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core-lightning/lightningd/options.c
Rusty Russell 62f531a1f2 lightningd: configvar style fixes 
1) We can't simply cast away const to manipulate a string, the compiler can assume
   we don't.  The type must be made non-const.
2) cisspace() is nicer to use than isspace() (no cast required!)
3) Simply place a NUL terminator instead of using memmove to set it.
4) Use cast_const to add const to char **, where necessary.
5) Add Changelog line, for CHANGELOG.md

Changelog-Fixed: Config: whitespace at the end of (most) options is now ignored, not complained about.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2024-08-10 15:20:59 +09:30

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#include "config.h"
#include <ccan/array_size/array_size.h>
#include <ccan/cast/cast.h>
#include <ccan/err/err.h>
#include <ccan/json_escape/json_escape.h>
#include <ccan/mem/mem.h>
#include <ccan/noerr/noerr.h>
#include <ccan/opt/opt.h>
#include <ccan/opt/private.h>
#include <ccan/read_write_all/read_write_all.h>
#include <ccan/str/hex/hex.h>
#include <ccan/tal/grab_file/grab_file.h>
#include <ccan/tal/path/path.h>
#include <ccan/tal/str/str.h>
#include <common/codex32.h>
#include <common/configdir.h>
#include <common/configvar.h>
#include <common/features.h>
#include <common/hsm_encryption.h>
#include <common/json_command.h>
#include <common/json_param.h>
#include <common/version.h>
#include <common/wireaddr.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <hsmd/hsmd_wiregen.h>
#include <lightningd/chaintopology.h>
#include <lightningd/hsm_control.h>
#include <lightningd/options.h>
#include <lightningd/plugin.h>
#include <lightningd/subd.h>
#include <sys/stat.h>
#include <sys/wait.h>
/* FIXME: Put into ccan/time. */
#define TIME_FROM_SEC(sec) { { .tv_nsec = 0, .tv_sec = sec } }
#define TIME_FROM_MSEC(msec) \
{ { .tv_nsec = ((msec) % 1000) * 1000000, .tv_sec = (msec) / 1000 } }
/* issue is NULL, or what the issue is with the argname */
static bool opt_deprecated_ok(struct lightningd *ld,
const char *argname,
const char *issue,
const char *start,
const char *end)
{
return lightningd_deprecated_in_ok(ld, ld->log,
ld->deprecated_ok,
argname, issue,
start, end, NULL);
}
static char *opt_set_u64(const char *arg, u64 *u)
{
char *endp;
unsigned long long l;
assert(arg != NULL);
/* This is how the manpage says to do it. Yech. */
errno = 0;
l = strtoull(arg, &endp, 0);
if (*endp || !arg[0])
return tal_fmt(tmpctx, "'%s' is not a number", arg);
*u = l;
if (errno || *u != l)
return tal_fmt(tmpctx, "'%s' is out of range", arg);
return NULL;
}
static char *opt_set_u64_dynamic(const char *arg, u64 *u)
{
u64 ignored;
/* In case we're called for arg checking only */
if (!u)
u = &ignored;
return opt_set_u64(arg, u);
}
static char *opt_set_u32(const char *arg, u32 *u)
{
char *endp;
unsigned long l;
assert(arg != NULL);
/* This is how the manpage says to do it. Yech. */
errno = 0;
l = strtoul(arg, &endp, 0);
if (*endp || !arg[0])
return tal_fmt(tmpctx, "'%s' is not a number", arg);
*u = l;
if (errno || *u != l)
return tal_fmt(tmpctx, "'%s' is out of range", arg);
return NULL;
}
static char *opt_set_s32(const char *arg, s32 *u)
{
char *endp;
long l;
assert(arg != NULL);
/* This is how the manpage says to do it. Yech. */
errno = 0;
l = strtol(arg, &endp, 0);
if (*endp || !arg[0])
return tal_fmt(tmpctx, "'%s' is not a number", arg);
*u = l;
if (errno || *u != l)
return tal_fmt(tmpctx, "'%s' is out of range", arg);
return NULL;
}
char *opt_set_autobool_arg(const char *arg, enum opt_autobool *b)
{
if (!strcasecmp(arg, "yes") ||
!strcasecmp(arg, "true")) {
*b = OPT_AUTOBOOL_TRUE;
return NULL;
}
if (!strcasecmp(arg, "no") ||
!strcasecmp(arg, "false")) {
*b = OPT_AUTOBOOL_FALSE;
return NULL;
}
if (!strcasecmp(arg, "auto") ||
!strcasecmp(arg, "default")) {
*b = OPT_AUTOBOOL_AUTO;
return NULL;
}
return opt_invalid_argument(arg);
}
bool opt_show_autobool(char *buf, size_t len, const enum opt_autobool *b)
{
switch (*b) {
case OPT_AUTOBOOL_TRUE:
strncpy(buf, "true", len);
return true;
case OPT_AUTOBOOL_FALSE:
strncpy(buf, "false", len);
return true;
case OPT_AUTOBOOL_AUTO:
strncpy(buf, "auto", len);
return true;
}
abort();
}
static char *opt_set_mode(const char *arg, mode_t *m)
{
char *endp;
long l;
assert(arg != NULL);
/* Ensure length, and starts with 0. */
if (strlen(arg) != 4 || arg[0] != '0')
return tal_fmt(tmpctx, "'%s' is not a file mode", arg);
/* strtol, manpage, yech. */
errno = 0;
l = strtol(arg, &endp, 8); /* Octal. */
if (errno || *endp)
return tal_fmt(tmpctx, "'%s' is not a file mode", arg);
*m = l;
/* Range check not needed, previous strlen checks ensures only
* 9-bit, which fits mode_t (unless your Unix is seriously borked).
*/
return NULL;
}
static char *opt_force_feerates(const char *arg, struct lightningd *ld)
{
char **vals = tal_strsplit(tmpctx, arg, "/", STR_EMPTY_OK);
size_t n;
/* vals has NULL at end, enum feerate is 0 based */
if (tal_count(vals) - 1 > FEERATE_PENALTY + 1)
return "Too many values";
if (!ld->force_feerates)
ld->force_feerates = tal_arr(ld, u32, FEERATE_PENALTY + 1);
n = 0;
for (size_t i = 0; i < tal_count(ld->force_feerates); i++) {
char *err = opt_set_u32(vals[n], &ld->force_feerates[i]);
if (err)
return err;
fprintf(stderr, "Set feerate %zu based on val %zu\n", i, n);
if (vals[n+1])
n++;
}
return NULL;
}
static char *fmt_force_feerates(const tal_t *ctx, const u32 *force_feerates)
{
char *ret;
size_t last;
if (!force_feerates)
return NULL;
ret = tal_fmt(ctx, "%i", force_feerates[0]);
last = 0;
for (size_t i = 1; i < tal_count(force_feerates); i++) {
if (force_feerates[i] == force_feerates[i-1])
continue;
/* Different? Catchup! */
for (size_t j = last + 1; j <= i; j++)
tal_append_fmt(&ret, "/%i", force_feerates[j]);
last = i;
}
return ret;
}
static char *opt_add_accept_htlc_tlv(const char *arg,
u64 **accept_extra_tlv_types)
{
size_t n = tal_count(*accept_extra_tlv_types);
tal_resize(accept_extra_tlv_types, n+1);
return opt_set_u64(arg, &(*accept_extra_tlv_types)[n]);
}
static char *opt_set_accept_extra_tlv_types(const char *arg,
struct lightningd *ld)
{
char *ret, **elements = tal_strsplit(tmpctx, arg, ",", STR_NO_EMPTY);
if (!opt_deprecated_ok(ld, "accept-htlc-tlv-types", NULL,
"v23.08", "v24.08")) {
return "Please use --accept-htlc-tlv-type multiple times";
}
for (int i = 0; elements[i] != NULL; i++) {
ret = opt_add_accept_htlc_tlv(elements[i],
&ld->accept_extra_tlv_types);
if (ret)
return ret;
}
return NULL;
}
/* Returns the number of wireaddr types already announced */
static size_t num_announced_types(enum wire_addr_type type, struct lightningd *ld)
{
size_t num = 0;
for (size_t i = 0; i < tal_count(ld->proposed_wireaddr); i++) {
if (ld->proposed_wireaddr[i].itype != ADDR_INTERNAL_WIREADDR)
continue;
if (ld->proposed_wireaddr[i].u.wireaddr.wireaddr.type != type)
continue;
if (ld->proposed_listen_announce[i] & ADDR_ANNOUNCE)
num++;
}
return num;
}
static char *opt_add_addr_withtype(const char *arg,
struct lightningd *ld,
enum addr_listen_announce ala)
{
char const *err_msg;
struct wireaddr_internal wi;
bool dns_lookup_ok;
char *address;
u16 port;
assert(arg != NULL);
dns_lookup_ok = !ld->always_use_proxy && ld->config.use_dns;
/* Deprecated announce-addr-dns: autodetect DNS addresses. */
if (ld->announce_dns && (ala == ADDR_ANNOUNCE)
&& separate_address_and_port(tmpctx, arg, &address, &port)
&& is_dnsaddr(address)) {
log_unusual(ld->log, "Adding dns prefix to %s!", arg);
arg = tal_fmt(tmpctx, "dns:%s", arg);
}
err_msg = parse_wireaddr_internal(tmpctx, arg, ld->portnum,
dns_lookup_ok, &wi);
if (err_msg)
return tal_fmt(tmpctx, "Unable to parse address '%s': %s", arg, err_msg);
/* Check they didn't specify some weird type! */
switch (wi.itype) {
case ADDR_INTERNAL_WIREADDR:
switch (wi.u.wireaddr.wireaddr.type) {
case ADDR_TYPE_IPV4:
case ADDR_TYPE_IPV6:
if ((ala & ADDR_ANNOUNCE) && wi.u.allproto.is_websocket)
return tal_fmt(tmpctx,
"Cannot announce websocket address, use --bind-addr=%s", arg);
/* These can be either bind or announce */
break;
case ADDR_TYPE_TOR_V2_REMOVED:
/* Can't happen any more */
abort();
case ADDR_TYPE_TOR_V3:
switch (ala) {
case ADDR_LISTEN:
if (!opt_deprecated_ok(ld, "bind-addr", "torv3",
"v23.08", "v24.08"))
return tal_fmt(tmpctx,
"Don't use --bind-addr=%s, use --announce-addr=%s",
arg, arg);
log_unusual(ld->log,
"You used `--bind-addr=%s` option with an .onion address,"
" You are lucky in this node live some wizards and"
" fairies, we have done this for you and don't announce, Be as hidden as wished",
arg);
/* And we ignore it */
return NULL;
case ADDR_LISTEN_AND_ANNOUNCE:
if (!opt_deprecated_ok(ld, "addr", "torv3",
"v23.08", "v24.08"))
return tal_fmt(tmpctx,
"Don't use --addr=%s, use --announce-addr=%s",
arg, arg);
log_unusual(ld->log,
"You used `--addr=%s` option with an .onion address,"
" You are lucky in this node live some wizards and"
" fairies, we have done this for you and don't announce, Be as hidden as wished",
arg);
ala = ADDR_LISTEN;
break;
case ADDR_ANNOUNCE:
break;
}
break;
case ADDR_TYPE_DNS:
/* Can only announce this */
switch (ala) {
case ADDR_ANNOUNCE:
break;
case ADDR_LISTEN:
return tal_fmt(tmpctx,
"Cannot use dns: prefix with --bind-addr, use --bind-addr=%s", arg + strlen("dns:"));
case ADDR_LISTEN_AND_ANNOUNCE:
return tal_fmt(tmpctx,
"Cannot use dns: prefix with --addr, use --bind-addr=%s and --addr=%s",
arg + strlen("dns:"),
arg);
}
/* BOLT #7:
* The origin node:
* ...
