#include <talloc/talloc.h>
#include <system/system.h>
+#include <process/process.h>
#include <url/url.h>
#include <log/log.h>
#define DEVICE_MOUNT_BASE (LOCAL_STATE_DIR "/petitboot/mnt")
-struct mount_map {
- char *dev, *mnt;
+struct load_url_async_data {
+ load_url_callback url_cb;
+ void *ctx;
};
-static struct mount_map *mount_map;
-static int mount_map_size;
-
-static int is_prefix(const char *str, const char *prefix)
-{
- return !strncmp(str, prefix, strlen(prefix));
-}
-
-static int is_prefix_ignorecase(const char *str, const char *prefix)
-{
- return !strncasecmp(str, prefix, strlen(prefix));
-}
-
const char *mount_base(void)
{
return DEVICE_MOUNT_BASE;
}
-char *encode_label(void *alloc_ctx, const char *label)
-{
- char *str, *c;
- unsigned int i;
-
- /* the label can be expanded by up to four times */
- str = talloc_size(alloc_ctx, strlen(label) * 4 + 1);
- c = str;
-
- for (i = 0; i < strlen(label); i++) {
-
- if (label[i] == '/' || label[i] == '\\') {
- sprintf(c, "\\x%02x", label[i]);
- c += 4;
- continue;
- }
-
- *(c++) = label[i];
- }
-
- *c = '\0';
-
- return str;
-}
-
-char *parse_device_path(void *alloc_ctx,
- const char *dev_str, const char __attribute__((unused)) *cur_dev)
-{
- char *dev, *enc;
-
- if (is_prefix_ignorecase(dev_str, "uuid=")) {
- dev = talloc_asprintf(alloc_ctx, "/dev/disk/by-uuid/%s",
- dev_str + strlen("uuid="));
- return dev;
- }
-
- if (is_prefix_ignorecase(dev_str, "label=")) {
- enc = encode_label(NULL, dev_str + strlen("label="));
- dev = talloc_asprintf(alloc_ctx, "/dev/disk/by-label/%s", enc);
- talloc_free(enc);
- return dev;
- }
-
- /* normalise '/dev/foo' to 'foo' for easy comparisons, we'll expand
- * back before returning.
- */
- if (is_prefix(dev_str, "/dev/"))
- dev_str += strlen("/dev/");
-
- return join_paths(alloc_ctx, "/dev", dev_str);
-}
-
-const char *mountpoint_for_device(const char *dev)
-{
- int i;
-
- if (is_prefix(dev, "/dev/"))
- dev += strlen("/dev/");
-
- /* check existing entries in the map */
- for (i = 0; i < mount_map_size; i++)
- if (!strcmp(mount_map[i].dev, dev))
- return mount_map[i].mnt;
-
- /* no existing entry, create a new one */
- i = mount_map_size++;
- mount_map = talloc_realloc(NULL, mount_map,
- struct mount_map, mount_map_size);
-
- mount_map[i].dev = talloc_strdup(mount_map, dev);
- mount_map[i].mnt = join_paths(mount_map, DEVICE_MOUNT_BASE, dev);
- return mount_map[i].mnt;
-}
-
-char *resolve_path(void *alloc_ctx, const char *path, const char *current_dev)
-{
- static const char s_file[] = "file://";
- char *ret;
- const char *devpath, *sep;
-
- /* test for urls */
-
- if (!strncasecmp(path, s_file, sizeof(s_file) - 1))
- path += sizeof(s_file) - 1;
- else if (strstr(path, "://"))
- return talloc_strdup(alloc_ctx, path);
-
- sep = strchr(path, ':');
- if (!sep) {
- devpath = mountpoint_for_device(current_dev);
- ret = join_paths(alloc_ctx, devpath, path);
- } else {
- /* parse just the device name into dev */
- char *tmp, *dev;
- tmp = talloc_strndup(NULL, path, sep - path);
- dev = parse_device_path(NULL, tmp, current_dev);
-
- devpath = mountpoint_for_device(dev);
- ret = join_paths(alloc_ctx, devpath, sep + 1);
-
- talloc_free(dev);
- talloc_free(tmp);
- }
-
- return ret;
-}
-
char *join_paths(void *alloc_ctx, const char *a, const char *b)
{
char *full_path;
return ret;
}
+static void load_url_exit_cb(struct process *process)
+{
+ struct load_url_async_data *url_data = process->data;
+
+ pb_log("The download client '%s' [pid %d] exited, rc %d\n",
+ process->path, process->pid, process->exit_status);
+
+ url_data->url_cb(url_data->ctx, process->exit_status);
+
+ process_release(process);
+}
+
/**
* pb_load_nfs - Mounts the NFS export and returns the local file path.
