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#include "gossip_store.h"
#include <bitcoin/chainparams.h>
#include <ccan/array_size/array_size.h>
#include <ccan/crc32c/crc32c.h>
#include <ccan/endian/endian.h>
#include <ccan/noerr/noerr.h>
#include <ccan/read_write_all/read_write_all.h>
#include <ccan/tal/str/str.h>
#include <common/gossip_store.h>
#include <common/private_channel_announcement.h>
#include <common/status.h>
#include <common/type_to_string.h>
#include <common/utils.h>
#include <errno.h>
#include <fcntl.h>
#include <gossipd/gossip_store_wiregen.h>
#include <gossipd/gossipd_peerd_wiregen.h>
#include <gossipd/gossipd_wiregen.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/uio.h>
#include <unistd.h>
#include <wire/peer_wire.h>
#include <wire/wire.h>
#define GOSSIP_STORE_TEMP_FILENAME "gossip_store.tmp"
struct gossip_store {
/* This is false when we're loading */
bool writable;
int fd;
u8 version;
/* Offset of current EOF */
u64 len;
/* Counters for entries in the gossip_store entries. This is used to
* decide whether we should rewrite the on-disk store or not.
* Note: count includes deleted. */
size_t count, deleted;
/* Handle to the routing_state to retrieve additional information,
* should it be needed */
struct routing_state *rstate;
/* This is daemon->peers for handling to update_peers_broadcast_index */
struct list_head *peers;
/* Disable compaction if we encounter an error during a prior
* compaction */
bool disable_compaction;
/* Timestamp of store when we opened it (0 if we created it) */
u32 timestamp;
};
static void gossip_store_destroy(struct gossip_store *gs)
{
close(gs->fd);
}
#if HAVE_PWRITEV
static ssize_t gossip_pwritev(int fd, const struct iovec *iov, int iovcnt,
off_t offset)
{
return pwritev(fd, iov, iovcnt, offset);
}
#else /* Hello MacOS! */
static ssize_t gossip_pwritev(int fd, const struct iovec *iov, int iovcnt,
off_t offset)
{
u8 *buf;
size_t len;
ssize_t ret;
/* Make a temporary linear buffer to fall back to pwrite() */
len = 0;
for (size_t i = 0; i < iovcnt; i++)
len += iov[i].iov_len;
buf = tal_arr(NULL, u8, len);
len = 0;
for (size_t i = 0; i < iovcnt; i++) {
memcpy(buf + len, iov[i].iov_base, iov[i].iov_len);
len += iov[i].iov_len;
}
ret = pwrite(fd, buf, len, offset);
tal_free(buf);
return ret;
}
#endif /* !HAVE_PWRITEV */
static bool append_msg(int fd, const u8 *msg, u32 timestamp,
bool push, u64 *len)
{
struct gossip_hdr hdr;
u32 msglen;
struct iovec iov[2];
msglen = tal_count(msg);
hdr.len = cpu_to_be32(msglen);
if (push)
hdr.len |= CPU_TO_BE32(GOSSIP_STORE_LEN_PUSH_BIT);
hdr.crc = cpu_to_be32(crc32c(timestamp, msg, msglen));
hdr.timestamp = cpu_to_be32(timestamp);
/* Use pwritev so it will appear in store atomically */
iov[0].iov_base = &hdr;
iov[0].iov_len = sizeof(hdr);
iov[1].iov_base = (void *)msg;
iov[1].iov_len = msglen;
if (gossip_pwritev(fd, iov, ARRAY_SIZE(iov), *len) != sizeof(hdr) + msglen)
return false;
*len += sizeof(hdr) + msglen;
return true;
}
#ifdef COMPAT_V082
static u8 *mk_private_channelmsg(const tal_t *ctx,
struct routing_state *rstate,
const struct short_channel_id *scid,
const struct node_id *remote_node_id,
struct amount_sat sat,
const u8 *features)
{
