/* currently only commit the top level scope */
D_Scope *
commit_D_Scope(D_Scope *st) {
D_Scope *x = st;
if (st->up)
return st;
while (x->search) x = x->search;
commit_ll(st, x->hash);
commit_update(st, x->hash);
return x;
}
static int
execute_update_commands(WIMStruct *wim,
const struct wimlib_update_command *cmds,
size_t num_cmds,
int update_flags)
{
struct wim_inode_table *inode_table;
struct wim_sd_set *sd_set;
struct list_head unhashed_streams;
struct update_command_journal *j;
union wimlib_progress_info info;
int ret;
if (have_command_type(cmds, num_cmds, WIMLIB_UPDATE_OP_ADD)) {
/* If we have at least one "add" command, create the inode and
* security descriptor tables to index new inodes and new
* security descriptors, respectively. */
inode_table = alloca(sizeof(struct wim_inode_table));
sd_set = alloca(sizeof(struct wim_sd_set));
ret = init_inode_table(inode_table, 9001);
if (ret)
goto out;
ret = init_sd_set(sd_set, wim_get_current_security_data(wim));
if (ret)
goto out_destroy_inode_table;
INIT_LIST_HEAD(&unhashed_streams);
} else {
inode_table = NULL;
sd_set = NULL;
}
/* Start an in-memory journal to allow rollback if something goes wrong
*/
j = new_update_command_journal(num_cmds,
&wim_get_current_image_metadata(wim)->root_dentry,
wim->lookup_table);
if (!j) {
ret = WIMLIB_ERR_NOMEM;
goto out_destroy_sd_set;
}
info.update.completed_commands = 0;
info.update.total_commands = num_cmds;
ret = 0;
for (size_t i = 0; i < num_cmds; i++) {
DEBUG("Executing update command %zu of %zu (op=%"TS")",
i + 1, num_cmds, update_op_to_str(cmds[i].op));
info.update.command = &cmds[i];
if (update_flags & WIMLIB_UPDATE_FLAG_SEND_PROGRESS) {
ret = call_progress(wim->progfunc,
WIMLIB_PROGRESS_MSG_UPDATE_BEGIN_COMMAND,
&info, wim->progctx);
if (ret)
goto rollback;
}
switch (cmds[i].op) {
case WIMLIB_UPDATE_OP_ADD:
ret = execute_add_command(j, wim, &cmds[i], inode_table,
sd_set, &unhashed_streams);
break;
case WIMLIB_UPDATE_OP_DELETE:
ret = execute_delete_command(j, wim, &cmds[i]);
break;
case WIMLIB_UPDATE_OP_RENAME:
ret = execute_rename_command(j, wim, &cmds[i]);
break;
}
if (unlikely(ret))
goto rollback;
info.update.completed_commands++;
if (update_flags & WIMLIB_UPDATE_FLAG_SEND_PROGRESS) {
ret = call_progress(wim->progfunc,
WIMLIB_PROGRESS_MSG_UPDATE_END_COMMAND,
&info, wim->progctx);
if (ret)
goto rollback;
}
next_command(j);
}
commit_update(j);
if (inode_table) {
struct wim_image_metadata *imd;
imd = wim_get_current_image_metadata(wim);
list_splice_tail(&unhashed_streams, &imd->unhashed_streams);
inode_table_prepare_inode_list(inode_table, &imd->inode_list);
}
goto out_destroy_sd_set;
rollback:
if (sd_set)
rollback_new_security_descriptors(sd_set);
rollback_update(j);
out_destroy_sd_set:
if (sd_set)
destroy_sd_set(sd_set);
out_destroy_inode_table:
if (inode_table)