*
* Returns the local file path in a talloc'ed character string on success,
* or NULL on error.
*/
-static char *load_nfs(void *ctx, struct pb_url *url)
+static char *load_nfs(void *ctx, struct pb_url *url,
+ struct load_url_async_data *url_data)
{
+ char *local, *opts;
int result;
- const char *argv[8];
- const char **p;
- char *local;
- char *opts;
+ struct process *process;
+ const char *argv[] = {
+ pb_system_apps.mount,
+ "-t", "nfs",
+ NULL,
+ url->host,
+ url->dir,
+ NULL,
+ NULL,
+ };
local = local_name(ctx);
-
if (!local)
return NULL;
+ argv[6] = local;
result = pb_mkdir_recursive(local);
-
if (result)
goto fail;
opts = talloc_strdup(NULL, "ro,nolock,nodiratime");
+ argv[3] = opts;
if (url->port)
opts = talloc_asprintf_append(opts, ",port=%s", url->port);
- p = argv;
- *p++ = pb_system_apps.mount; /* 1 */
- *p++ = "-t"; /* 2 */
- *p++ = "nfs"; /* 3 */
- *p++ = opts; /* 4 */
- *p++ = url->host; /* 5 */
- *p++ = url->dir; /* 6 */
- *p++ = local; /* 7 */
- *p++ = NULL; /* 8 */
+ if (url_data) {
+ process = process_create(ctx);
- result = pb_run_cmd(argv, 1, 0);
+ process->path = pb_system_apps.mount;
+ process->argv = argv;
+ process->exit_cb = load_url_exit_cb;
+ process->data = url_data;
+
+ result = process_run_async(process);
+ if (result)
+ process_release(process);
+ } else {
+ result = process_run_simple_argv(ctx, argv);
+ }
talloc_free(opts);
* Returns the local file path in a talloc'ed character string on success,
* or NULL on error.
*/
-static char *load_sftp(void *ctx, struct pb_url *url)
+static char *load_sftp(void *ctx, struct pb_url *url,
+ struct load_url_async_data *url_data)
{
+ char *host_path, *local;
int result;
- const char *argv[4];
- const char **p;
- char *local;
+ struct process *process;
+ const char *argv[] = {
+ pb_system_apps.sftp,
+ NULL,
+ NULL,
+ NULL,
+ };
local = local_name(ctx);
-
if (!local)
return NULL;
+ argv[2] = local;
- p = argv;
- *p++ = pb_system_apps.sftp; /* 1 */
- *p++ = talloc_asprintf(local, "%s:%s", url->host, url->path); /* 2 */
- *p++ = local; /* 3 */
- *p++ = NULL; /* 4 */
+ host_path = talloc_asprintf(local, "%s:%s", url->host, url->path);
+ argv[1] = host_path;
- result = pb_run_cmd(argv, 1, 0);
+ if (url_data) {
+ process = process_create(ctx);
+
+ process->path = pb_system_apps.sftp;
+ process->argv = argv;
+ process->exit_cb = load_url_exit_cb;
+ process->data = url_data;
+
+ result = process_run_async(process);
+ if (result)
+ process_release(process);
+ } else {
+ result = process_run_simple_argv(ctx, argv);
+ }
if (result)
goto fail;
* or NULL on error.
