typedef enum {
DEFAULT = 0,
ARGS = 1 << 0,
PV_CONF = 1 << 1,
PH_CONF = 1 << 2,
PH_CLIENT = 1 << 3,
POLICY = 1 << 4,
PV_CMDLINE = 1 << 5,
PH_CMDLINE = 1 << 6,
ENV = 1 << 7,
OEM = 1 << 8,
META = 1 << 9,
CMD = 1 << 10
} level_t;
#define PV PV_CONF | POLICY | PV_CMDLINE | ENV
#define PH PH_CONF | POLICY | PH_CMDLINE | ENV
#define RUN META | CMD
#define LEVEL_SYSCTL PV | OEM
// default list
#define CACHE_DEVMETADIR_DEF "/storage/cache/devmeta"
#define CACHE_USRMETADIR_DEF "/storage/cache/meta"
#define CREDS_HOST_DEF "192.168.53.1"
#define CREDS_TYPE_DEF "builtin"
#define DISK_EXPORTSDIR_DEF "/exports"
#define DISK_VOLDIR_DEF "/volumes"
#define DISK_WRITABLEDIR_DEF "/writable"
#define DROPBEAR_CACHE_DIR_DEF "/storage/cache/dropbear"
#define LIBTHTTP_CERTSDIR_DEF "/certs"
#define LOG_DIR_DEF "/storage/logs/"
#define LOG_MAXSIZE_DEF (1 << 21) // 2MiB
#define LOG_SERVER_OUTPUTS_DEF "filetree"
#define NET_BRADDRESS4_DEF "10.0.3.1"
#define NET_BRDEV_DEF "lxcbr0"
#define NET_BRMASK4_DEF "255.255.255.0"
#define SECUREBOOT_OEM_TRUSTSTORE_DEF PVS_CERT_DEFAULT_OEM_STORE
#define SECUREBOOT_TRUSTSTORE_DEF PVS_CERT_DEFAULT_STORE
#define SYSTEM_CONFDIR_DEF "/configs"
#define SYSTEM_ETCDIR_DEF "/etc"
#define SYSTEM_LIBDIR_DEF "/lib"
#define SYSTEM_MEDIADIR_DEF "/media"
#define SYSTEM_RUNDIR_DEF "/pv"
#define SYSTEM_USRDIR_DEF "/usr"
struct pv_config_entry {
type_t type;
const char *key;
level_t allowed;
level_t modified;
struct {
bool b;
int i;
char *s;
} value;
};
// configuration lookup table
static struct pv_config_entry entries[] = {
{ STR, "PH_CREDS_HOST", PH | OEM, 0, .value.s = CREDS_HOST_DEF },
{ STR, "PH_CREDS_ID", PH | OEM, 0, .value.s = NULL },
{ INT, "PH_CREDS_PORT", PH | OEM, 0, .value.i = 12365 },
{ STR, "PH_CREDS_PROXY_HOST", PH | OEM, 0, .value.s = NULL },
{ INT, "PH_CREDS_PROXY_NOPROXYCONNECT", PH | OEM, 0, .value.i = 0 },
{ INT, "PH_CREDS_PROXY_PORT", PH | OEM, 0, .value.i = 3218 },
{ STR, "PH_CREDS_PRN", PH | OEM, 0, .value.s = NULL },
{ STR, "PH_CREDS_SECRET", PH | OEM, 0, .value.s = NULL },
{ STR, "PH_CREDS_TYPE", PH | OEM, 0, .value.s = CREDS_TYPE_DEF },
{ STR, "PH_FACTORY_AUTOTOK", PH | OEM, 0, .value.s = NULL },
{ INT, "PH_METADATA_DEVMETA_INTERVAL", PH | OEM | RUN, 0,
.value.i = 10 },
{ INT, "PH_METADATA_USRMETA_INTERVAL", PH | OEM | RUN, 0,
.value.i = 5 },
{ INT, "PH_UPDATER_INTERVAL", PH | OEM | RUN, 0, .value.i = 60 },
{ INT, "PH_UPDATER_NETWORK_TIMEOUT", PH | OEM | RUN, 0,
.value.i = 120 },
{ STR, "PV_BOOTLOADER_FITCONFIG", PV, 0, .value.s = NULL },
{ STR, "PV_BOOTLOADER_MTD_ENV", PV, 0, .value.s = NULL },
{ BOOL, "PV_BOOTLOADER_MTD_ONLY", PV, 0, .value.b = false },
{ BOOTLOADER, "PV_BOOTLOADER_TYPE", PV, 0, .value.i = BL_UBOOT_PLAIN },
{ STR, "PV_CACHE_DEVMETADIR", PV, 0, .value.s = CACHE_DEVMETADIR_DEF },
{ STR, "PV_CACHE_USRMETADIR", PV, 0, .value.s = CACHE_USRMETADIR_DEF },
{ BOOL, "PV_CONTROL_REMOTE", PV | OEM, 0, .value.b = true },
{ BOOL, "PV_CONTROL_REMOTE_ALWAYS", PV | OEM, 0, .value.b = false },
{ BOOL, "PV_DEBUG_SHELL", PV, 0, .value.b = true },
{ BOOL, "PV_DEBUG_SHELL_AUTOLOGIN", PV, 0, .value.b = false },
{ BOOL, "PV_DEBUG_SSH", PV | OEM | RUN, 0, .value.b = true },
{ STR, "PV_DEBUG_SSH_AUTHORIZED_KEYS", PV | OEM | RUN, 0,
.value.s = NULL },