const u8 *ann = private_channel_announcement(tmpctx, scid,
&rstate->local_id,
remote_node_id,
features);
return towire_gossip_store_private_channel(ctx, sat, ann);
}
/* The upgrade from version 7 is trivial */
static bool can_upgrade(u8 oldversion)
{
return oldversion == 7 || oldversion == 8;
}
static bool upgrade_field(u8 oldversion,
struct routing_state *rstate,
u8 **msg)
{
assert(can_upgrade(oldversion));
if (fromwire_peektype(*msg) == WIRE_GOSSIPD_LOCAL_ADD_CHANNEL_OBS
&& oldversion == 7) {
/* Append two 0 bytes, for (empty) feature bits */
tal_resizez(msg, tal_bytelen(*msg) + 2);
}
/* We turn these (v8) into a WIRE_GOSSIP_STORE_PRIVATE_CHANNEL */
if (fromwire_peektype(*msg) == WIRE_GOSSIPD_LOCAL_ADD_CHANNEL_OBS) {
struct short_channel_id scid;
struct node_id remote_node_id;
struct amount_sat satoshis;
u8 *features;
u8 *storemsg;
if (!fromwire_gossipd_local_add_channel_obs(tmpctx, *msg,
&scid,
&remote_node_id,
&satoshis,
&features))
return false;
storemsg = mk_private_channelmsg(tal_parent(*msg),
rstate,
&scid,
&remote_node_id,
satoshis,
features);
tal_free(*msg);
*msg = storemsg;
}
return true;
}
#else
static bool can_upgrade(u8 oldversion)
{
return false;
}
static bool upgrade_field(u8 oldversion,
struct routing_state *rstate,
u8 **msg)
{
abort();
}
#endif /* !COMPAT_V082 */
/* Read gossip store entries, copy non-deleted ones. This code is written
* as simply and robustly as possible! */
static u32 gossip_store_compact_offline(struct routing_state *rstate)
{
size_t count = 0, deleted = 0;
int old_fd, new_fd;
struct gossip_hdr hdr;
u8 oldversion, version = GOSSIP_STORE_VERSION;
struct stat st;
old_fd = open(GOSSIP_STORE_FILENAME, O_RDONLY);
if (old_fd == -1)
return 0;
if (fstat(old_fd, &st) != 0) {
status_broken("Could not stat gossip_store: %s",
strerror(errno));
goto close_old;
}
new_fd = open(GOSSIP_STORE_TEMP_FILENAME, O_RDWR|O_TRUNC|O_CREAT, 0600);
if (new_fd < 0) {
status_broken(
"Could not open file for gossip_store compaction");
goto close_old;
}
if (!read_all(old_fd, &oldversion, sizeof(oldversion))
|| (oldversion != version && !can_upgrade(oldversion))) {
status_broken("gossip_store_compact: bad version");
goto close_and_delete;
}
if (!write_all(new_fd, &version, sizeof(version))) {
status_broken("gossip_store_compact_offline: writing version to store: %s",
strerror(errno));
goto close_and_delete;
}
/* Read everything, write non-deleted ones to new_fd */
while (read_all(old_fd, &hdr, sizeof(hdr))) {
size_t msglen;
u8 *msg;
msglen = (be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_MASK);
msg = tal_arr(NULL, u8, msglen);
if (!read_all(old_fd, msg, msglen)) {
status_broken("gossip_store_compact_offline: reading msg len %zu from store: %s",
msglen, strerror(errno));
tal_free(msg);
goto close_and_delete;
}
if (be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_DELETED_BIT) {
deleted++;
tal_free(msg);
continue;
}
if (oldversion != version) {
if (!upgrade_field(oldversion, rstate, &msg)) {
tal_free(msg);
goto close_and_delete;
}
/* Recalc msglen and header */
msglen = tal_bytelen(msg);
hdr.len = cpu_to_be32(msglen);
hdr.crc = cpu_to_be32(crc32c(be32_to_cpu(hdr.timestamp),
msg, msglen));
}
/* Don't write out old tombstones */