* - MUST NOT announce more than one `type 5` DNS hostname.
*/
if (num_announced_types(ADDR_TYPE_DNS, ld) > 0)
return tal_fmt(tmpctx, "Only one DNS can be announced");
break;
}
break;
case ADDR_INTERNAL_SOCKNAME:
switch (ala) {
case ADDR_ANNOUNCE:
return tal_fmt(tmpctx,
"Cannot announce sockets, try --bind-addr=%s", arg);
case ADDR_LISTEN_AND_ANNOUNCE:
if (!opt_deprecated_ok(ld, "addr", "socket",
"v23.08", "v24.08"))
return tal_fmt(tmpctx, "Don't use --addr=%s, use --bind-addr=%s",
arg, arg);
ala = ADDR_LISTEN;
/* Fall thru */
case ADDR_LISTEN:
break;
}
break;
case ADDR_INTERNAL_AUTOTOR:
case ADDR_INTERNAL_STATICTOR:
/* We turn --announce-addr into --addr */
switch (ala) {
case ADDR_ANNOUNCE:
ala = ADDR_LISTEN_AND_ANNOUNCE;
break;
case ADDR_LISTEN_AND_ANNOUNCE:
case ADDR_LISTEN:
break;
}
break;
case ADDR_INTERNAL_ALLPROTO:
/* You can only bind to wildcard, and optionally announce */
switch (ala) {
case ADDR_ANNOUNCE:
return tal_fmt(tmpctx, "Cannot use wildcard address '%s'", arg);
case ADDR_LISTEN_AND_ANNOUNCE:
if (wi.u.allproto.is_websocket)
return tal_fmt(tmpctx,
"Cannot announce websocket address, use --bind-addr=%s", arg);
/* fall thru */
case ADDR_LISTEN:
break;
}
break;
case ADDR_INTERNAL_FORPROXY:
/* You can't use these addresses here at all: this means we've
* suppressed DNS and given a string-style name */
return tal_fmt(tmpctx, "Cannot resolve address '%s' (not using DNS!)", arg);
}
/* Sanity check for exact duplicates. */
for (size_t i = 0; i < tal_count(ld->proposed_wireaddr); i++) {
/* Only compare announce vs announce and bind vs bind */
if ((ld->proposed_listen_announce[i] & ala) == 0)
continue;
if (wireaddr_internal_eq(&ld->proposed_wireaddr[i], &wi))
return tal_fmt(tmpctx, "Duplicate %s address %s",
ala & ADDR_ANNOUNCE ? "announce" : "listen",
fmt_wireaddr_internal(tmpctx, &wi));
}
tal_arr_expand(&ld->proposed_listen_announce, ala);
tal_arr_expand(&ld->proposed_wireaddr, wi);
return NULL;
}
static char *opt_add_announce_addr(const char *arg, struct lightningd *ld)
{
return opt_add_addr_withtype(arg, ld, ADDR_ANNOUNCE);
}
static char *opt_add_addr(const char *arg, struct lightningd *ld)
{
return opt_add_addr_withtype(arg, ld, ADDR_LISTEN_AND_ANNOUNCE);
}
static char *opt_add_bind_addr(const char *arg, struct lightningd *ld)
{
return opt_add_addr_withtype(arg, ld, ADDR_LISTEN);
}
static char *opt_subdaemon(const char *arg, struct lightningd *ld)
{
char *subdaemon;
char *sdpath;
/* example arg: "hsmd:remote_hsmd" */
size_t colonoff = strcspn(arg, ":");
if (!arg[colonoff])
return tal_fmt(tmpctx, "argument must contain ':'");
subdaemon = tal_strndup(ld, arg, colonoff);
if (!is_subdaemon(subdaemon))
return tal_fmt(tmpctx, "\"%s\" is not a subdaemon", subdaemon);
/* Make the value a tal-child of the subdaemon */
sdpath = tal_strdup(subdaemon, arg + colonoff + 1);
/* Remove any preexisting alt subdaemon mapping (and
* implicitly, the sdpath). */
tal_free(strmap_del(&ld->alt_subdaemons, subdaemon, NULL));
strmap_add(&ld->alt_subdaemons, subdaemon, sdpath);
return NULL;
}
static bool opt_show_u64(char *buf, size_t len, const u64 *u)
{
snprintf(buf, len, "%"PRIu64, *u);
return true;
}
static bool opt_show_u32(char *buf, size_t len, const u32 *u)
{
snprintf(buf, len, "%"PRIu32, *u);
return true;
}
static bool opt_show_s32(char *buf, size_t len, const s32 *u)
{
snprintf(buf, len, "%"PRIi32, *u);
return true;
}
static bool opt_show_mode(char *buf, size_t len, const mode_t *m)
{
snprintf(buf, len, "%04o", (int) *m);
return true;
}
static bool opt_show_rgb(char *buf, size_t len, const struct lightningd *ld)
{
/* Can happen with -h! */
if (!ld->rgb)
return false;
/* This is always set; if not by arg, then by default */
hex_encode(ld->rgb, 3, buf, len);
return true;
}
static char *opt_set_rgb(const char *arg, struct lightningd *ld)
{
assert(arg != NULL);
ld->rgb = tal_free(ld->rgb);
/* BOLT #7:
*
* - Note: the first byte of `rgb_color` is the red value, the second
* byte is the green value, and the last byte is the blue value.
*/
ld->rgb = tal_hexdata(ld, arg, strlen(arg));
if (!ld->rgb || tal_count(ld->rgb) != 3)
return tal_fmt(tmpctx, "rgb '%s' is not six hex digits", arg);
return NULL;
}
static bool opt_show_alias(char *buf, size_t len, const struct lightningd *ld)
{
/* Can happen with -h! */
if (!ld->alias)
return false;
strncpy(buf, cast_signed(const char *, ld->alias), len);
return true;
}
static char *opt_set_alias(const char *arg, struct lightningd *ld)
{
assert(arg != NULL);
ld->alias = tal_free(ld->alias);
/* BOLT #7:
*
* * [`32*byte`:`alias`]
*...
* - MUST set `alias` to a valid UTF-8 string, with any
* `alias` trailing-bytes equal to 0.
*/
if (strlen(arg) > 32)
return tal_fmt(tmpctx, "Alias '%s' is over 32 characters", arg);
ld->alias = tal_arrz(ld, u8, 33);
strncpy((char*)ld->alias, arg, 32);
return NULL;
}
static char *opt_set_offline(struct lightningd *ld)
{
ld->reconnect = false;
ld->listen = false;
log_info(ld->log, "Started in offline mode!");
return NULL;
}
static char *opt_add_proxy_addr(const char *arg, struct lightningd *ld)
{
bool needed_dns = false;
const char *err;
tal_free(ld->proxyaddr);
/* We use a tal_arr here, so we can marshal it to gossipd */
ld->proxyaddr = tal_arr(ld, struct wireaddr, 1);
err = parse_wireaddr(tmpctx, arg, 9050,
ld->always_use_proxy ? &needed_dns : NULL,
ld->proxyaddr);
return cast_const(char *, err);
}
static char *opt_add_plugin(const char *arg, struct lightningd *ld)
{
struct plugin *p;
if (plugin_blacklisted(ld->plugins, arg)) {
log_info(ld->log, "%s: disabled via disable-plugin", arg);
return NULL;
}
p = plugin_register(ld->plugins, arg, NULL, false, NULL, NULL);
if (!p)
return tal_fmt(tmpctx, "Failed to register %s: %s", arg, strerror(errno));
return NULL;
}
static char *opt_disable_plugin(const char *arg, struct lightningd *ld)
{
plugin_blacklist(ld->plugins, arg);
return NULL;
}
static char *opt_add_plugin_dir(const char *arg, struct lightningd *ld)
{
return add_plugin_dir(ld->plugins, arg, false);
}
static char *opt_clear_plugins(struct lightningd *ld)
{
clear_plugins(ld->plugins);
/* Remove from configvars too! */
for (size_t i = 0; i < tal_count(ld->configvars); i++) {
if (streq(ld->configvars[i]->optvar, "plugin")
|| streq(ld->configvars[i]->optvar, "plugin-dir"))
ld->configvars[i]->overridden = true;
}
return NULL;
}
static char *opt_important_plugin(const char *arg, struct lightningd *ld)
{
struct plugin *p;
if (plugin_blacklisted(ld->plugins, arg)) {
log_info(ld->log, "%s: disabled via disable-plugin", arg);
return NULL;
}
p = plugin_register(ld->plugins, arg, NULL, true, NULL, NULL);
if (!p)
return tal_fmt(tmpctx, "Failed to register %s: %s", arg, strerror(errno));
return NULL;
}
/* Test code looks in logs, so we print prompts to log as well as stdout */
static void prompt(struct lightningd *ld, const char *str)
{
printf("%s\n", str);
log_debug(ld->log, "PROMPT: %s", str);
/* If we don't flush we might end up being buffered and we might seem
* to hang while we wait for the password. */
fflush(stdout);
}
/* Prompt the user to enter a password, from which will be derived the key used
* for `hsm_secret` encryption.