{ STR, "PV_DISK_EXPORTSDIR", PV, 0, .value.s = DISK_EXPORTSDIR_DEF },
{ STR, "PV_DISK_VOLDIR", PV, 0, .value.s = DISK_VOLDIR_DEF },
{ STR, "PV_DISK_WRITABLEDIR", PV, 0, .value.s = DISK_WRITABLEDIR_DEF },
{ STR, "PV_DROPBEAR_CACHE_DIR", PV, 0,
.value.s = DROPBEAR_CACHE_DIR_DEF },
{ STR, "PV_LIBTHTTP_CERTSDIR", PV, 0,
.value.s = LIBTHTTP_CERTSDIR_DEF },
{ INT, "PV_LIBTHTTP_LOG_LEVEL", PV | OEM | RUN, 0, .value.i = 3 },
{ BOOL, "PV_LOG_CAPTURE", PV | OEM, 0, .value.b = true },
{ BOOL, "PV_LOG_CAPTURE_DMESG", PV | OEM, 0, .value.b = true },
{ INT, "PV_LOG_BUF_NITEMS", PV | OEM, 0, .value.i = 128 },
{ STR, "PV_LOG_DIR", PV, 0, .value.s = LOG_DIR_DEF },
{ STR, "PV_LOG_FILETREE_TIMESTAMP_FORMAT", PV | OEM | RUN, 0,
.value.s = NULL },
{ INT, "PV_LOG_LEVEL", PV | OEM | RUN, 0, .value.i = 0 },
{ BOOL, "PV_LOG_LOGGERS", PV | OEM, 0, .value.b = true },
{ INT, "PV_LOG_MAXSIZE", PV | OEM | RUN, 0,
.value.i = LOG_MAXSIZE_DEF },
{ BOOL, "PV_LOG_PUSH", PV | OEM | RUN, 0, .value.b = true },
{ LOG_SERVER_OUTPUT_UPDATE_MASK, "PV_LOG_SERVER_OUTPUTS",
PV | OEM | RUN, 0,
.value.i = LOG_SERVER_OUTPUT_FILE_TREE | LOG_SERVER_OUTPUT_UPDATE },
{ STR, "PV_LOG_SINGLEFILE_TIMESTAMP_FORMAT", PV | OEM | RUN, 0,
.value.s = NULL },
{ STR, "PV_LOG_STDOUT_TIMESTAMP_FORMAT", PV | OEM | RUN, 0,
.value.s = NULL },
{ INT, "PV_LXC_LOG_LEVEL", PV | OEM, 0, .value.i = 2 },
{ STR, "PV_NET_BRADDRESS4", PV | OEM, 0,
.value.s = NET_BRADDRESS4_DEF },
{ STR, "PV_NET_BRDEV", PV | OEM, 0, .value.s = NET_BRDEV_DEF },
{ STR, "PV_NET_BRMASK4", PV | OEM, 0, .value.s = NET_BRMASK4_DEF },
{ STR, "PV_OEM_NAME", PV, 0, .value.s = NULL },
{ STR, "PV_POLICY", PV, 0, .value.s = NULL },
{ INT, "PV_REVISION_RETRIES", PV | OEM | RUN, 0, .value.i = 10 },
{ BOOL, "PV_SECUREBOOT_CHECKSUM", PV, 0, .value.b = true },
{ BOOL, "PV_SECUREBOOT_HANDLERS", PV, 0, .value.b = true },
{ SB_MODE, "PV_SECUREBOOT_MODE", PV, 0, .value.i = SB_LENIENT },
{ STR, "PV_SECUREBOOT_OEM_TRUSTORE", PV, 0,
.value.s = SECUREBOOT_OEM_TRUSTSTORE_DEF },
{ STR, "PV_SECUREBOOT_TRUSTSTORE", PV, 0,
.value.s = SECUREBOOT_TRUSTSTORE_DEF },
{ STR, "PV_STORAGE_DEVICE", PV, 0, .value.s = NULL },
{ STR, "PV_STORAGE_FSTYPE", PV, 0, .value.s = NULL },
{ BOOL, "PV_STORAGE_GC_KEEP_FACTORY", PV | OEM | RUN, 0,
.value.b = false },
{ INT, "PV_STORAGE_GC_RESERVED", PV | OEM | RUN, 0, .value.i = 5 },
{ INT, "PV_STORAGE_GC_THRESHOLD_DEFERTIME", PV | OEM | RUN, 0,
.value.i = 600 },
{ INT, "PV_STORAGE_GC_THRESHOLD", PV | OEM | RUN, 0, .value.i = 0 },
{ STR, "PV_STORAGE_LOGTEMPSIZE", PV, 0, .value.s = NULL },
{ STR, "PV_STORAGE_MNTPOINT", PV, 0, .value.s = NULL },
{ STR, "PV_STORAGE_MNTTYPE", PV, 0, .value.s = NULL },
{ INT, "PV_STORAGE_WAIT", PV, 0, .value.i = 5 },
{ STR, "PV_SYSTEM_APPARMOR_PROFILES", PV, 0, .value.s = NULL },
{ STR, "PV_SYSTEM_CONFDIR", PV, 0, .value.s = SYSTEM_CONFDIR_DEF },
{ BOOL, "PV_SYSTEM_DRIVERS_LOAD_EARLY_AUTO", PV, 0, .value.b = false },
{ STR, "PV_SYSTEM_ETCDIR", PV, 0, .value.s = SYSTEM_ETCDIR_DEF },
{ INIT_MODE, "PV_SYSTEM_INIT_MODE", PV, 0, .value.i = IM_EMBEDDED },
{ STR, "PV_SYSTEM_LIBDIR", PV, 0, .value.s = SYSTEM_LIBDIR_DEF },
{ STR, "PV_SYSTEM_MEDIADIR", PV, 0, .value.s = SYSTEM_MEDIADIR_DEF },
{ BOOL, "PV_SYSTEM_MOUNT_SECURITYFS", PV, 0, .value.b = false },