if (fromwire_peektype(msg) == WIRE_GOSSIP_STORE_DELETE_CHAN) {
deleted++;
tal_free(msg);
continue;
}
if (!write_all(new_fd, &hdr, sizeof(hdr))
|| !write_all(new_fd, msg, msglen)) {
status_broken("gossip_store_compact_offline: writing msg len %zu to new store: %s",
msglen, strerror(errno));
tal_free(msg);
goto close_and_delete;
}
tal_free(msg);
count++;
}
if (close(new_fd) != 0) {
status_broken("gossip_store_compact_offline: closing new store: %s",
strerror(errno));
goto close_old;
}
close(old_fd);
if (rename(GOSSIP_STORE_TEMP_FILENAME, GOSSIP_STORE_FILENAME) != 0) {
status_broken("gossip_store_compact_offline: rename failed: %s",
strerror(errno));
}
status_debug("gossip_store_compact_offline: %zu deleted, %zu copied",
deleted, count);
return st.st_mtime;
close_and_delete:
close(new_fd);
close_old:
close(old_fd);
unlink(GOSSIP_STORE_TEMP_FILENAME);
return 0;
}
struct gossip_store *gossip_store_new(struct routing_state *rstate,
struct list_head *peers)
{
struct gossip_store *gs = tal(rstate, struct gossip_store);
gs->count = gs->deleted = 0;
gs->writable = true;
gs->timestamp = gossip_store_compact_offline(rstate);
gs->fd = open(GOSSIP_STORE_FILENAME, O_RDWR|O_CREAT, 0600);
if (gs->fd < 0)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Opening gossip_store store: %s",
strerror(errno));
gs->rstate = rstate;
gs->disable_compaction = false;
gs->len = sizeof(gs->version);
gs->peers = peers;
tal_add_destructor(gs, gossip_store_destroy);
/* Try to read the version, write it if this is a new file, or truncate
* if the version doesn't match */
if (read(gs->fd, &gs->version, sizeof(gs->version))
== sizeof(gs->version)) {
/* Version match? All good */
if (gs->version == GOSSIP_STORE_VERSION)
return gs;
status_unusual("Gossip store version %u not %u: removing",
gs->version, GOSSIP_STORE_VERSION);
if (ftruncate(gs->fd, 0) != 0)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Truncating store: %s", strerror(errno));
}
/* Empty file, write version byte */
gs->version = GOSSIP_STORE_VERSION;
if (write(gs->fd, &gs->version, sizeof(gs->version))
!= sizeof(gs->version))
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Writing version to store: %s", strerror(errno));
return gs;
}
/* Returns bytes transferred, or 0 on error */
static size_t transfer_store_msg(int from_fd, size_t from_off,
int to_fd, size_t to_off,
int *type)
{
struct gossip_hdr hdr;
u32 msglen;
u8 *msg;
const u8 *p;
size_t tmplen;
*type = -1;
if (pread(from_fd, &hdr, sizeof(hdr), from_off) != sizeof(hdr)) {
status_broken("Failed reading header from to gossip store @%zu"
": %s",
from_off, strerror(errno));
return 0;
}
msglen = be32_to_cpu(hdr.len);
if (msglen & GOSSIP_STORE_LEN_DELETED_BIT) {
status_broken("Can't transfer deleted msg from gossip store @%zu",
from_off);
return 0;
}
/* Ignore any non-length bits (e.g. push) */
msglen &= GOSSIP_STORE_LEN_MASK;
/* FIXME: Reuse buffer? */
msg = tal_arr(tmpctx, u8, sizeof(hdr) + msglen);
memcpy(msg, &hdr, sizeof(hdr));
if (pread(from_fd, msg + sizeof(hdr), msglen, from_off + sizeof(hdr))
!= msglen) {
status_broken("Failed reading %u from to gossip store @%zu"
": %s",
msglen, from_off, strerror(errno));
return 0;
}