* The algorithm used to derive the key is Argon2(id), to which libsodium
* defaults. However argon2id-specific constants are used in case someone runs it
* with a libsodium version which default constants differs (typically <1.0.9).
*/
static char *opt_set_hsm_password(struct lightningd *ld)
{
char *passwd, *passwd_confirmation, *err_msg;
int is_encrypted;
is_encrypted = is_hsm_secret_encrypted("hsm_secret");
/* While lightningd is performing the first initialization
* this check is always true because the file does not exist.
*
* Maybe the is_hsm_secret_encrypted is performing a not useful
* check at this stage, but the hsm is a delicate part,
* so it is a good information to have inside the log. */
if (is_encrypted == -1)
log_info(ld->log, "'hsm_secret' does not exist (%s)",
strerror(errno));
prompt(ld, "The hsm_secret is encrypted with a password. In order to "
"decrypt it and start the node you must provide the password.");
prompt(ld, "Enter hsm_secret password:");
passwd = read_stdin_pass_with_exit_code(&err_msg, &opt_exitcode);
if (!passwd)
return err_msg;
if (!is_encrypted) {
prompt(ld, "Confirm hsm_secret password:");
fflush(stdout);
passwd_confirmation = read_stdin_pass_with_exit_code(&err_msg, &opt_exitcode);
if (!passwd_confirmation)
return err_msg;
if (!streq(passwd, passwd_confirmation)) {
opt_exitcode = EXITCODE_HSM_BAD_PASSWORD;
return "Passwords confirmation mismatch.";
}
free(passwd_confirmation);
}
prompt(ld, "");
ld->config.keypass = tal(NULL, struct secret);
opt_exitcode = hsm_secret_encryption_key_with_exitcode(passwd, ld->config.keypass, &err_msg);
if (opt_exitcode > 0)
return err_msg;
ld->encrypted_hsm = true;
free(passwd);
return NULL;
}
static char *opt_set_max_htlc_cltv(const char *arg, struct lightningd *ld)
{
if (!opt_deprecated_ok(ld, "max-locktime-blocks", NULL,
"v24.05", "v24.11"))
return "--max-locktime-blocks has been deprecated (BOLT #4 says 2016)";
return opt_set_u32(arg, &ld->config.max_htlc_cltv);
}
static char *opt_force_privkey(const char *optarg, struct lightningd *ld)
{
tal_free(ld->dev_force_privkey);
ld->dev_force_privkey = tal(ld, struct privkey);
if (!hex_decode(optarg, strlen(optarg),
ld->dev_force_privkey, sizeof(*ld->dev_force_privkey)))
return tal_fmt(tmpctx, "Unable to parse privkey '%s'", optarg);
return NULL;
}
static char *opt_force_bip32_seed(const char *optarg, struct lightningd *ld)
{
tal_free(ld->dev_force_bip32_seed);
ld->dev_force_bip32_seed = tal(ld, struct secret);
if (!hex_decode(optarg, strlen(optarg),
ld->dev_force_bip32_seed,
sizeof(*ld->dev_force_bip32_seed)))
return tal_fmt(tmpctx, "Unable to parse secret '%s'", optarg);
return NULL;
}
static char *opt_force_tmp_channel_id(const char *optarg, struct lightningd *ld)
{
tal_free(ld->dev_force_tmp_channel_id);
ld->dev_force_tmp_channel_id = tal(ld, struct channel_id);
if (!hex_decode(optarg, strlen(optarg),
ld->dev_force_tmp_channel_id,
sizeof(*ld->dev_force_tmp_channel_id)))
return tal_fmt(tmpctx, "Unable to parse channel id '%s'", optarg);
return NULL;
}
static char *opt_force_channel_secrets(const char *optarg,
struct lightningd *ld)
{
char **strs;
tal_free(ld->dev_force_channel_secrets);
tal_free(ld->dev_force_channel_secrets_shaseed);
ld->dev_force_channel_secrets = tal(ld, struct secrets);
ld->dev_force_channel_secrets_shaseed = tal(ld, struct sha256);
strs = tal_strsplit(tmpctx, optarg, "/", STR_EMPTY_OK);
if (tal_count(strs) != 7) /* Last is NULL */
return "Expected 6 hex secrets separated by /";
if (!hex_decode(strs[0], strlen(strs[0]),
&ld->dev_force_channel_secrets->funding_privkey,
sizeof(ld->dev_force_channel_secrets->funding_privkey))
|| !hex_decode(strs[1], strlen(strs[1]),
&ld->dev_force_channel_secrets->revocation_basepoint_secret,
sizeof(ld->dev_force_channel_secrets->revocation_basepoint_secret))
|| !hex_decode(strs[2], strlen(strs[2]),
&ld->dev_force_channel_secrets->payment_basepoint_secret,
sizeof(ld->dev_force_channel_secrets->payment_basepoint_secret))
|| !hex_decode(strs[3], strlen(strs[3]),
&ld->dev_force_channel_secrets->delayed_payment_basepoint_secret,
sizeof(ld->dev_force_channel_secrets->delayed_payment_basepoint_secret))
|| !hex_decode(strs[4], strlen(strs[4]),
&ld->dev_force_channel_secrets->htlc_basepoint_secret,
sizeof(ld->dev_force_channel_secrets->htlc_basepoint_secret))
|| !hex_decode(strs[5], strlen(strs[5]),
ld->dev_force_channel_secrets_shaseed,
sizeof(*ld->dev_force_channel_secrets_shaseed)))
return "Expected 6 hex secrets separated by /";
return NULL;
}
static char *opt_force_featureset(const char *optarg,
struct lightningd *ld)
{
char **parts = tal_strsplit(tmpctx, optarg, "/", STR_EMPTY_OK);
if (tal_count(parts) != NUM_FEATURE_PLACE + 1) {
if (!strstarts(optarg, "-") && !strstarts(optarg, "+"))
return "Expected 8 feature sets (init/globalinit/"
" node_announce/channel/bolt11/b12offer/b12invreq/b12inv) each terminated by /"
" OR +/-<single_bit_num>";
char *endp;
long int n = strtol(optarg + 1, &endp, 10);
const struct feature_set *f;
if (*endp || endp == optarg + 1)
return "Invalid feature number";
f = feature_set_for_feature(NULL, n);
if (strstarts(optarg, "-")) {
feature_set_sub(ld->our_features, take(f));
}
if (strstarts(optarg, "+")
&& !feature_set_or(ld->our_features, take(f)))
return "Feature already flagged-on";
return NULL;
}
for (size_t i = 0; parts[i]; i++) {
char **bits = tal_strsplit(tmpctx, parts[i], ",", STR_EMPTY_OK);
tal_resize(&ld->our_features->bits[i], 0);
for (size_t j = 0; bits[j]; j++) {
char *endp;
long int n = strtol(bits[j], &endp, 10);
if (*endp || endp == bits[j])
return "Invalid bitnumber";
set_feature_bit(&ld->our_features->bits[i], n);
}
}
return NULL;
}
static char *opt_ignore(void *unused)
{
return NULL;
}
static void dev_register_opts(struct lightningd *ld)
{
/* We might want to debug plugins, which are started before normal
* option parsing */
clnopt_witharg("--dev-debugger=<subprocess>", OPT_EARLY|OPT_DEV,
opt_set_charp, opt_show_charp,
&ld->dev_debug_subprocess,
"Invoke gdb at start of <subprocess>");
clnopt_noarg("--dev-no-plugin-checksum", OPT_EARLY|OPT_DEV,
opt_set_bool,
&ld->dev_no_plugin_checksum,
"Don't checksum plugins to detect changes");
clnopt_noarg("--dev-builtin-plugins-unimportant", OPT_EARLY|OPT_DEV,
opt_set_bool,
&ld->plugins->dev_builtin_plugins_unimportant,
"Make builtin plugins unimportant so you can plugin stop them.");
clnopt_noarg("--dev-no-reconnect", OPT_DEV,
opt_set_invbool,
&ld->reconnect,
"Disable automatic reconnect-attempts by this node, but accept incoming");
clnopt_noarg("--dev-no-reconnect-private", OPT_DEV,
opt_set_invbool,
&ld->reconnect_private,
"Disable automatic reconnect-attempts to peers with private channel(s) only, but accept incoming");
clnopt_noarg("--dev-fast-reconnect", OPT_DEV,
opt_set_bool,
&ld->dev_fast_reconnect,
"Make max default reconnect delay 3 (not 300) seconds");
clnopt_noarg("--dev-fail-on-subdaemon-fail", OPT_DEV,
opt_set_bool,
&ld->dev_subdaemon_fail, opt_hidden);
clnopt_witharg("--dev-disconnect=<filename>", OPT_DEV,
opt_subd_dev_disconnect,
NULL, ld, "File containing disconnection points");
clnopt_noarg("--dev-allow-localhost", OPT_DEV,
opt_set_bool,
&ld->dev_allow_localhost,
"Announce and allow announcments for localhost address");
clnopt_witharg("--dev-bitcoind-poll", OPT_DEV|OPT_SHOWINT,
opt_set_u32, opt_show_u32,
&ld->topology->poll_seconds,
"Time between polling for new transactions");
clnopt_noarg("--dev-fast-gossip", OPT_DEV,
opt_set_bool,
&ld->dev_fast_gossip,
"Make gossip broadcast 1 second, etc");
clnopt_noarg("--dev-fast-gossip-prune", OPT_DEV,
opt_set_bool,
&ld->dev_fast_gossip_prune,
"Make gossip pruning 30 seconds");
clnopt_witharg("--dev-gossip-time", OPT_DEV|OPT_SHOWINT,
opt_set_u32, opt_show_u32,
&ld->dev_gossip_time,
"UNIX time to override gossipd to use.");
clnopt_witharg("--dev-force-privkey", OPT_DEV,
opt_force_privkey, NULL, ld,
"Force HSM to use this as node private key");
clnopt_witharg("--dev-force-bip32-seed", OPT_DEV,
