static gboolean
dispatch_bspatch (OstreeRepo *repo,
StaticDeltaExecutionState *state,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
guint64 offset, length;
g_autoptr(GInputStream) in_stream = NULL;
g_autoptr(GMappedFile) input_mfile = NULL;
g_autofree guchar *buf = NULL;
struct bspatch_stream stream;
struct bzpatch_opaque_s opaque;
gsize bytes_written;
if (!read_varuint64 (state, &offset, error))
goto out;
if (!read_varuint64 (state, &length, error))
goto out;
if (!state->have_obj)
{
input_mfile = g_mapped_file_new_from_fd (state->read_source_fd, FALSE, error);
if (!input_mfile)
goto out;
buf = g_malloc0 (state->content_size);
opaque.state = state;
opaque.offset = offset;
opaque.length = length;
stream.read = bspatch_read;
stream.opaque = &opaque;
if (bspatch ((const guint8*)g_mapped_file_get_contents (input_mfile),
g_mapped_file_get_length (input_mfile),
buf,
state->content_size,
&stream) < 0)
goto out;
if (!g_output_stream_write_all (state->content_out,
buf,
state->content_size,
&bytes_written,
cancellable, error))
goto out;
g_assert (bytes_written == state->content_size);
}
ret = TRUE;
out:
return ret;
}
static void
gum_darwin_mapper_init_cache_file (GumDarwinMapper * self,
GumCpuType cpu_type)
{
const gchar ** candidates, ** candidate;
gint fd, result;
switch (cpu_type)
{
case GUM_CPU_IA32:
candidates = gum_darwin_cache_file_arch_candidates_ia32;
break;
case GUM_CPU_AMD64:
candidates = gum_darwin_cache_file_arch_candidates_amd64;
break;
case GUM_CPU_ARM:
candidates = gum_darwin_cache_file_arch_candidates_arm;
break;
case GUM_CPU_ARM64:
candidates = gum_darwin_cache_file_arch_candidates_arm64;
break;
default:
g_assert_not_reached ();
}
fd = -1;
for (candidate = candidates; *candidate != NULL && fd == -1; candidate++)
{
gchar * path;
path = g_strconcat (
"/System/Library/Caches/com.apple.dyld/dyld_shared_cache_",
*candidate,
NULL);
fd = open (path, 0);
g_free (path);
}
if (fd == -1)
return;
result = fcntl (fd, F_NOCACHE, TRUE);
g_assert (result == 0);
self->cache_file = g_mapped_file_new_from_fd (fd, FALSE, NULL);
g_assert (self->cache_file != NULL);
close (fd);
}
GBytes *
ot_file_mapat_bytes (int dfd,
const char *path,
GError **error)
{
glnx_fd_close int fd = openat (dfd, path, O_RDONLY | O_CLOEXEC);
g_autoptr(GMappedFile) mfile = NULL;
if (fd < 0)
{
glnx_set_error_from_errno (error);
return FALSE;
}
mfile = g_mapped_file_new_from_fd (fd, FALSE, error);
if (!mfile)
return FALSE;
return g_mapped_file_get_bytes (mfile);
}
/**
* Return in @out_variant the result of memory-mapping the entire
* contents of file @src.
*
* Note the returned @out_variant is not floating.
*/
gboolean
ot_util_variant_map (GFile *src,
const GVariantType *type,
gboolean trusted,
GVariant **out_variant,
GError **error)
{
gboolean ret = FALSE;
const char *path = NULL;
ot_lvariant GVariant *ret_variant = NULL;
GMappedFile *mfile = NULL;
int fd;
path = ot_gfile_get_path_cached (src);
if (!ot_unix_open_noatime (path, &fd, error))
goto out;
mfile = g_mapped_file_new_from_fd (fd, FALSE, error);
if (!mfile)
goto out;
if (!ot_unix_close (fd, error))
goto out;
ret_variant = g_variant_new_from_data (type,
g_mapped_file_get_contents (mfile),
g_mapped_file_get_length (mfile),
trusted,
(GDestroyNotify) g_mapped_file_unref,
mfile);
mfile = NULL;
g_variant_ref_sink (ret_variant);
ret = TRUE;
ot_transfer_out_value(out_variant, &ret_variant);
out:
if (mfile)
g_mapped_file_unref (mfile);
return ret;
}
/**
* gs_file_map_noatime: (skip)
* @file: a #GFile
* @cancellable: a #GCancellable
* @error: a #GError
*
* Like g_mapped_file_new(), but try to avoid updating the file's
* access time. This should be used by background scanning
* components such as search indexers, antivirus programs, etc.