if (pwrite(to_fd, msg, msglen + sizeof(hdr), to_off)
!= msglen + sizeof(hdr)) {
status_broken("Failed writing to gossip store: %s",
strerror(errno));
return 0;
}
/* Can't use peektype here, since we have header on front */
p = msg + sizeof(hdr);
tmplen = msglen;
*type = fromwire_u16(&p, &tmplen);
if (!p)
*type = -1;
tal_free(msg);
return sizeof(hdr) + msglen;
}
/* We keep a htable map of old gossip_store offsets to new ones. */
struct offset_map {
size_t from, to;
};
static size_t offset_map_key(const struct offset_map *omap)
{
return omap->from;
}
static size_t hash_offset(size_t from)
{
/* Crappy fast hash is "good enough" */
return (from >> 5) ^ from;
}
static bool offset_map_eq(const struct offset_map *omap, const size_t from)
{
return omap->from == from;
}
HTABLE_DEFINE_TYPE(struct offset_map,
offset_map_key, hash_offset, offset_map_eq, offmap);
static void move_broadcast(struct offmap *offmap,
struct broadcastable *bcast,
const char *what)
{
struct offset_map *omap;
if (!bcast->index)
return;
omap = offmap_get(offmap, bcast->index);
if (!omap)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Could not relocate %s at offset %u",
what, bcast->index);
bcast->index = omap->to;
offmap_del(offmap, omap);
}
static void destroy_offmap(struct offmap *offmap)
{
offmap_clear(offmap);
}
/**
* Rewrite the on-disk gossip store, compacting it along the way
*
* Creates a new file, writes all the updates from the `broadcast_state`, and
* then atomically swaps the files.
*/
bool gossip_store_compact(struct gossip_store *gs)
{
size_t count = 0, deleted = 0;
int fd;
u64 off, len = sizeof(gs->version), idx;
struct offmap *offmap;
struct gossip_hdr hdr;
struct offmap_iter oit;
struct node_map_iter nit;
struct offset_map *omap;
if (gs->disable_compaction)
return false;
status_debug(
"Compacting gossip_store with %zu entries, %zu of which are stale",
gs->count, gs->deleted);
fd = open(GOSSIP_STORE_TEMP_FILENAME, O_RDWR|O_TRUNC|O_CREAT, 0600);
if (fd < 0) {
status_broken(
"Could not open file for gossip_store compaction");
goto disable;
}
if (write(fd, &gs->version, sizeof(gs->version))
!= sizeof(gs->version)) {
status_broken("Writing version to store: %s", strerror(errno));
goto unlink_disable;
}
/* Walk old file, copy everything and remember new offsets. */
offmap = tal(tmpctx, struct offmap);
offmap_init_sized(offmap, gs->count);
tal_add_destructor(offmap, destroy_offmap);
/* Start by writing all channel announcements and updates. */
off = 1;
while (pread(gs->fd, &hdr, sizeof(hdr), off) == sizeof(hdr)) {
u32 msglen, wlen;
int msgtype;
msglen = (be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_MASK);
if (be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_DELETED_BIT) {
off += sizeof(hdr) + msglen;
deleted++;
continue;
}
count++;
wlen = transfer_store_msg(gs->fd, off, fd, len, &msgtype);
if (wlen == 0)
goto unlink_disable;
/* We track location of all these message types. */
if (msgtype == WIRE_GOSSIP_STORE_PRIVATE_CHANNEL
|| msgtype == WIRE_GOSSIP_STORE_PRIVATE_UPDATE
|| msgtype == WIRE_CHANNEL_ANNOUNCEMENT
|| msgtype == WIRE_CHANNEL_UPDATE
|| msgtype == WIRE_NODE_ANNOUNCEMENT) {
omap = tal(offmap, struct offset_map);
omap->from = off;
omap->to = len;
offmap_add(offmap, omap);