{ STR, "PV_SYSTEM_RUNDIR", PV, 0, .value.s = SYSTEM_RUNDIR_DEF },
{ STR, "PV_SYSTEM_USRDIR", PV, 0, .value.s = SYSTEM_USRDIR_DEF },
{ INT, "PV_UPDATER_COMMIT_DELAY", PV | OEM | RUN, 0, .value.i = 25 },
{ INT, "PV_UPDATER_GOALS_TIMEOUT", PV | OEM | RUN, 0, .value.i = 120 },
{ BOOL, "PV_UPDATER_USE_TMP_OBJECTS", PV | OEM | RUN, 0,
.value.b = false },
{ WDT_MODE, "PV_WDT_MODE", PV, 0, .value.i = WDT_SHUTDOWN },
{ INT, "PV_WDT_TIMEOUT", PV, 0, .value.i = 15 }
};
struct pv_config_alias {
char *alias;
char *key;
};
static struct pv_config_alias aliases[] = {
// LEGACY CONFIG KEY
{ "creds.host", "PH_CREDS_HOST" },
{ "creds.id", "PH_CREDS_ID" },
{ "creds.port", "PH_CREDS_PORT" },
{ "creds.proxy.host", "PH_CREDS_PROXY_HOST" },
{ "creds.proxy.noproxyconnect", "PH_CREDS_PROXY_NOPROXYCONNECT" },
{ "creds.proxy.port", "PH_CREDS_PROXY_PORT" },
{ "creds.prn", "PH_CREDS_PRN" },
{ "creds.secret", "PH_CREDS_SECRET" },
{ "creds.type", "PH_CREDS_TYPE" },
{ "factory.autotok", "PH_FACTORY_AUTOTOK" },
{ "metadata.devmeta.interval", "PH_METADATA_DEVMETA_INTERVAL" },
{ "metadata.usrmeta.interval", "PH_METADATA_USRMETA_INTERVAL" },
{ "updater.interval", "PH_UPDATER_INTERVAL" },
{ "updater.network_timeout", "PH_UPDATER_NETWORK_TIMEOUT" },
{ "bootloader.fitconfig", "PV_BOOTLOADER_FITCONFIG" },
{ "bootloader.mtd_env", "PV_BOOTLOADER_MTD_ENV" },
{ "bootloader.mtd_only", "PV_BOOTLOADER_MTD_ONLY" },
{ "bootloader.type", "PV_BOOTLOADER_TYPE" },
{ "cache.devmetadir", "PV_CACHE_DEVMETADIR" },
{ "cache.usrmetadir", "PV_CACHE_USRMETADIR" },
{ "control.remote", "PV_CONTROL_REMOTE" },
{ "control.remote.always", "PV_CONTROL_REMOTE_ALWAYS" },
{ "debug.shell", "PV_DEBUG_SHELL" },
{ "debug.shell.autologin", "PV_DEBUG_SHELL_AUTOLOGIN" },
{ "debug.ssh", "PV_DEBUG_SSH" },
{ "debug.ssh_authorized_keys", "PV_DEBUG_SSH_AUTHORIZED_KEYS" },
{ "disk.exportsdir", "PV_DISK_EXPORTSDIR" },
{ "disk.voldir", "PV_DISK_VOLDIR" },
{ "disk.writabledir", "PV_DISK_WRITABLEDIR" },
{ "dropbear.cache.dir", "PV_DROPBEAR_CACHE_DIR" },
{ "libthttp.certdir", "PV_LIBTHTTP_CERTSDIR" },
{ "libthttp.log.level", "PV_LIBTHTTP_LOG_LEVEL" },
{ "log.capture", "PV_LOG_CAPTURE" },
{ "log.capture.dmesg", "PV_LOG_CAPTURE_DMESG" },
{ "log.buf_nitems", "PV_LOG_BUF_NITEMS" },
{ "log.dir", "PV_LOG_DIR" },
{ "log.filetree.timestamp.format", "PV_LOG_FILETREE_TIMESTAMP_FORMAT" },
{ "log.level", "PV_LOG_LEVEL" },
{ "log.loggers", "PV_LOG_LOGGERS" },
{ "log.maxsize", "PV_LOG_MAXSIZE" },
{ "log.push", "PV_LOG_PUSH" },
{ "log.server.outputs", "PV_LOG_SERVER_OUTPUTS" },
{ "log.singlefile.timestamp.format",
"PV_LOG_SINGLEFILE_TIMESTAMP_FORMAT" },
{ "log.stdout.timestamp.format", "PV_LOG_STDOUT_TIMESTAMP_FORMAT" },
{ "lxc.log.level", "PV_LXC_LOG_LEVEL" },
{ "net.braddress4", "PV_NET_BRADDRESS4" },
{ "net.brdev", "PV_NET_BRDEV" },
{ "net.brmask4", "PV_NET_BRMASK4" },
{ "policy", "PV_POLICY" },
{ "revision.retries", "PV_REVISION_RETRIES" },
{ "secureboot.checksum", "PV_SECUREBOOT_CHECKSUM" },
{ "secureboot.handlers", "PV_SECUREBOOT_HANDLERS" },
{ "secureboot.mode", "PV_SECUREBOOT_MODE" },
{ "secureboot.truststore", "PV_SECUREBOOT_TRUSTSTORE" },
{ "storage.device", "PV_STORAGE_DEVICE" },
{ "storage.fstype", "PV_STORAGE_FSTYPE" },