opt_force_bip32_seed, NULL, ld,
"Force HSM to use this as bip32 seed");
clnopt_witharg("--dev-force-channel-secrets", OPT_DEV,
opt_force_channel_secrets, NULL, ld,
"Force HSM to use these for all per-channel secrets");
clnopt_witharg("--dev-max-funding-unconfirmed-blocks",
OPT_DEV|OPT_SHOWINT,
opt_set_u32, opt_show_u32,
&ld->dev_max_funding_unconfirmed,
"Maximum number of blocks we wait for a channel "
"funding transaction to confirm, if we are the "
"fundee.");
clnopt_witharg("--dev-force-tmp-channel-id", OPT_DEV,
opt_force_tmp_channel_id, NULL, ld,
"Force the temporary channel id, instead of random");
clnopt_noarg("--dev-no-htlc-timeout", OPT_DEV,
opt_set_bool,
&ld->dev_no_htlc_timeout,
"Don't kill channeld if HTLCs not confirmed within 30 seconds");
clnopt_noarg("--dev-fail-process-onionpacket", OPT_DEV,
opt_set_bool,
&dev_fail_process_onionpacket,
"Force all processing of onion packets to fail");
clnopt_noarg("--dev-no-version-checks", OPT_DEV,
opt_set_bool,
&ld->dev_no_version_checks,
"Skip calling subdaemons with --version on startup");
clnopt_witharg("--dev-force-features", OPT_DEV,
opt_force_featureset, NULL, ld,
"Force the init/globalinit/node_announce/channel/bolt11/ features, each comma-separated bitnumbers OR a single +/-<bitnumber>");
clnopt_witharg("--dev-timeout-secs", OPT_DEV|OPT_SHOWINT,
opt_set_u32, opt_show_u32,
&ld->config.connection_timeout_secs,
"Seconds to timeout if we don't receive INIT from peer");
clnopt_noarg("--dev-no-modern-onion", OPT_DEV,
opt_set_bool,
&ld->dev_ignore_modern_onion,
"Ignore modern onion messages");
clnopt_witharg("--dev-disable-commit-after", OPT_DEV|OPT_SHOWINT,
opt_set_intval, opt_show_intval,
&ld->dev_disable_commit,
"Disable commit timer after this many commits");
clnopt_noarg("--dev-no-ping-timer", OPT_DEV,
opt_set_bool,
&ld->dev_no_ping_timer,
"Don't hang up if we don't get a ping response");
clnopt_witharg("--dev-onion-reply-length", OPT_DEV|OPT_SHOWINT,
opt_set_uintval,
opt_show_uintval,
&dev_onion_reply_length,
"Send onion errors of custom length");
clnopt_witharg("--dev-max-fee-multiplier", OPT_DEV|OPT_SHOWINT,
opt_set_uintval,
opt_show_uintval,
&ld->config.max_fee_multiplier,
"Allow the fee proposed by the remote end to"
" be up to multiplier times higher than our "
"own. Small values will cause channels to be"
" closed more often due to fee fluctuations,"
" large values may result in large fees.");
clnopt_witharg("--dev-allowdustreserve", OPT_DEV|OPT_SHOWBOOL,
opt_set_bool_arg, opt_show_bool,
&ld->config.allowdustreserve,
"If true, we allow the `fundchannel` RPC command and the `openchannel` plugin hook to set a reserve that is below the dust limit.");
clnopt_noarg("--dev-any-channel-type", OPT_DEV,
opt_set_bool,
&ld->dev_any_channel_type,
"Allow sending any channel type, and accept any");
clnopt_noarg("--dev-allow-shutdown-destination-change", OPT_DEV,
opt_set_bool,
&ld->dev_allow_shutdown_destination_change,
"Allow destination override on close, even if risky");
clnopt_noarg("--dev-hsmd-no-preapprove-check", OPT_DEV,
opt_set_bool,
&ld->dev_hsmd_no_preapprove_check,
"Tell hsmd not to support preapprove_check msgs");
clnopt_noarg("--dev-hsmd-fail-preapprove", OPT_DEV,
opt_set_bool,
&ld->dev_hsmd_fail_preapprove,
"Tell hsmd to always deny preapprove_invoice / preapprove_keysend");
clnopt_witharg("--dev-fd-limit-multiplier", OPT_DEV|OPT_SHOWINT,
opt_set_u32, opt_show_u32,
&ld->fd_limit_multiplier,
"Try to set fd limit to this many times by number of channels (default: 2)");
clnopt_noarg("--dev-handshake-no-reply", OPT_DEV,
opt_set_bool,
&ld->dev_handshake_no_reply,
"Don't send or read init message after connection");
clnopt_noarg("--dev-throttle-gossip", OPT_DEV,
opt_set_bool,
&ld->dev_throttle_gossip,
"Throttle gossip right down, for testing");
/* This is handled directly in daemon_developer_mode(), so we ignore it here */
clnopt_noarg("--dev-debug-self", OPT_DEV,
opt_ignore,
NULL,
"Fire up a terminal window with a debugger in it on initialization");
}
static const struct config testnet_config = {
/* 6 blocks to catch cheating attempts. */
.locktime_blocks = 6,
/* BOLT #4:
* ## `max_htlc_cltv` Selection
*
* This ... value is defined as 2016 blocks, based on historical value
* deployed by Lightning implementations.
*/
/* FIXME: Typo in spec for CLTV in descripton! But it breaks our spelling check, so we omit it above */
.max_htlc_cltv = 2016,
/* We're fairly trusting, under normal circumstances. */
.anchor_confirms = 1,
/* Testnet blockspace is free. */
.max_concurrent_htlcs = 483,
/* channel defaults for htlc min/max values */
.htlc_minimum_msat = AMOUNT_MSAT(0),
.htlc_maximum_msat = AMOUNT_MSAT(-1ULL), /* no limit */
/* Max amount of dust allowed per channel (50ksat) */
.max_dust_htlc_exposure_msat = AMOUNT_MSAT(50000000),
/* Be aggressive on testnet. */
.cltv_expiry_delta = 6,
.cltv_final = 10,
/* Send commit 10msec after receiving; almost immediately. */
.commit_time_ms = 10,
/* Allow dust payments */
.fee_base = 1,
/* Take 0.001% */
.fee_per_satoshi = 10,
/* Testnet sucks */
.ignore_fee_limits = true,
/* Rescan 5 hours of blocks on testnet, it's reorg happy */
.rescan = 30,
.use_dns = true,
/* Excplicitly turns 'on' or 'off' IP discovery feature. */
.ip_discovery = OPT_AUTOBOOL_AUTO,
/* Public TCP port assumed for IP discovery. Defaults to chainparams. */
.ip_discovery_port = 0,
/* Sets min_effective_htlc_capacity - at 1000$/BTC this is 10ct */
.min_capacity_sat = 10000,
/* 1 minute should be enough for anyone! */
.connection_timeout_secs = 60,
.exp_offers = false,
.allowdustreserve = false,
.require_confirmed_inputs = false,
.max_fee_multiplier = 10,
.commit_fee_percent = 100,
.feerate_offset = 5,
};
/* aka. "Dude, where's my coins?" */
static const struct config mainnet_config = {
/* ~one day to catch cheating attempts. */
.locktime_blocks = 6 * 24,
/* BOLT #4:
* ## `max_htlc_cltv` Selection
*
* This ... value is defined as 2016 blocks, based on historical value
* deployed by Lightning implementations.
*/
/* FIXME: Typo in spec for CLTV in descripton! But it breaks our spelling check, so we omit it above */
.max_htlc_cltv = 2016,
/* We're fairly trusting, under normal circumstances. */
.anchor_confirms = 3,
/* While up to 483 htlcs are possible we do 30 by default (as eclair does) to save blockspace */
.max_concurrent_htlcs = 30,
/* defaults for htlc min/max values */
.htlc_minimum_msat = AMOUNT_MSAT(0),
.htlc_maximum_msat = AMOUNT_MSAT(-1ULL), /* no limit */
/* Max amount of dust allowed per channel (50ksat) */
.max_dust_htlc_exposure_msat = AMOUNT_MSAT(50000000),
/* BOLT #2:
*
* 1. the `cltv_expiry_delta` for channels, `3R+2G+2S`: if in doubt, a
* `cltv_expiry_delta` of at least 34 is reasonable (R=2, G=2, S=12)
*/
/* R = 2, G = 2, S = 12 */
.cltv_expiry_delta = 34,
/* BOLT #2:
*
* 4. the minimum `cltv_expiry` accepted for terminal payments: the
* worst case for the terminal node C is `2R+G+S` blocks */
.cltv_final = 18,
/* Send commit 10msec after receiving; almost immediately. */
.commit_time_ms = 10,
/* Discourage dust payments */
.fee_base = 1000,
/* Take 0.001% */
.fee_per_satoshi = 10,
/* Mainnet should have more stable fees */
.ignore_fee_limits = false,
/* Rescan 2.5 hours of blocks on startup, it's not so reorg happy */
.rescan = 15,
.use_dns = true,
/* Excplicitly turns 'on' or 'off' IP discovery feature. */
.ip_discovery = OPT_AUTOBOOL_AUTO,
/* Public TCP port assumed for IP discovery. Defaults to chainparams. */
.ip_discovery_port = 0,
/* Sets min_effective_htlc_capacity - at 1000$/BTC this is 10ct */
.min_capacity_sat = 10000,
/* 1 minute should be enough for anyone! */
.connection_timeout_secs = 60,
.exp_offers = false,
.allowdustreserve = false,
.require_confirmed_inputs = false,
.max_fee_multiplier = 10,
.commit_fee_percent = 100,
.feerate_offset = 5,
};
static void check_config(struct lightningd *ld)
{
/* BOLT #2:
*
* The receiving node MUST fail the channel if:
*...
* - `max_accepted_htlcs` is greater than 483.