}
len += wlen;
off += wlen;
}
/* OK, now we've written file successfully, we can move broadcasts. */
/* Remap node announcements. */
for (struct node *n = node_map_first(gs->rstate->nodes, &nit);
n;
n = node_map_next(gs->rstate->nodes, &nit)) {
move_broadcast(offmap, &n->bcast, "node_announce");
}
/* Remap channel announcements and updates */
for (struct chan *c = uintmap_first(&gs->rstate->chanmap, &idx);
c;
c = uintmap_after(&gs->rstate->chanmap, &idx)) {
move_broadcast(offmap, &c->bcast, "channel_announce");
move_broadcast(offmap, &c->half[0].bcast, "channel_update");
move_broadcast(offmap, &c->half[1].bcast, "channel_update");
}
/* That should be everything. */
omap = offmap_first(offmap, &oit);
if (omap)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: Entry at %zu->%zu not updated?",
omap->from, omap->to);
if (count != gs->count - gs->deleted)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: Expected %zu msgs in new"
" gossip store, got %zu",
gs->count - gs->deleted, count);
if (deleted != gs->deleted)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: Expected %zu deleted msgs in old"
" gossip store, got %zu",
gs->deleted, deleted);
if (rename(GOSSIP_STORE_TEMP_FILENAME, GOSSIP_STORE_FILENAME) == -1)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Error swapping compacted gossip_store into place:"
" %s",
strerror(errno));
status_debug(
"Compaction completed: dropped %zu messages, new count %zu, len %"PRIu64,
deleted, count, len);
gs->count = count;
gs->deleted = 0;
off = gs->len - len;
gs->len = len;
close(gs->fd);
gs->fd = fd;
update_peers_broadcast_index(gs->peers, off);
return true;
unlink_disable:
unlink(GOSSIP_STORE_TEMP_FILENAME);
disable:
status_debug("Encountered an error while compacting, disabling "
"future compactions.");
gs->disable_compaction = true;
return false;
}
u64 gossip_store_add(struct gossip_store *gs, const u8 *gossip_msg,
u32 timestamp, bool push,
const u8 *addendum)
{
u64 off = gs->len;
/* Should never get here during loading! */
assert(gs->writable);
if (!append_msg(gs->fd, gossip_msg, timestamp, push, &gs->len)) {
status_broken("Failed writing to gossip store: %s",
strerror(errno));
return 0;
}
if (addendum && !append_msg(gs->fd, addendum, 0, false, &gs->len)) {
status_broken("Failed writing addendum to gossip store: %s",
strerror(errno));
return 0;
}
gs->count++;
if (addendum)
gs->count++;
return off;
}
u64 gossip_store_add_private_update(struct gossip_store *gs, const u8 *update)
{
/* A local update for an unannounced channel: not broadcastable, but
* otherwise the same as a normal channel_update */
const u8 *pupdate = towire_gossip_store_private_update(tmpctx, update);
return gossip_store_add(gs, pupdate, 0, false, NULL);
}
/* Returns index of following entry. */
static u32 delete_by_index(struct gossip_store *gs, u32 index, int type)
{
beint32_t belen;
/* Should never get here during loading! */
assert(gs->writable);
#if DEVELOPER
const u8 *msg = gossip_store_get(tmpctx, gs, index);
assert(fromwire_peektype(msg) == type);
#endif
if (pread(gs->fd, &belen, sizeof(belen), index) != sizeof(belen))
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Failed reading len to delete @%u: %s",