{ "storage.gc.keep_factory", "PV_STORAGE_GC_KEEP_FACTORY" },
{ "storage.gc.reserved", "PV_STORAGE_GC_RESERVED" },
{ "storage.gc.threshold.defertime",
"PV_STORAGE_GC_THRESHOLD_DEFERTIME" },
{ "storage.gc.threshold", "PV_STORAGE_GC_THRESHOLD" },
{ "storage.logtempsize", "PV_STORAGE_LOGTEMPSIZE" },
{ "storage.mntpoint", "PV_STORAGE_MNTPOINT" },
{ "storage.mnttype", "PV_STORAGE_MNTTYPE" },
{ "storage.wait", "PV_STORAGE_WAIT" },
{ "system.apparmor.profiles", "PV_SYSTEM_APPARMOR_PROFILES" },
{ "system.confdir", "PV_SYSTEM_CONFDIR" },
{ "system.drivers.load_early.auto",
"PV_SYSTEM_DRIVERS_LOAD_EARLY_AUTO" },
{ "system.etcdir", "PV_SYSTEM_ETCDIR" },
{ "system.init.mode", "PV_SYSTEM_INIT_MODE" },
{ "system.libdir", "PV_SYSTEM_LIBDIR" },
{ "system.mediadir", "PV_SYSTEM_MEDIADIR" },
{ "system.mount.securityfs", "PV_SYSTEM_MOUNT_SECURITYFS" },
{ "system.rundir", "PV_SYSTEM_RUNDIR" },
{ "system.usrdir", "PV_SYSTEM_USRDIR" },
{ "updater.commit.delay", "PV_UPDATER_COMMIT_DELAY" },
{ "updater.goals.timeout", "PV_UPDATER_GOALS_TIMEOUT" },
{ "updater.use_tmp_objects", "PV_UPDATER_USE_TMP_OBJECTS" },
{ "wdt.mode", "PV_WDT_MODE" },
{ "wdt.timeout", "PV_WDT_TIMEOUT" },
// OTHER COMPATIBLE KEYS
{ "meta.cache.dir", "PV_CACHE_USRMETADIR" },
{ "pantahub.log.push", "PV_LOG_PUSH" },
{ "updater.keep_factory", "PV_STORAGE_GC_KEEP_FACTORY" }
};
bool pv_config_get_bool(config_index_t ci)
{
return entries[ci].value.b;
}
static void _set_config_by_entry_bool(struct pv_config_entry *entry, bool value)
{
if (!entry)
return;
entry->value.b = value;
}
static void _set_config_by_index_bool(config_index_t ci, bool value,
level_t modified)
{
entries[ci].modified = modified;
_set_config_by_entry_bool(&entries[ci], value);
}
int pv_config_get_int(config_index_t ci)
{
return entries[ci].value.i;
}
static void _set_config_by_entry_int(struct pv_config_entry *entry, int value)
{
if (!entry)
return;
entry->value.i = value;
}
char *pv_config_get_str(config_index_t ci)
{
return entries[ci].value.s;
}
static void _set_config_by_entry_str(struct pv_config_entry *entry,
const char *value)
{
if (!entry)
return;
if (entry->value.s)
free(entry->value.s);
entry->value.s = strdup(value);
}
static void _set_config_by_index_str(config_index_t ci, const char *value,
level_t modified)
{
entries[ci].modified = modified;
_set_config_by_entry_str(&entries[ci], value);
}
bootloader_t pv_config_get_bootloader_type()
{
return pv_config_get_int(PV_BOOTLOADER_TYPE);
}
static char *_get_bootloader_type_str(bootloader_t type)
{
switch (type) {
case BL_UBOOT_PLAIN:
return "uboot";
case BL_UBOOT_PVK:
return "uboot-pvk";
case BL_GRUB:
return "grub";
case BL_RPIAB:
return "rpiab";
default:
return "unknown";
}
}
char *pv_config_get_bootloader_type_str(void)
{
return _get_bootloader_type_str(pv_config_get_bootloader_type());
}
static void _set_config_by_entry_bootloader_type(struct pv_config_entry *entry,
const char *value)
{
if (!entry)
return;
if (pv_str_matches(value, strlen(value), "uboot", strlen("uboot")))
entry->value.i = BL_UBOOT_PLAIN;
else if (pv_str_matches(value, strlen(value), "uboot-pvk",
strlen("uboot-pvk")))
entry->value.i = BL_UBOOT_PVK;
else if (pv_str_matches(value, strlen(value), "grub", strlen("grub")))
entry->value.i = BL_GRUB;