destroy_inode_table(inode_table);
out:
return ret;
}
static int sj_init() {
struct v7 *v7 = s_v7;
LOG(LL_INFO, ("Mongoose IoT Firmware %s", build_id));
LOG(LL_INFO,
("RAM: %d total, %d free", sj_get_heap_size(), sj_get_free_heap_size()));
int r = start_nwp();
if (r < 0) {
LOG(LL_ERROR, ("Failed to start NWP: %d", r));
return 0;
}
int boot_cfg_idx = get_active_boot_cfg_idx();
if (boot_cfg_idx < 0) return 0;
struct boot_cfg boot_cfg;
if (read_boot_cfg(boot_cfg_idx, &boot_cfg) < 0) return 0;
LOG(LL_INFO, ("Boot cfg %d: 0x%llx, 0x%u, %s @ 0x%08x, %s", boot_cfg_idx,
boot_cfg.seq, boot_cfg.flags, boot_cfg.app_image_file,
boot_cfg.app_load_addr, boot_cfg.fs_container_prefix));
uint64_t saved_seq = 0;
if (boot_cfg.flags & BOOT_F_FIRST_BOOT) {
/* Tombstone the current config. If anything goes wrong between now and
* commit, next boot will use the old one. */
saved_seq = boot_cfg.seq;
boot_cfg.seq = BOOT_CFG_TOMBSTONE_SEQ;
write_boot_cfg(&boot_cfg, boot_cfg_idx);
}
r = init_fs(boot_cfg.fs_container_prefix);
if (r < 0) {
LOG(LL_ERROR, ("FS init error: %d", r));
if (boot_cfg.flags & BOOT_F_FIRST_BOOT) {
revert_update(boot_cfg_idx, &boot_cfg);
}
return 0;
}
if (boot_cfg.flags & BOOT_F_FIRST_BOOT) {
LOG(LL_INFO, ("Applying update"));
if (apply_update(boot_cfg_idx, &boot_cfg) < 0) {
revert_update(boot_cfg_idx, &boot_cfg);
}
}
mongoose_init();
#ifndef CS_DISABLE_JS
v7 = s_v7 = init_v7(&v7);
/* Disable GC during JS API initialization. */
v7_set_gc_enabled(v7, 0);
sj_gpio_api_setup(v7);
sj_i2c_api_setup(v7);
sj_wifi_api_setup(v7);
sj_timers_api_setup(v7);
#endif
sj_v7_ext_api_setup(v7);
sj_init_sys(v7);
sj_wifi_init(v7);
#ifndef DISABLE_C_CLUBBY
sj_clubby_init();
#endif
sj_http_api_setup(v7);
#if !defined(DISABLE_C_CLUBBY) && !defined(CS_DISABLE_JS)
sj_clubby_api_setup(v7);
#endif
/* Common config infrastructure. Mongoose & v7 must be initialized. */
init_device(v7);
sj_updater_post_init(v7);
#ifndef DISABLE_C_CLUBBY
init_updater_clubby(v7);
#endif
#ifndef CS_DISABLE_JS
/* SJS initialized, enable GC back, and trigger it */
v7_set_gc_enabled(v7, 1);
v7_gc(v7, 1);
v7_val_t res;
if (v7_exec_file(v7, "sys_init.js", &res) != V7_OK) {
fprintf(stderr, "Error: ");
v7_fprint(stderr, v7, res);
}
#endif
LOG(LL_INFO, ("%s init done, RAM: %d free", "Sys", sj_get_free_heap_size()));
if (!sj_app_init(v7)) {
LOG(LL_ERROR, ("App init failed"));
abort();
}
LOG(LL_INFO, ("%s init done, RAM: %d free", "App", sj_get_free_heap_size()));
if (boot_cfg.flags & BOOT_F_FIRST_BOOT) {
boot_cfg.seq = saved_seq;
commit_update(boot_cfg_idx, &boot_cfg);
clubby_updater_finish(0);
} else {
/*
* If there is no update reply state, this will just be ignored.
* But if there is, then update was rolled back and reply will be sent.
*/
clubby_updater_finish(-1);
}
#ifndef CS_DISABLE_JS
sj_prompt_init(v7);
#endif
return 1;
}