*/
if (ld->config.max_concurrent_htlcs < 1 || ld->config.max_concurrent_htlcs > 483)
fatal("--max-concurrent-htlcs value must be between 1 and 483 it is: %u",
ld->config.max_concurrent_htlcs);
if (ld->config.anchor_confirms == 0)
fatal("anchor-confirms must be greater than zero");
if (ld->always_use_proxy && !ld->proxyaddr)
fatal("--always-use-proxy needs --proxy");
if (ld->daemon_parent_fd != -1 && !ld->logfiles)
fatal("--daemon needs --log-file");
}
static char *test_subdaemons_and_exit(struct lightningd *ld)
{
test_subdaemons(ld);
exit(0);
return NULL;
}
static char *list_features_and_exit(struct lightningd *ld)
{
const char **features = list_supported_features(tmpctx, ld->our_features);
for (size_t i = 0; i < tal_count(features); i++)
printf("%s\n", features[i]);
printf("supports_open_accept_channel_type\n");
exit(0);
}
static char *opt_lightningd_usage(struct lightningd *ld)
{
char *extra = tal_fmt(NULL, "\nA bitcoin lightning daemon (default "
"values shown for network: %s).", chainparams->network_name);
opt_usage_and_exit(extra);
tal_free(extra);
return NULL;
}
static char *opt_start_daemon(struct lightningd *ld)
{
int fds[2];
int exitcode, pid;
/* Already a daemon? OK. */
if (ld->daemon_parent_fd != -1)
return NULL;
if (pipe(fds) != 0)
err(1, "Creating pipe to talk to --daemon");
pid = fork();
if (pid == -1)
err(1, "Fork failed for --daemon");
if (pid == 0) {
/* Child returns, continues as normal. */
close(fds[0]);
ld->daemon_parent_fd = fds[1];
return NULL;
}
/* OK, we are the parent. We exit with status told to us by
* child. */
close(fds[1]);
if (read(fds[0], &exitcode, sizeof(exitcode)) == sizeof(exitcode))
_exit(exitcode);
/* It died before writing exitcode (presumably 0), so we grab it */
waitpid(pid, &exitcode, 0);
if (WIFEXITED(exitcode))
_exit(WEXITSTATUS(exitcode));
errx(1, "Died with signal %u", WTERMSIG(exitcode));
}
static bool opt_show_msat(char *buf, size_t len, const struct amount_msat *msat)
{
opt_show_u64(buf, len, &msat->millisatoshis /* Raw: option output */);
return true;
}
static char *opt_set_msat(const char *arg, struct amount_msat *amt)
{
if (!parse_amount_msat(amt, arg, strlen(arg)))
return tal_fmt(tmpctx, "Unable to parse millisatoshi '%s'", arg);
return NULL;
}
static char *opt_set_sat(const char *arg, struct amount_sat *sat)
{
struct amount_msat msat;
if (!parse_amount_msat(&msat, arg, strlen(arg)))
return tal_fmt(NULL, "Unable to parse millisatoshi '%s'", arg);
if (!amount_msat_to_sat(sat, msat))
return tal_fmt(NULL, "'%s' is not a whole number of sats", arg);
return NULL;
}
static char *opt_set_sat_nondust(const char *arg, struct amount_sat *sat)
{
char *ret = opt_set_sat(arg, sat);
if (ret)
return ret;
if (amount_sat_less(*sat, chainparams->dust_limit))
return tal_fmt(tmpctx, "Option must be over dust limit!");
return NULL;
}
static bool opt_show_sat(char *buf, size_t len, const struct amount_sat *sat)
{
struct amount_msat msat;
if (!amount_sat_to_msat(&msat, *sat))
abort();
return opt_show_u64(buf, len,
&msat.millisatoshis); /* Raw: show sats number */
}
static char *opt_set_wumbo(struct lightningd *ld)
{
/* Wumbo is now the default, FIXME: depreacted_apis! */
return NULL;
}
static char *opt_set_dual_fund(struct lightningd *ld)
{
/* Dual funding implies static remotkey */
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_STATIC_REMOTEKEY))));
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_DUAL_FUND))));
return NULL;
}
static char *opt_set_splicing(struct lightningd *ld)
{
/* Splicing requires STFU to be enabled */
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_QUIESCE))));
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_EXPERIMENTAL_SPLICE))));
return NULL;
}
static char *opt_set_onion_messages(struct lightningd *ld)
{
if (!opt_deprecated_ok(ld, "experimental-onion-messages", NULL,
"v24.08", "v25.02"))
return "--experimental-onion-message is now enabled by default";
return NULL;
}
static char *opt_set_shutdown_wrong_funding(struct lightningd *ld)
{
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_SHUTDOWN_WRONG_FUNDING))));
return NULL;
}
static char *opt_set_peer_storage(struct lightningd *ld)
{
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_PROVIDE_PEER_BACKUP_STORAGE))));
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_WANT_PEER_BACKUP_STORAGE))));
return NULL;
}
static char *opt_set_quiesce(struct lightningd *ld)
{
feature_set_or(ld->our_features,
take(feature_set_for_feature(NULL,
OPTIONAL_FEATURE(OPT_QUIESCE))));
return NULL;
}
static char *opt_set_anchor_zero_fee_htlc_tx(struct lightningd *ld)
{
if (!opt_deprecated_ok(ld, "experimental-anchors", NULL,
"v24.02", "v25.02"))
return "--experimental-anchors is now enabled by default";
return NULL;
}
static char *opt_set_offers(struct lightningd *ld)
{
ld->config.exp_offers = true;
return NULL;
}
static char *opt_set_db_upgrade(const char *arg, struct lightningd *ld)
{
ld->db_upgrade_ok = tal(ld, bool);
return opt_set_bool_arg(arg, ld->db_upgrade_ok);
}
static char *opt_add_api_beg(const char *arg, struct lightningd *ld)
{
tal_arr_expand(&ld->api_begs, arg);
return NULL;
}
static char *opt_set_announce_dns(const char *optarg, struct lightningd *ld)
{
if (!opt_deprecated_ok(ld, "announce-addr-dns", NULL,
"v23.08", "v24.08"))
return "--announce-addr-dns has been deprecated, use --bind-addr=dns:...";
return opt_set_bool_arg(optarg, &ld->announce_dns);
}
char *hsm_secret_arg(const tal_t *ctx,
const char *arg,
const u8 **hsm_secret)
{
char *codex32_fail;
struct codex32 *codex32;
/* We accept hex, or codex32. hex is very very very unlikely to
* give a valid codex32, so try that first */
codex32 = codex32_decode(tmpctx, "cl", arg, &codex32_fail);
if (codex32) {
*hsm_secret = tal_steal(ctx, codex32->payload);
if (codex32->threshold != 0
|| codex32->type != CODEX32_ENCODING_SECRET) {
return "This is only one share of codex32!";
}
} else {
/* Not codex32, was it hex? */
*hsm_secret = tal_hexdata(ctx, arg, strlen(arg));
if (!*hsm_secret) {
/* It's not hex! So give codex32 error */
return codex32_fail;
}
}
if (tal_count(*hsm_secret) != 32)
return "Invalid length: must be 32 bytes";
return NULL;
}
static char *opt_set_codex32_or_hex(const char *arg, struct lightningd *ld)
{
char *err;
const u8 *payload;
err = hsm_secret_arg(tmpctx, arg, &payload);
if (err)
return err;
/* Checks if hsm_secret exists */
int fd = open("hsm_secret", O_CREAT|O_EXCL|O_WRONLY, 0400);
if (fd < 0) {
/* Don't do anything if the file already exists. */
if (errno == EEXIST)
return tal_fmt(tmpctx, "hsm_secret already exists!");
return tal_fmt(tmpctx, "Creating hsm_secret: %s",
strerror(errno));
}
if (!write_all(fd, payload, tal_count(payload))) {
unlink_noerr("hsm_secret");
return tal_fmt(tmpctx, "Writing HSM: %s",
strerror(errno));
}
/*~ fsync (mostly!) ensures that the file has reached the disk. */
if (fsync(fd) != 0) {
unlink_noerr("hsm_secret");
return tal_fmt(tmpctx, "fsync: %s", strerror(errno));
}
/*~ This should never fail if fsync succeeded. But paranoia good, and
* bugs exist. */
if (close(fd) != 0) {
unlink_noerr("hsm_secret");
return tal_fmt(tmpctx, "closing: %s", strerror(errno));
}
/*~ We actually need to sync the *directory itself* to make sure the
* file exists! You're only allowed to open directories read-only in
* modern Unix though. */
fd = open(".", O_RDONLY);
if (fd < 0) {
unlink_noerr("hsm_secret");
return tal_fmt(tmpctx, "opening: %s", strerror(errno));
}
if (fsync(fd) != 0) {
unlink_noerr("hsm_secret");
return tal_fmt(tmpctx, "fsyncdir: %s", strerror(errno));
}
close(fd);
ld->recover = tal_strdup(ld, arg);
opt_set_offline(ld);
return NULL;
}
static void register_opts(struct lightningd *ld)
{
/* This happens before plugins started */
clnopt_noarg("--test-daemons-only", OPT_EARLY|OPT_EXITS,
test_subdaemons_and_exit,
ld,
"Test that subdaemons can be run, then exit immediately");
/* We need to know this even before we talk to plugins */
clnopt_witharg("--allow-deprecated-apis",
OPT_EARLY|OPT_SHOWBOOL,
opt_set_bool_arg, opt_show_bool,
&ld->deprecated_ok,
"Enable deprecated options, JSONRPC commands, fields, etc.");
/* Register plugins as an early args, so we can initialize them and have
* them register more command line options */
clnopt_witharg("--plugin", OPT_MULTI|OPT_EARLY,
opt_add_plugin, NULL, ld,
"Add a plugin to be run (can be used multiple times)");
clnopt_witharg("--plugin-dir", OPT_MULTI|OPT_EARLY,
opt_add_plugin_dir,
NULL, ld,
"Add a directory to load plugins from (can be used multiple times)");
opt_register_early_noarg("--clear-plugins", opt_clear_plugins,
ld,
"Remove all plugins added before this option");
clnopt_witharg("--disable-plugin", OPT_MULTI|OPT_EARLY,
opt_disable_plugin,
NULL, ld,
"Disable a particular plugin by filename/name");
clnopt_witharg("--important-plugin", OPT_MULTI|OPT_EARLY,
opt_important_plugin,
NULL, ld,
"Add an important plugin to be run (can be used multiple times). Die if the plugin dies.");
/* Early, as it suppresses DNS lookups from cmdline too. */
clnopt_witharg("--always-use-proxy", OPT_EARLY|OPT_SHOWBOOL,
opt_set_bool_arg, opt_show_bool,
&ld->always_use_proxy, "Use the proxy always");
/* This immediately makes is a daemon. */
opt_register_early_noarg("--daemon", opt_start_daemon, ld,
"Run in the background, suppress stdout/stderr");
opt_register_early_arg("--wallet", opt_set_talstr, NULL,
&ld->wallet_dsn,
"Location of the wallet database.");