else if (pv_str_matches(value, strlen(value), "rpiab", strlen("rpiab")))
entry->value.i = BL_RPIAB;
else
pv_log(WARN, "unknown bootloader type '%s'", value);
}
void pv_config_set_creds_id(char *id)
{
_set_config_by_index_str(PH_CREDS_ID, id, PH_CLIENT);
}
void pv_config_set_creds_prn(char *prn)
{
_set_config_by_index_str(PH_CREDS_PRN, prn, PH_CLIENT);
}
void pv_config_set_creds_secret(char *secret)
{
_set_config_by_index_str(PH_CREDS_SECRET, secret, PH_CLIENT);
}
void pv_config_set_debug_shell(bool shell)
{
_set_config_by_index_bool(PV_DEBUG_SHELL, shell, ARGS);
}
void pv_config_set_debug_shell_autologin(bool shell)
{
_set_config_by_index_bool(PV_DEBUG_SHELL_AUTOLOGIN, shell, ARGS);
}
void pv_config_set_debug_ssh(bool ssh)
{
_set_config_by_index_bool(PV_DEBUG_SSH, ssh, ARGS);
}
log_server_output_mask_t pv_config_get_log_server_outputs()
{
return pv_config_get_int(PV_LOG_SERVER_OUTPUTS);
}
static void
_set_config_by_entry_log_server_outputs(struct pv_config_entry *entry,
const char *value)
{
if (!entry)
return;
char *token, *tmp;
int server_outputs = 0;
char *val = strdup(value);
for (token = strtok_r(val, ",", &tmp); token;
token = strtok_r(NULL, ",", &tmp)) {
if (pv_str_matches(token, strlen(token), "singlefile",
strlen("singlefile")))
server_outputs |= LOG_SERVER_OUTPUT_SINGLE_FILE;
else if (pv_str_matches(token, strlen(token), "filetree",
strlen("filetree")))
server_outputs |= LOG_SERVER_OUTPUT_FILE_TREE;
else if (pv_str_matches(token, strlen(token), "nullsink",
strlen("nullsink")))
server_outputs |= LOG_SERVER_OUTPUT_NULL_SINK;
else if (pv_str_matches(token, strlen(token), "stdout_direct",
strlen("stdout_direct")))
server_outputs |= LOG_SERVER_OUTPUT_STDOUT_DIRECT;
else if (pv_str_matches(token, strlen(token),
"stdout.containers",
strlen("stdout.containers")))
server_outputs |= LOG_SERVER_OUTPUT_STDOUT_CONTAINERS;
else if (pv_str_matches(token, strlen(token),
"stdout.pantavisor",
strlen("stdout.pantavisor")))
server_outputs |= LOG_SERVER_OUTPUT_STDOUT_PANTAVISOR;
else if (pv_str_matches(token, strlen(token), "stdout",
strlen("stdout")))
server_outputs |= LOG_SERVER_OUTPUT_STDOUT;
else
pv_log(WARN, "unknown log server output '%s'", token);
}
free(val);
server_outputs |= LOG_SERVER_OUTPUT_UPDATE;
entry->value.i = server_outputs;
}
secureboot_mode_t pv_config_get_secureboot_mode()
{
return pv_config_get_int(PV_SECUREBOOT_MODE);
}
static char *_get_secureboot_mode_str(secureboot_mode_t mode)
{
switch (mode) {
case SB_DISABLED:
return "disabled";
case SB_AUDIT:
return "audit";
case SB_LENIENT:
return "lenient";
case SB_STRICT:
return "strict";
default:
return "unknown";
}
}
char *pv_config_get_secureboot_mode_str(void)
{
return _get_secureboot_mode_str(pv_config_get_secureboot_mode());
}
static void _set_config_by_entry_secureboot_mode(struct pv_config_entry *entry,
const char *value)
{
if (!entry)
return;
if (pv_str_matches(value, strlen(value), "disabled",
strlen("disabled")))
entry->value.i = SB_DISABLED;
else if (pv_str_matches(value, strlen(value), "audit", strlen("audit")))
entry->value.i = SB_AUDIT;
else if (pv_str_matches(value, strlen(value), "lenient",
strlen("lenient")))
entry->value.i = SB_LENIENT;
else if (pv_str_matches(value, strlen(value), "strict",