index, strerror(errno));
assert((be32_to_cpu(belen) & GOSSIP_STORE_LEN_DELETED_BIT) == 0);
belen |= cpu_to_be32(GOSSIP_STORE_LEN_DELETED_BIT);
if (pwrite(gs->fd, &belen, sizeof(belen), index) != sizeof(belen))
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Failed writing len to delete @%u: %s",
index, strerror(errno));
gs->deleted++;
return index + sizeof(struct gossip_hdr)
+ (be32_to_cpu(belen) & GOSSIP_STORE_LEN_MASK);
}
void gossip_store_delete(struct gossip_store *gs,
struct broadcastable *bcast,
int type)
{
u32 next_index;
if (!bcast->index)
return;
next_index = delete_by_index(gs, bcast->index, type);
/* Reset index. */
bcast->index = 0;
/* For a channel_announcement, we need to delete amount too */
if (type == WIRE_CHANNEL_ANNOUNCEMENT)
delete_by_index(gs, next_index,
WIRE_GOSSIP_STORE_CHANNEL_AMOUNT);
}
void gossip_store_mark_channel_deleted(struct gossip_store *gs,
const struct short_channel_id *scid)
{
gossip_store_add(gs, towire_gossip_store_delete_chan(tmpctx, scid),
0, false, NULL);
}
const u8 *gossip_store_get(const tal_t *ctx,
struct gossip_store *gs,
u64 offset)
{
struct gossip_hdr hdr;
u32 msglen, checksum;
u8 *msg;
if (offset == 0)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: can't access offset %"PRIu64,
offset);
if (pread(gs->fd, &hdr, sizeof(hdr), offset) != sizeof(hdr)) {
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: can't read hdr offset %"PRIu64
"/%"PRIu64": %s",
offset, gs->len, strerror(errno));
}
if (be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_DELETED_BIT)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: get delete entry offset %"PRIu64
"/%"PRIu64"",
offset, gs->len);
msglen = (be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_MASK);
checksum = be32_to_cpu(hdr.crc);
msg = tal_arr(ctx, u8, msglen);
if (pread(gs->fd, msg, msglen, offset + sizeof(hdr)) != msglen)
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: can't read len %u offset %"PRIu64
"/%"PRIu64, msglen, offset, gs->len);
if (checksum != crc32c(be32_to_cpu(hdr.timestamp), msg, msglen))
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"gossip_store: bad checksum offset %"PRIu64": %s",
offset, tal_hex(tmpctx, msg));
return msg;
}
const u8 *gossip_store_get_private_update(const tal_t *ctx,
struct gossip_store *gs,
u64 offset)
{
const u8 *pmsg = gossip_store_get(tmpctx, gs, offset);
u8 *msg;
if (!fromwire_gossip_store_private_update(ctx, pmsg, &msg))
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Failed to decode private update @%"PRIu64": %s",
offset, tal_hex(tmpctx, pmsg));
return msg;
}
int gossip_store_readonly_fd(struct gossip_store *gs)
{
int fd = open(GOSSIP_STORE_FILENAME, O_RDONLY);
/* Skip over version header */
if (fd != -1 && lseek(fd, 1, SEEK_SET) != 1) {
close_noerr(fd);
fd = -1;
}
return fd;
}
u32 gossip_store_load(struct routing_state *rstate, struct gossip_store *gs)
{
struct gossip_hdr hdr;
u32 msglen, checksum;
u8 *msg;
struct amount_sat satoshis;
const char *bad;
size_t stats[] = {0, 0, 0, 0};
struct timeabs start = time_now();
u8 *chan_ann = NULL;
u64 chan_ann_off = 0; /* Spurious gcc-9 (Ubuntu 9-20190402-1ubuntu1) 9.0.1 20190402 (experimental) warning */