opt_register_early_arg("--recover", opt_set_codex32_or_hex, NULL,
ld,
"Populate hsm_secret with the given codex32 secret"
" and starts the node in `offline` mode.");
/* This affects our features, so set early. */
opt_register_early_noarg("--large-channels|--wumbo",
opt_set_wumbo, ld,
opt_hidden);
opt_register_early_noarg("--experimental-dual-fund",
opt_set_dual_fund, ld,
"experimental: Advertise dual-funding"
" and allow peers to establish channels"
" via v2 channel open protocol.");
opt_register_early_noarg("--experimental-splicing",
opt_set_splicing, ld,
"experimental: Enables the ability to resize"
" channels using splicing");
/* This affects our features, so set early. */
opt_register_early_noarg("--experimental-onion-messages",
opt_set_onion_messages, ld,
opt_hidden);
opt_register_early_noarg("--experimental-offers",
opt_set_offers, ld,
"EXPERIMENTAL: enable send and receive of offers");
opt_register_early_noarg("--experimental-shutdown-wrong-funding",
opt_set_shutdown_wrong_funding, ld,
"EXPERIMENTAL: allow shutdown with alternate txids");
opt_register_early_noarg("--experimental-peer-storage",
opt_set_peer_storage, ld,
"EXPERIMENTAL: enable peer backup storage and restore");
opt_register_early_noarg("--experimental-quiesce",
opt_set_quiesce, ld,
"experimental: Advertise ability to quiesce"
" channels.");
opt_register_early_noarg("--experimental-anchors",
opt_set_anchor_zero_fee_htlc_tx, ld,
opt_hidden);
clnopt_witharg("--announce-addr-dns", OPT_EARLY|OPT_SHOWBOOL,
opt_set_bool_arg, opt_show_bool,
&ld->announce_dns,
opt_hidden);
clnopt_noarg("--help|-h", OPT_EXITS,
opt_lightningd_usage, ld, "Print this message.");
opt_register_arg("--rgb", opt_set_rgb, opt_show_rgb, ld,
"RRGGBB hex color for node");
clnopt_witharg("--alias", OPT_KEEP_WHITESPACE, opt_set_alias,
opt_show_alias, ld, "Up to 32-byte alias for node");
opt_register_arg("--pid-file=<file>", opt_set_talstr, opt_show_charp,
&ld->pidfile,
"Specify pid file");
clnopt_witharg("--ignore-fee-limits", OPT_SHOWBOOL,
opt_set_bool_arg, opt_show_bool,
&ld->config.ignore_fee_limits,
"(DANGEROUS) allow peer to set any feerate");
clnopt_witharg("--watchtime-blocks", OPT_SHOWINT, opt_set_u32, opt_show_u32,
&ld->config.locktime_blocks,
"Blocks before peer can unilaterally spend funds");
opt_register_arg("--max-locktime-blocks", opt_set_max_htlc_cltv, NULL,
ld, opt_hidden);
clnopt_witharg("--funding-confirms", OPT_SHOWINT, opt_set_u32, opt_show_u32,
&ld->config.anchor_confirms,
"Confirmations required for funding transaction");
clnopt_witharg("--require-confirmed-inputs", OPT_SHOWBOOL,
opt_set_bool_arg, opt_show_bool,
&ld->config.require_confirmed_inputs,
"Confirmations required for inputs to funding transaction (v2 opens only)");
clnopt_witharg("--cltv-delta", OPT_SHOWINT, opt_set_u32, opt_show_u32,
&ld->config.cltv_expiry_delta,
"Number of blocks for cltv_expiry_delta");
clnopt_witharg("--cltv-final", OPT_SHOWINT, opt_set_u32, opt_show_u32,
&ld->config.cltv_final,
"Number of blocks for final cltv_expiry");
clnopt_witharg("--commit-time=<millseconds>", OPT_SHOWINT,
opt_set_u32, opt_show_u32,
&ld->config.commit_time_ms,
"Time after changes before sending out COMMIT");
clnopt_witharg("--fee-base", OPT_SHOWINT, opt_set_u32, opt_show_u32,
&ld->config.fee_base,
"Millisatoshi minimum to charge for HTLC");
clnopt_witharg("--rescan", OPT_SHOWINT, opt_set_s32, opt_show_s32,
&ld->config.rescan,
"Number of blocks to rescan from the current head, or "
"absolute blockheight if negative");
clnopt_witharg("--fee-per-satoshi", OPT_SHOWINT, opt_set_u32, opt_show_u32,
&ld->config.fee_per_satoshi,
"Microsatoshi fee for every satoshi in HTLC");
clnopt_witharg("--htlc-minimum-msat", OPT_SHOWMSATS,
opt_set_msat, opt_show_msat,
&ld->config.htlc_minimum_msat,
"The default minimal value an HTLC must carry in order to be forwardable for new channels");
clnopt_witharg("--htlc-maximum-msat", OPT_SHOWMSATS,
opt_set_msat, opt_show_msat,
&ld->config.htlc_maximum_msat,
"The default maximal value an HTLC must carry in order to be forwardable for new channel");
clnopt_witharg("--max-concurrent-htlcs", OPT_SHOWINT, opt_set_u32, opt_show_u32,
&ld->config.max_concurrent_htlcs,
"Number of HTLCs one channel can handle concurrently. Should be between 1 and 483");
clnopt_witharg("--max-dust-htlc-exposure-msat", OPT_SHOWMSATS,
opt_set_msat,
opt_show_msat, &ld->config.max_dust_htlc_exposure_msat,
"Max HTLC amount that can be trimmed");
clnopt_witharg("--min-capacity-sat", OPT_SHOWINT|OPT_DYNAMIC,
opt_set_u64_dynamic, opt_show_u64,
&ld->config.min_capacity_sat,
"Minimum capacity in satoshis for accepting channels");
clnopt_witharg("--addr", OPT_MULTI, opt_add_addr, NULL,
ld,
"Set an IP address (v4 or v6) to listen on and announce to the network for incoming connections");
clnopt_witharg("--bind-addr", OPT_MULTI, opt_add_bind_addr, NULL,
ld,
"Set an IP address (v4 or v6) to listen on, but not announce");
clnopt_witharg("--announce-addr", OPT_MULTI, opt_add_announce_addr, NULL,
ld,
"Set an IP address (v4 or v6) or .onion v3 to announce, but not listen on");
opt_register_arg("--announce-addr-discovered", opt_set_autobool_arg, opt_show_autobool,
&ld->config.ip_discovery,
"Explicitly turns IP discovery 'on' or 'off'.");
clnopt_witharg("--announce-addr-discovered-port", OPT_SHOWINT,
opt_set_uintval,
opt_show_uintval, &ld->config.ip_discovery_port,
"Sets the public TCP port to use for announcing discovered IPs.");
opt_register_noarg("--offline", opt_set_offline, ld,
"Start in offline-mode (do not automatically reconnect and do not accept incoming connections)");
clnopt_witharg("--autolisten", OPT_SHOWBOOL,
opt_set_bool_arg, opt_show_bool,
&ld->autolisten,
"If true, listen on default port and announce if it seems to be a public interface");
opt_register_arg("--proxy", opt_add_proxy_addr, NULL,
ld,"Set a socks v5 proxy IP address and port");
opt_register_arg("--tor-service-password", opt_set_talstr, NULL,
&ld->tor_service_password,
"Set a Tor hidden service password");
opt_register_arg("--accept-htlc-tlv-types",
opt_set_accept_extra_tlv_types, NULL, ld,
opt_hidden);
clnopt_witharg("--accept-htlc-tlv-type", OPT_MULTI|OPT_SHOWINT,
opt_add_accept_htlc_tlv, NULL,
&ld->accept_extra_tlv_types,
"HTLC TLV type to accept (can be used multiple times)");
opt_register_early_noarg("--disable-dns", opt_set_invbool, &ld->config.use_dns,
"Disable DNS lookups of peers");
opt_register_noarg("--encrypted-hsm", opt_set_hsm_password, ld,
"Set the password to encrypt hsm_secret with. If no password is passed through command line, "
"you will be prompted to enter it.");
opt_register_arg("--rpc-file-mode", &opt_set_mode, &opt_show_mode,
&ld->rpc_filemode,
"Set the file mode (permissions) for the "
"JSON-RPC socket");
opt_register_arg("--force-feerates",
opt_force_feerates, NULL, ld,
"Set testnet/regtest feerates in sats perkw, opening/mutual_close/unlateral_close/delayed_to_us/htlc_resolution/penalty: if fewer specified, last number applies to remainder");
clnopt_witharg("--commit-fee", OPT_SHOWINT,
opt_set_u64, opt_show_u64, &ld->config.commit_fee_percent,
"Percentage of fee to request for their commitment");
clnopt_witharg("--commit-feerate-offset", OPT_SHOWINT,
opt_set_u32, opt_show_u32, &ld->config.feerate_offset,
"Additional feerate per kw to apply to feerate updates "
"as the channel opener");
clnopt_witharg("--min-emergency-msat", OPT_SHOWMSATS,
opt_set_sat_nondust, opt_show_sat, &ld->emergency_sat,
"Amount to leave in wallet for spending anchor closes");
clnopt_witharg("--subdaemon",
OPT_MULTI,
opt_subdaemon, NULL,
ld, "Arg specified as SUBDAEMON:PATH. "
"Specifies an alternate subdaemon binary. "
"If the supplied path is relative the subdaemon "
"binary is found in the working directory. "
"This option may be specified multiple times. "
"For example, "
"--subdaemon=hsmd:remote_signer "
"would use a hypothetical remote signing subdaemon.");
opt_register_noarg("--experimental-upgrade-protocol",
opt_set_bool, &ld->experimental_upgrade_protocol,
"experimental: allow channel types to be upgraded on reconnect");
opt_register_noarg("--invoices-onchain-fallback",
opt_set_bool, &ld->unified_invoices,
"Include an onchain address in invoices and mark them as paid if payment is received on-chain");
clnopt_witharg("--database-upgrade", OPT_SHOWBOOL,
opt_set_db_upgrade, NULL,
ld,
"Set to true to allow database upgrades even on non-final releases (WARNING: you won't be able to downgrade!)");
clnopt_witharg("--i-promise-to-fix-broken-api-user",
OPT_MULTI,
opt_add_api_beg, NULL,
ld,
"Re-enable a long-deprecated API (which will be removed entirely next version!)");
opt_register_logging(ld);
dev_register_opts(ld);
}
/* We are in ld->config_netdir when this is run! */
static void promote_missing_files(struct lightningd *ld)
{
#ifdef COMPAT_V073
DIR *d_from;
struct dirent *d;
struct stat st;
/* If hsm_secret already exists, we assume we're ugpraded */
if (stat("hsm_secret", &st) == 0)
return;
if (errno != ENOENT)
err(1, "Looking for hsm_secret in lightning dir");
/* If hsm doesn't exist in basedir, we've nothing to upgrade. */
if (stat(path_join(tmpctx, ld->config_basedir, "hsm_secret"), &st) != 0)
return;
d_from = opendir(ld->config_basedir);
if (!d_from)
err(1, "Opening %s", ld->config_basedir);
while ((d = readdir(d_from)) != NULL) {
const char *fullname;
/* Ignore this directory and upper one, and leave
* config and pid files */
if (streq(d->d_name, ".")