strlen("strict")))
entry->value.i = SB_STRICT;
else
pv_log(WARN, "unknown secureboot mode '%s'", value);
}
init_mode_t pv_config_get_system_init_mode()
{
return pv_config_get_int(PV_SYSTEM_INIT_MODE);
}
static char *_get_system_init_mode_str(init_mode_t mode)
{
switch (mode) {
case IM_EMBEDDED:
return "embedded";
case IM_STANDALONE:
return "standalone";
case IM_APPENGINE:
return "appengine";
default:
return "unknown";
}
}
char *pv_config_get_system_init_mode_str(void)
{
return _get_system_init_mode_str(pv_config_get_system_init_mode());
}
static void _set_config_by_entry_init_mode(struct pv_config_entry *entry,
const char *value)
{
if (!entry)
return;
if (pv_str_matches(value, strlen(value), "embedded",
strlen("embedded")))
entry->value.i = IM_EMBEDDED;
else if (pv_str_matches(value, strlen(value), "standalone",
strlen("standalone")))
entry->value.i = IM_STANDALONE;
else if (pv_str_matches(value, strlen(value), "appengine",
strlen("appengine")))
entry->value.i = IM_APPENGINE;
else
pv_log(WARN, "unknown system init mode '%s'", value);
}
void pv_config_set_system_init_mode(init_mode_t mode)
{
entries[PV_SYSTEM_INIT_MODE].value.i = mode;
entries[PV_SYSTEM_INIT_MODE].modified = ARGS;
}
wdt_mode_t pv_config_get_wdt_mode()
{
return pv_config_get_int(PV_WDT_MODE);
}
static char *_get_wdt_mode_str(wdt_mode_t mode)
{
switch (mode) {
case WDT_DISABLED:
return "disabled";
case WDT_SHUTDOWN:
return "shutdown";
case WDT_STARTUP:
return "startup";
case WDT_ALWAYS:
return "always";
default:
return "unknown";
}
}
char *pv_config_get_wdt_mode_str(void)
{
return _get_wdt_mode_str(pv_config_get_wdt_mode());
}
static void _set_config_by_entry_wdt_mode(struct pv_config_entry *entry,
const char *value)
{
if (!entry)
return;
if (pv_str_matches(value, strlen(value), "disabled",
strlen("disabled")))
entry->value.i = WDT_DISABLED;
else if (pv_str_matches(value, strlen(value), "shutdown",
strlen("shutdown")))
entry->value.i = WDT_SHUTDOWN;
else if (pv_str_matches(value, strlen(value), "startup",
strlen("startup")))
entry->value.i = WDT_STARTUP;
else if (pv_str_matches(value, strlen(value), "always",
strlen("always")))
entry->value.i = WDT_ALWAYS;
else
pv_log(WARN, "unknown wdt mode '%s'", value);
}
static char *_get_value_policy(struct dl_list *config_list)
{
char *item = config_get_value(config_list, "PV_POLICY");
if (!item)
item = config_get_value(config_list, "policy");
if (!item || !strlen(item))
return NULL;
// policy does not allow paths
if (strchr(item, '/'))
return NULL;
return strdup(item);
}
static int _set_config_sysctl_by_key(const char *key, const char *value)
{
char *path = pv_config_parser_sysctl_key(key);
if (!path)
return 0;
int fd = open(path, O_WRONLY | O_SYNC);
if (fd < 0) {
pv_log(WARN, "cannot open '%s': %s", path, strerror(errno));
free(path);
return -1;
}
write(fd, value, strlen(value) + 1);
close(fd);
free(path);
return 1;
}
static int pv_config_load_policy(const char *policy,
struct dl_list *config_list)
{
char path[PATH_MAX];
if (!policy) {
pv_log(DEBUG, "policy not set");
return 0;
}
pv_paths_etc_policy_file(path, PATH_MAX, policy);
if (load_key_value_file(path, config_list) < 0) {
pv_log(FATAL, "unable to parse '%s'\n", path);
return -1;
}