*/
-static char *load_tftp(void *ctx, struct pb_url *url)
+static char *load_tftp(void *ctx, struct pb_url *url,
+ struct load_url_async_data *url_data)
{
int result;
const char *argv[10];
const char **p;
char *local;
+ struct process *process;
local = local_name(ctx);
*p++ = url->port; /* 8 */
*p++ = NULL; /* 9 */
- result = pb_run_cmd(argv, 1, 0);
+ if (url_data) {
+ process = process_create(ctx);
+
+ process->path = pb_system_apps.tftp;
+ process->argv = argv;
+ process->exit_cb = load_url_exit_cb;
+ process->data = url_data;
+
+ result = process_run_async(process);
+ } else {
+ result = process_run_simple_argv(ctx, argv);
+ }
if (!result)
return local;
/* next try tftp-hpa args */
-
p = argv;
*p++ = pb_system_apps.tftp; /* 1 */
*p++ = "-m"; /* 2 */
*p++ = local; /* 9 */
*p++ = NULL; /* 10 */
- result = pb_run_cmd(argv, 1, 0);
+ if (url_data) {
+ process->argv = argv;
+ result = process_run_async(process);
+ if (result)
+ process_release(process);
+ } else {
+ result = process_run_simple_argv(ctx, argv);
+ }
if (!result)
return local;
* or NULL on error.
*/
-static char *load_wget(void *ctx, struct pb_url *url, enum wget_flags flags)
+static char *load_wget(void *ctx, struct pb_url *url, enum wget_flags flags,
+ struct load_url_async_data *url_data)
{
int result;
const char *argv[7];
const char **p;
char *local;
+ struct process *process;
local = local_name(ctx);
*p++ = "--no-check-certificate"; /* 6 */
*p++ = NULL; /* 7 */
- result = pb_run_cmd(argv, 1, 0);
+ if (url_data) {
+ process = process_create(ctx);
+
+ process->path = pb_system_apps.wget;
+ process->argv = argv;
+ process->exit_cb = load_url_exit_cb;
+ process->data = url_data;
+
+ result = process_run_async(process);
+ if (result)
+ process_release(process);
+ } else {
+ result = process_run_simple_argv(ctx, argv);
+ }
if (result)
goto fail;
}
/**
- * pb_load_file - Loads a (possibly) remote file and returns the local file
+ * load_url - Loads a (possibly) remote URL and returns the local file
* path.
* @ctx: The talloc context to associate with the returned string.
- * @remote: The remote file URL.
+ * @url: The remote file URL.
* @tempfile: An optional variable pointer to be set when a temporary local
* file is created.
+ * @url_cb: An optional callback pointer if the caller wants to load url
+ * asynchronously.
*
* Returns the local file path in a talloc'ed character string on success,
* or NULL on error.
*/
-char *load_file(void *ctx, const char *remote, unsigned int *tempfile)
+char *load_url_async(void *ctx, struct pb_url *url, unsigned int *tempfile,
+ load_url_callback url_cb)
{
- struct pb_url *url = pb_url_parse(ctx, remote);
char *local;
int tmp = 0;
+ struct load_url_async_data *url_data;
if (!url)
return NULL;
+ url_data = NULL;
+
+ if (url_cb) {
+ url_data = talloc_zero(ctx, struct load_url_async_data);
+ url_data->url_cb = url_cb;
+ url_data->ctx = ctx;
+ }
+
switch (url->scheme) {
case pb_url_ftp:
case pb_url_http:
- local = load_wget(ctx, url, 0);
+ local = load_wget(ctx, url, 0, url_data);
tmp = !!local;
break;
case pb_url_https:
- local = load_wget(ctx, url, wget_no_check_certificate);
+ local = load_wget(ctx, url, wget_no_check_certificate,
+ url_data);
tmp = !!local;
break;
case pb_url_nfs:
- local = load_nfs(ctx, url);
+ local = load_nfs(ctx, url, url_data);
tmp = !!local;
break;
case pb_url_sftp:
- local = load_sftp(ctx, url);
+ local = load_sftp(ctx, url, url_data);
tmp = !!local;
break;
case pb_url_tftp:
- local = load_tftp(ctx, url);
+ local = load_tftp(ctx, url, url_data);
tmp = !!local;
break;
default:
if (tempfile)
*tempfile = tmp;
- talloc_free(url);
return local;
}
+
+char *load_url(void *ctx, struct pb_url *url, unsigned int *tempfile)
+{
+ return load_url_async(ctx, url, tempfile, NULL);
+}
projects / petitboot / blobdiff