gs->writable = false;
while (pread(gs->fd, &hdr, sizeof(hdr), gs->len) == sizeof(hdr)) {
msglen = be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_MASK;
checksum = be32_to_cpu(hdr.crc);
msg = tal_arr(tmpctx, u8, msglen);
if (pread(gs->fd, msg, msglen, gs->len+sizeof(hdr)) != msglen) {
bad = "gossip_store: truncated file?";
goto corrupt;
}
if (checksum != crc32c(be32_to_cpu(hdr.timestamp), msg, msglen)) {
bad = "Checksum verification failed";
goto badmsg;
}
/* Skip deleted entries */
if (be32_to_cpu(hdr.len) & GOSSIP_STORE_LEN_DELETED_BIT) {
/* Count includes deleted! */
gs->count++;
gs->deleted++;
goto next;
}
switch (fromwire_peektype(msg)) {
case WIRE_GOSSIP_STORE_PRIVATE_CHANNEL:
if (!routing_add_private_channel(rstate, NULL, msg,
gs->len)) {
bad = "Bad add_private_channel";
goto badmsg;
}
stats[0]++;
break;
case WIRE_GOSSIP_STORE_CHANNEL_AMOUNT:
if (!fromwire_gossip_store_channel_amount(msg,
&satoshis)) {
bad = "Bad gossip_store_channel_amount";
goto badmsg;
}
/* Previous channel_announcement may have been deleted */
if (!chan_ann)
break;
if (!routing_add_channel_announcement(rstate,
take(chan_ann),
satoshis,
chan_ann_off,
NULL)) {
bad = "Bad channel_announcement";
goto badmsg;
}
chan_ann = NULL;
stats[0]++;
break;
case WIRE_CHANNEL_ANNOUNCEMENT:
if (chan_ann) {
bad = "channel_announcement without amount";
goto badmsg;
}
/* Save for channel_amount (next msg) */
chan_ann = tal_steal(gs, msg);
chan_ann_off = gs->len;
break;
case WIRE_GOSSIP_STORE_PRIVATE_UPDATE:
if (!fromwire_gossip_store_private_update(tmpctx, msg, &msg)) {
bad = "invalid gossip_store_private_update";
goto badmsg;
}
/* fall thru */
case WIRE_CHANNEL_UPDATE:
if (!routing_add_channel_update(rstate,
take(msg), gs->len,
NULL)) {
bad = "Bad channel_update";
goto badmsg;
}
stats[1]++;
break;
case WIRE_NODE_ANNOUNCEMENT:
if (!routing_add_node_announcement(rstate,
take(msg), gs->len,
NULL, NULL)) {
bad = "Bad node_announcement";
goto badmsg;
}
stats[2]++;
break;
default:
bad = "Unknown message";
goto badmsg;
}
gs->count++;
next:
gs->len += sizeof(hdr) + msglen;
clean_tmpctx();
}
if (chan_ann) {
bad = "dangling channel_announcement";
goto corrupt;
}
bad = unfinalized_entries(tmpctx, rstate);
if (bad)
goto corrupt;
goto out;
badmsg:
bad = tal_fmt(tmpctx, "%s (%s)", bad, tal_hex(tmpctx, msg));
corrupt:
status_broken("gossip_store: %s. Moving to %s.corrupt and truncating",
bad, GOSSIP_STORE_FILENAME);
/* FIXME: Debug partial truncate case. */
rename(GOSSIP_STORE_FILENAME, GOSSIP_STORE_FILENAME ".corrupt");
close(gs->fd);
gs->fd = open(GOSSIP_STORE_FILENAME, O_RDWR|O_TRUNC|O_CREAT, 0600);
if (gs->fd < 0 || !write_all(gs->fd, &gs->version, sizeof(gs->version)))
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Truncating new store file: %s", strerror(errno));
remove_all_gossip(rstate);
gs->count = gs->deleted = 0;
gs->len = 1;
gs->timestamp = 0;
out:
gs->writable = true;
status_debug("total store load time: %"PRIu64" msec",
time_to_msec(time_between(time_now(), start)));
status_debug("gossip_store: Read %zu/%zu/%zu/%zu cannounce/cupdate/nannounce/cdelete from store (%zu deleted) in %"PRIu64" bytes",
stats[0], stats[1], stats[2], stats[3], gs->deleted,
gs->len);
return gs->timestamp;
}