return 0;
}
static struct pv_config_entry *_search_config_entry_by_key(const char *key)
{
struct pv_config_entry *entry = NULL;
const char *k;
for (config_index_t ci = 0; ci < PV_MAX; ci++) {
k = entries[ci].key;
if (pv_str_matches_case(k, strlen(k), key, strlen(key))) {
entry = &entries[ci];
break;
}
}
return entry;
}
static char *_get_mod_level_str(level_t ml)
{
switch (ml) {
case DEFAULT:
return "default";
case ARGS:
return "args";
case PV_CONF:
return "pv conf file";
case PH_CONF:
return "ph conf file";
case POLICY:
return "policy";
case PV_CMDLINE:
return "pv cmdline";
case PH_CMDLINE:
return "ph cmdline";
case ENV:
return "env";
case OEM:
return "oem config";
case META:
return "metadata";
case CMD:
return "command";
default:
return "unknown";
}
}
static int _set_config_by_entry(struct pv_config_entry *entry,
const char *value, level_t modified)
{
if (!entry)
return -1;
if (!(entry->allowed & modified)) {
pv_log(WARN, "key '%s' not allowed in %s level", entry->key,
_get_mod_level_str(modified));
return -1;
}
long value_int = 0;
if ((entry->type == BOOL) || (entry->type == INT)) {
char *endptr;
value_int = strtol(value, &endptr, 10);
if (*endptr != '\0') {
pv_log(WARN, "invalid number format '%s' for key '%s'",
value, entry->key);
return -1;
}
}
entry->modified = modified;
switch (entry->type) {
case BOOL:
_set_config_by_entry_bool(entry, value_int);
break;
case BOOTLOADER:
_set_config_by_entry_bootloader_type(entry, value);
break;
case INIT_MODE:
_set_config_by_entry_init_mode(entry, value);
break;
case INT:
_set_config_by_entry_int(entry, value_int);
break;
case LOG_SERVER_OUTPUT_UPDATE_MASK:
_set_config_by_entry_log_server_outputs(entry, value);
break;
case SB_MODE:
_set_config_by_entry_secureboot_mode(entry, value);
break;
case STR:
_set_config_by_entry_str(entry, value);
break;
case WDT_MODE:
_set_config_by_entry_wdt_mode(entry, value);
break;
default:
pv_log(WARN, "unknown config type %d for key '%s'", entry->type,
entry->key);
return -1;
}
return 0;
}
static struct pv_config_entry *_search_config_entry_by_alias(const char *alias)
{
size_t alias_number = sizeof(aliases) / sizeof(struct pv_config_alias);
char *a;
for (size_t ai = 0; ai < alias_number; ai++) {
a = aliases[ai].alias;
if (pv_str_matches(a, strlen(a), alias, strlen(alias)))
return _search_config_entry_by_key(aliases[ai].key);
}
return NULL;
}
static int _set_config_by_key(const char *key, const char *value, void *opaque)
{
level_t *level = (level_t *)opaque;
pv_log(DEBUG, "setting '%s' with value '%s' on level '%s'", key, value,
_get_mod_level_str(*level));
if (*level & LEVEL_SYSCTL) {
if (_set_config_sysctl_by_key(key, value))
return 0;
}
struct pv_config_entry *entry;
entry = _search_config_entry_by_key(key);
if (!entry) {
entry = _search_config_entry_by_alias(key);
if (entry) {
pv_log(WARN, "translating legacy key '%s' as '%s'", key,
entry->key);
}
}
if (!entry) {
pv_log(WARN, "key '%s' unknown", key);
return 0;
}
if (_set_config_by_entry(entry, value, *level)) {
pv_log(WARN, "cannot set key '%s' in config", key);
return 0;
}
return 0;
}
static void _iterate_config_items(struct dl_list *items, level_t level)
{
level_t l = level;
config_iterate_items(items, _set_config_by_key, (void *)&l);