|| streq(d->d_name, "..")
|| streq(d->d_name, "config")
|| strends(d->d_name, ".pid"))
continue;
fullname = path_join(tmpctx, ld->config_basedir, d->d_name);
/* Simply remove rpc file: if they use --rpc-file to place it
* here explicitly it will get recreated, but moving it would
* be confusing as it would be unused. */
if (streq(d->d_name, "lightning-rpc")) {
if (unlink(fullname) != 0)
log_unusual(ld->log, "Could not unlink %s: %s",
fullname, strerror(errno));
continue;
}
/* Ignore any directories. */
if (lstat(fullname, &st) != 0)
errx(1, "Could not stat %s", fullname);
if ((st.st_mode & S_IFMT) == S_IFDIR)
continue;
/* Check we don't overwrite something in this dir! */
if (lstat(d->d_name, &st) != -1)
errx(1, "Refusing to overwrite %s into %s/",
fullname, ld->config_netdir);
log_unusual(ld->log, "Moving %s into %s/",
d->d_name, ld->config_netdir);
if (rename(fullname, d->d_name) != 0)
err(1, "Could not move %s/%s to %s",
ld->config_basedir, d->d_name, ld->config_netdir);
}
closedir(d_from);
#endif /* COMPAT_V073 */
}
/* Names stolen from https://github.com/ternus/nsaproductgenerator/blob/master/nsa.js */
static const char *codename_adjective[]
= { "LOUD", "RED", "BLUE", "GREEN", "YELLOW", "IRATE", "ANGRY", "PEEVED",
"HAPPY", "SLIMY", "SLEEPY", "JUNIOR", "SLICKER", "UNITED", "SOMBER",
"BIZARRE", "ODD", "WEIRD", "WRONG", "LATENT", "CHILLY", "STRANGE", "LOUD",
"SILENT", "HOPPING", "ORANGE", "VIOLET", "VIOLENT", "LIGHTNING" };
static const char *codename_noun[]
= { "WHISPER", "FELONY", "MOON", "SUCKER", "PENGUIN", "WAFFLE", "MAESTRO",
"NIGHT", "TRINITY", "DEITY", "MONKEY", "ARK", "SQUIRREL", "IRON", "BOUNCE",
"FARM", "CHEF", "TROUGH", "NET", "TRAWL", "GLEE", "WATER", "SPORK", "PLOW",
"FEED", "SOUFFLE", "ROUTE", "BAGEL", "MONTANA", "ANALYST", "AUTO", "WATCH",
"PHOTO", "YARD", "SOURCE", "MONKEY", "SEAGULL", "TOLL", "SPAWN", "GOPHER",
"CHIPMUNK", "SET", "CALENDAR", "ARTIST", "CHASER", "SCAN", "TOTE", "BEAM",
"ENTOURAGE", "GENESIS", "WALK", "SPATULA", "RAGE", "FIRE", "MASTER" };
void setup_color_and_alias(struct lightningd *ld)
{
if (!ld->rgb)
/* You can't get much red by default */
ld->rgb = tal_dup_arr(ld, u8, ld->our_nodeid.k, 3, 0);
if (!ld->alias) {
u64 adjective, noun;
char *name;
memcpy(&adjective, ld->our_nodeid.k+3, sizeof(adjective));
memcpy(&noun, ld->our_nodeid.k+3+sizeof(adjective), sizeof(noun));
noun %= ARRAY_SIZE(codename_noun);
adjective %= ARRAY_SIZE(codename_adjective);
/* Only use 32 characters */
name = tal_fmt(ld, "%s%s",
codename_adjective[adjective],
codename_noun[noun]);
if (ld->developer) {
assert(strlen(name) < 32);
int taillen = 31 - strlen(name);
if (taillen > strlen(version()))
taillen = strlen(version());
/* Fit as much of end of version() as possible */
tal_append_fmt(&name, "-%s",
version() + strlen(version()) - taillen);
}
assert(strlen(name) <= 32);
ld->alias = tal_arrz(ld, u8, 33);
strcpy((char*)ld->alias, name);
tal_free(name);
}
}
void handle_early_opts(struct lightningd *ld, int argc, char *argv[])
{
/* Make ccan/opt use tal for allocations */
setup_option_allocators();
/*~ List features immediately, before doing anything interesting */
clnopt_noarg("--list-features-only", OPT_EARLY|OPT_EXITS,
list_features_and_exit,
ld, "List the features configured, and exit immediately");
/*~ We need to know this super-early, as it controls other options */
clnopt_noarg("--developer", OPT_EARLY|OPT_SHOWBOOL,
opt_set_bool, &ld->developer,
"Enable developer commands/options, disable legacy APIs");
/*~ This does enough parsing to get us the base configuration options */
ld->configvars = initial_config_opts(ld, &argc, argv, true,
&ld->config_filename,
&ld->config_basedir,
&ld->config_netdir,
&ld->rpc_filename);
if (argc != 1)
errx(1, "no arguments accepted");
/* Copy in default config, to be modified by further options */
if (chainparams->testnet)
ld->config = testnet_config;
else
ld->config = mainnet_config;
/* No anchors if we're elements */
if (chainparams->is_elements) {
feature_set_sub(ld->our_features,
feature_set_for_feature(tmpctx,
OPTIONAL_FEATURE(OPT_ANCHORS_ZERO_FEE_HTLC_TX)));
}
/* Set the ln_port given from chainparams */
ld->config.ip_discovery_port = chainparams->ln_port;
/* Now we can initialize wallet_dsn */
ld->wallet_dsn = tal_fmt(ld, "sqlite3://%s/lightningd.sqlite3",
ld->config_netdir);
/* Set default PID file name to be per-network (in base dir) */
ld->pidfile = path_join(ld, ld->config_basedir,
tal_fmt(tmpctx, "lightningd-%s.pid",
chainparams->network_name));
/*~ Move into config dir: this eases path manipulation and also
* gives plugins a good place to store their stuff. */
if (chdir(ld->config_netdir) != 0) {
log_info(ld->log, "Creating configuration directory %s",
ld->config_netdir);
/* We assume home dir exists, so only create two. */
if (mkdir(ld->config_basedir, 0700) != 0 && errno != EEXIST)
fatal("Could not make directory %s: %s",
ld->config_basedir,
strerror(errno));
if (mkdir(ld->config_netdir, 0700) != 0)
fatal("Could not make directory %s: %s",
ld->config_netdir, strerror(errno));
if (chdir(ld->config_netdir) != 0)
fatal("Could not change directory %s: %s",
ld->config_netdir, strerror(errno));
}
/* --developer changes default for APIs */
if (ld->developer)
ld->deprecated_ok = false;
/*~ We move files from old locations on first upgrade. */
promote_missing_files(ld);
/*~ The ccan/opt code requires registration then parsing; we
* mimic this API here, even though they're on separate lines.*/
register_opts(ld);
/* Now, first-pass of parsing. But only handle the early
* options (testnet, plugins etc), others may be added on-demand */
parse_configvars_early(ld->configvars, ld->developer);
/* Finalize the logging subsystem now. */
logging_options_parsed(ld->log_book);
}
/* Free *str, set *str to copy with `cln` prepended */
static void prefix_cln(char **str STEALS)
{
char *newstr = tal_fmt(tal_parent(*str), "cln%s", *str);
tal_free(*str);
*str = newstr;
}
/* Due to a conflict between the widely-deployed clightning-rest plugin and
* our own clnrest plugin, and people wanting to run both, in v23.11 we
* renamed some options. This breaks perfectly working v23.08 deployments who
* don't care about clightning-rest, so we work around it here. */
static void fixup_clnrest_options(struct lightningd *ld)
{
for (size_t i = 0; i < tal_count(ld->configvars); i++) {
struct configvar *cv = ld->configvars[i];
/* These worked for v23.08 */
if (!strstarts(cv->configline, "rest-port=")
&& !strstarts(cv->configline, "rest-protocol=")
&& !strstarts(cv->configline, "rest-host=")
&& !strstarts(cv->configline, "rest-certs="))
continue;
/* Did some (plugin) claim it? */
if (opt_find_long(cv->configline, cast_const2(const char **, &cv->optarg)))
continue;
if (!opt_deprecated_ok(ld,
tal_strndup(tmpctx, cv->configline,
strcspn(cv->configline, "=")),
"clnrest-prefix",
"v23.11", "v24.11"))
continue;
log_unusual(ld->log, "Option %s deprecated in v23.11, renaming to cln%s",
cv->configline, cv->configline);
prefix_cln(&cv->configline);
}
}
void handle_opts(struct lightningd *ld)
{
fixup_clnrest_options(ld);
/* Now we know all the options, finish parsing and finish
* populating ld->configvars with cmdline. */
parse_configvars_final(ld->configvars, true, ld->developer);
/* We keep a separate variable rather than overriding always_use_proxy,
* so listconfigs shows the correct thing. */
if (tal_count(ld->proposed_wireaddr) != 0
&& all_tor_addresses(ld->proposed_wireaddr)) {
ld->pure_tor_setup = true;
if (!ld->proxyaddr)
log_info(ld->log, "Pure Tor setup with no --proxy:"
" you won't be able to make connections out");
}
check_config(ld);
}
static void json_add_opt_addrs(struct json_stream *response,
const char *name0,
const struct wireaddr_internal *wireaddrs,
const enum addr_listen_announce *listen_announce,
enum addr_listen_announce ala)
{
for (size_t i = 0; i < tal_count(wireaddrs); i++) {
if (listen_announce[i] != ala)
continue;
json_add_string(response,
name0,
fmt_wireaddr_internal(name0, wireaddrs+i));