}
static int pv_config_load_file(char *path)
{
int ret = -1;
char *policy = NULL;
DEFINE_DL_LIST(cmdline_list);
DEFINE_DL_LIST(env_list);
DEFINE_DL_LIST(pv_conf_list);
DEFINE_DL_LIST(policy_list);
config_parse_cmdline(&cmdline_list, "pv_");
config_parse_env(&env_list);
if (load_key_value_file(path, &pv_conf_list) < 0) {
pv_log(ERROR, "cannot load config from '%s'", path);
goto out;
}
policy = _get_value_policy(&cmdline_list);
if (!policy)
policy = _get_value_policy(&env_list);
if (!policy)
policy = _get_value_policy(&pv_conf_list);
_iterate_config_items(&pv_conf_list, PV_CONF);
// we do this here because we need the paths from pantavisor.config
if (pv_config_load_policy(policy, &policy_list)) {
pv_log(ERROR, "cannot load config from policy '%s'", policy);
goto out;
}
_iterate_config_items(&policy_list, POLICY);
_iterate_config_items(&cmdline_list, PV_CMDLINE);
_iterate_config_items(&env_list, ENV);
ret = 0;
out:
if (policy)
free(policy);
config_clear_items(&policy_list);
config_clear_items(&pv_conf_list);
config_clear_items(&env_list);
config_clear_items(&cmdline_list);
return ret;
}
static int pv_config_load_creds_from_file(char *path)
{
DEFINE_DL_LIST(ph_conf_list);
if (load_key_value_file(path, &ph_conf_list) < 0) {
pv_log(ERROR, "cannot load config from '%s'", path);
return -1;
}
level_t level = PH_CONF;
config_iterate_items(&ph_conf_list, _set_config_by_key, (void *)&level);
config_clear_items(&ph_conf_list);
DEFINE_DL_LIST(cmdline_list);
config_parse_cmdline(&cmdline_list, "ph_");
level = PH_CMDLINE;
config_iterate_items(&cmdline_list, _set_config_by_key, (void *)&level);
config_clear_items(&cmdline_list);
return 0;
}
static int pv_config_override_config_from_file(char *path, level_t level)
{
DEFINE_DL_LIST(oem_config_list);
if (load_key_value_file(path, &oem_config_list) < 0) {
pv_log(WARN, "could not load config file from '%s'", path);
return -1;
}
config_iterate_items(&oem_config_list, _set_config_by_key,
(void *)&level);
config_clear_items(&oem_config_list);
return 0;
}
static void pv_config_load_bsp(const char *rev, const char *trail_config)
{
if (trail_config)
pv_log(WARN,
"ignoring not supported BSP config file set in bsp/src.json");
}
static int pv_config_load_oem(const char *rev)
{
const char *oem_name = pv_config_get_str(PV_OEM_NAME);
if (!oem_name)
return 0;
char *policy = "default";
if (pv_config_get_str(PV_POLICY))
policy = pv_config_get_str(PV_POLICY);
char file_name[256];
snprintf(file_name, 256, "%s.config", policy);
char path[PATH_MAX];
pv_paths_storage_trail_plat_file(path, PATH_MAX, rev, oem_name,
file_name);
if (pv_config_override_config_from_file(path, OEM)) {
pv_log(WARN, "could not load OEM config file");
return -1;
}
return 0;
}
int pv_config_load_update(const char *rev, const char *trail_config)
{
pv_config_load_bsp(rev, trail_config);
if (pv_config_load_oem(rev)) {
pv_log(WARN, "could not load OEM config");
return -1;
}
return 0;
}
static int write_config_tuple_string(int fd, const char *key, const char *value)
{
if (!key || !value)
return 0;
if (write(fd, key, strlen(key)) < 0)
return -1;
if (write(fd, "=", 1) < 0)
return -1;
if (write(fd, value, strlen(value)) < 0)
return -1;
if (write(fd, "\n", 1) < 0)
return -1;
return 1;