}
}
static void json_add_opt_log_to_files(struct json_stream *response,
const char *name0,
const char **logfiles)
{
for (size_t i = 0; i < tal_count(logfiles); i++)
json_add_string(response, name0, logfiles[i]);
}
struct json_add_opt_alt_subdaemon_args {
const char *name0;
struct json_stream *response;
};
static bool json_add_opt_alt_subdaemon(const char *member,
const char *value,
struct json_add_opt_alt_subdaemon_args *argp)
{
json_add_string(argp->response,
argp->name0,
tal_fmt(argp->name0, "%s:%s", member, value));
return true;
}
static void json_add_opt_subdaemons(struct json_stream *response,
const char *name0,
alt_subdaemon_map *alt_subdaemons)
{
struct json_add_opt_alt_subdaemon_args args;
args.name0 = name0;
args.response = response;
strmap_iterate(alt_subdaemons, json_add_opt_alt_subdaemon, &args);
}
/* Canonicalize value they've given */
bool opt_canon_bool(const char *val)
{
bool b;
opt_set_bool_arg(val, &b);
return b;
}
void add_config_deprecated(struct lightningd *ld,
struct json_stream *response,
const struct opt_table *opt,
const char *name, size_t len)
{
char *name0 = tal_strndup(tmpctx, name, len);
char *answer = NULL;
char buf[4096 + sizeof("...")];
/* Ignore dev settings. */
if (opt->type & OPT_DEV)
return;
/* Ignore things which just exit */
if (opt->type & OPT_EXITS)
return;
/* Ignore hidden options (deprecated) */
if (opt->desc == opt_hidden)
return;
/* We print plugin options under plugins[] or important-plugins[] */
if (is_plugin_opt(opt))
return;
if (opt->type & OPT_NOARG) {
if (opt->cb == (void *)opt_clear_plugins) {
/* FIXME: we can't recover this. */
} else if (is_restricted_ignored(opt->cb)) {
/* --testnet etc, turned into --network=. */
} else if (opt->cb == (void *)opt_set_bool) {
const bool *b = opt->u.carg;
json_add_bool(response, name0, *b);
} else if (opt->cb == (void *)opt_set_invbool) {
const bool *b = opt->u.carg;
json_add_bool(response, name0, !*b);
} else if (opt->cb == (void *)opt_set_offline) {
json_add_bool(response, name0,
!ld->reconnect && !ld->listen);
} else if (opt->cb == (void *)opt_start_daemon) {
json_add_bool(response, name0,
ld->daemon_parent_fd != -1);
} else if (opt->cb == (void *)opt_set_hsm_password) {
json_add_bool(response, "encrypted-hsm", ld->encrypted_hsm);
} else if (opt->cb == (void *)opt_set_wumbo) {
json_add_bool(response, name0,
feature_offered(ld->our_features
->bits[INIT_FEATURE],
OPT_LARGE_CHANNELS));
} else if (opt->cb == (void *)opt_set_dual_fund) {
json_add_bool(response, name0,
feature_offered(ld->our_features
->bits[INIT_FEATURE],
OPT_DUAL_FUND));
} else if (opt->cb == (void *)opt_set_splicing) {
json_add_bool(response, name0,
feature_offered(ld->our_features
->bits[INIT_FEATURE],
OPT_EXPERIMENTAL_SPLICE));
} else if (opt->cb == (void *)opt_set_onion_messages) {
json_add_bool(response, name0,
feature_offered(ld->our_features
->bits[INIT_FEATURE],
OPT_ONION_MESSAGES));
} else if (opt->cb == (void *)opt_set_offers) {
json_add_bool(response, name0, ld->config.exp_offers);
} else if (opt->cb == (void *)opt_set_shutdown_wrong_funding) {
json_add_bool(response, name0,
feature_offered(ld->our_features
->bits[INIT_FEATURE],
OPT_SHUTDOWN_WRONG_FUNDING));
} else if (opt->cb == (void *)opt_set_peer_storage) {
json_add_bool(response, name0,
feature_offered(ld->our_features
->bits[INIT_FEATURE],
OPT_PROVIDE_PEER_BACKUP_STORAGE));
} else if (opt->cb == (void *)opt_set_quiesce) {
json_add_bool(response, name0,
feature_offered(ld->our_features
->bits[INIT_FEATURE],
OPT_QUIESCE));
}
/* We ignore future additions, since these are deprecated anyway! */
} else if (opt->type & OPT_HASARG) {
if (opt->show == (void *)opt_show_charp) {
if (*(char **)opt->u.carg)
/* Don't truncate or quote! */
answer = tal_strdup(tmpctx,
*(char **)opt->u.carg);
} else if (opt->show) {
strcpy(buf + sizeof(buf) - sizeof("..."), "...");
if (!opt->show(buf, sizeof(buf) - sizeof("..."), opt->u.carg))
buf[0] = '\0';
if ((opt->type & OPT_SHOWINT)
|| (opt->type & OPT_SHOWMSATS)) {
if (streq(buf, "")
|| strspn(buf, "-0123456789.") != strlen(buf))
errx(1, "Bad literal for %s: %s", name0, buf);
json_add_primitive(response, name0, buf);
return;
} else if (opt->type & OPT_SHOWBOOL) {
/* We allow variants here. Json-ize */
json_add_bool(response, name0, opt_canon_bool(buf));
return;
}
answer = buf;
} else if (opt->cb_arg == (void *)opt_set_talstr
|| opt->cb_arg == (void *)opt_set_charp) {
const char *arg = *(char **)opt->u.carg;
if (arg)
answer = tal_fmt(name0, "%s", arg);
} else if (opt->cb_arg == (void *)arg_log_to_file) {
if (ld->logfiles)
json_add_opt_log_to_files(response, name0, ld->logfiles);
} else if (opt->cb_arg == (void *)opt_add_addr) {
json_add_opt_addrs(response, name0,
ld->proposed_wireaddr,
ld->proposed_listen_announce,
ADDR_LISTEN_AND_ANNOUNCE);
return;
} else if (opt->cb_arg == (void *)opt_add_bind_addr) {
json_add_opt_addrs(response, name0,
ld->proposed_wireaddr,
ld->proposed_listen_announce,
ADDR_LISTEN);
return;
} else if (opt->cb_arg == (void *)opt_add_announce_addr) {
json_add_opt_addrs(response, name0,
ld->proposed_wireaddr,
ld->proposed_listen_announce,
ADDR_ANNOUNCE);
return;
} else if (opt->cb_arg == (void *)opt_subdaemon) {
json_add_opt_subdaemons(response, name0,
&ld->alt_subdaemons);
return;
} else if (opt->cb_arg == (void *)opt_add_proxy_addr) {
if (ld->proxyaddr)
answer = fmt_wireaddr(name0, ld->proxyaddr);
} else if (opt->cb_arg == (void *)opt_add_plugin) {
json_add_opt_plugins(response, ld->plugins);
} else if (opt->cb_arg == (void *)opt_log_level) {
json_add_opt_log_levels(response, ld->log_book);
} else if (opt->cb_arg == (void *)opt_disable_plugin) {
json_add_opt_disable_plugins(response, ld->plugins);
} else if (opt->cb_arg == (void *)opt_force_feerates) {
answer = fmt_force_feerates(name0, ld->force_feerates);
} else if (opt->cb_arg == (void *)opt_set_db_upgrade) {
if (ld->db_upgrade_ok)
json_add_bool(response, name0,
*ld->db_upgrade_ok);
return;
} else if (opt->cb_arg == (void *)opt_set_announce_dns) {
json_add_bool(response, name0, ld->announce_dns);
return;
} else if (opt->cb_arg == (void *)opt_important_plugin) {
/* Do nothing, this is already handled by
* opt_add_plugin. */
} else if (opt->cb_arg == (void *)opt_add_plugin_dir) {
/* FIXME: We actually treat it as if they specified
* --plugin for each one, so ignore these */
} else if (opt->cb_arg == (void *)opt_add_accept_htlc_tlv) {
/* We ignore this: it's printed below: */
} else if (opt->cb_arg == (void *)opt_set_accept_extra_tlv_types) {
for (size_t i = 0;
i < tal_count(ld->accept_extra_tlv_types);
i++) {
if (i == 0)
answer = tal_fmt(name0, "%"PRIu64,
ld->accept_extra_tlv_types[i]);
else
tal_append_fmt(&answer, ",%"PRIu64,
ld->accept_extra_tlv_types[i]);
}
}
/* We ignore future additions, since these are deprecated anyway! */
}
if (answer) {
struct json_escape *esc = json_escape(NULL, answer);
json_add_escaped_string(response, name0, take(esc));
}
}
bool is_known_opt_cb_arg(char *(*cb_arg)(const char *, void *))
{
return cb_arg == (void *)opt_set_talstr
|| cb_arg == (void *)opt_add_proxy_addr
|| cb_arg == (void *)opt_force_feerates
|| cb_arg == (void *)opt_set_accept_extra_tlv_types
|| cb_arg == (void *)opt_add_plugin
|| cb_arg == (void *)opt_add_plugin_dir
|| cb_arg == (void *)opt_important_plugin
|| cb_arg == (void *)opt_disable_plugin
|| cb_arg == (void *)opt_add_addr
|| cb_arg == (void *)opt_add_bind_addr
|| cb_arg == (void *)opt_add_announce_addr
|| cb_arg == (void *)opt_subdaemon
|| cb_arg == (void *)opt_set_db_upgrade
|| cb_arg == (void *)arg_log_to_file
|| cb_arg == (void *)opt_add_accept_htlc_tlv
|| cb_arg == (void *)opt_set_codex32_or_hex
|| cb_arg == (void *)opt_subd_dev_disconnect
|| cb_arg == (void *)opt_add_api_beg
|| cb_arg == (void *)opt_force_featureset
|| cb_arg == (void *)opt_force_privkey
|| cb_arg == (void *)opt_force_bip32_seed
|| cb_arg == (void *)opt_force_channel_secrets
|| cb_arg == (void *)opt_force_tmp_channel_id;
}
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