*
* Returns: (transfer full): A new mapped file, or %NULL on error
*/
GMappedFile *
gs_file_map_noatime (GFile *file,
GCancellable *cancellable,
GError **error)
{
const char *path;
int fd;
GMappedFile *ret;
if (g_cancellable_set_error_if_cancelled (cancellable, error))
return NULL;
path = gs_file_get_path_cached (file);
if (path == NULL)
return NULL;
if (!gs_file_openat_noatime (AT_FDCWD, path, &fd, cancellable, error))
return NULL;
ret = g_mapped_file_new_from_fd (fd, FALSE, error);
close_nointr_noerror (fd); /* Ignore errors - we always want to close */
return ret;
}
static void
do_get (OtTrivialHttpd *self,
SoupServer *server,
SoupMessage *msg,
const char *path,
SoupClientContext *context)
{
char *slash;
int ret;
struct stat stbuf;
httpd_log (self, "serving %s\n", path);
if (opt_expected_cookies)
{
GSList *cookies = soup_cookies_from_request (msg);
GSList *l;
int i;
for (i = 0 ; opt_expected_cookies[i] != NULL; i++)
{
gboolean found = FALSE;
gchar *k = opt_expected_cookies[i];
gchar *v = strchr (k, '=') + 1;
for (l = cookies; l != NULL ; l = g_slist_next (l))
{
SoupCookie *c = l->data;
if (!strncmp (k, soup_cookie_get_name (c), v - k - 1) &&
!strcmp (v, soup_cookie_get_value (c)))
{
found = TRUE;
break;
}
}
if (!found)
{
httpd_log (self, "Expected cookie not found %s\n", k);
soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
soup_cookies_free (cookies);
goto out;
}
}
soup_cookies_free (cookies);
}
if (opt_expected_headers)
{
for (int i = 0 ; opt_expected_headers[i] != NULL; i++)
{
const gchar *kv = opt_expected_headers[i];
const gchar *eq = strchr (kv, '=');
g_assert (eq);
{
g_autofree char *k = g_strndup (kv, eq - kv);
const gchar *expected_v = eq + 1;
const gchar *found_v = soup_message_headers_get_one (msg->request_headers, k);
if (!found_v)
{
httpd_log (self, "Expected header not found %s\n", k);
soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
goto out;
}
if (strcmp (found_v, expected_v) != 0)
{
httpd_log (self, "Expected header %s: %s but found %s\n", k, expected_v, found_v);
soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
goto out;
}
}
}
}
if (strstr (path, "../") != NULL)
{
soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
goto out;
}
if (opt_random_500s_percentage > 0 &&
emitted_random_500s_count < opt_random_500s_max &&
g_random_int_range (0, 100) < opt_random_500s_percentage)
{
emitted_random_500s_count++;
soup_message_set_status (msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
goto out;
}
while (path[0] == '/')
path++;
do
ret = fstatat (self->root_dfd, path, &stbuf, 0);
while (ret == -1 && errno == EINTR);
if (ret == -1)
{
if (errno == EPERM)
soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
else if (errno == ENOENT)
soup_message_set_status (msg, SOUP_STATUS_NOT_FOUND);
else
soup_message_set_status (msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
goto out;
}
if (!is_safe_to_access (&stbuf))
{
soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
goto out;
}
if (S_ISDIR (stbuf.st_mode))
{
slash = strrchr (path, '/');
if (!slash || slash[1])
{
g_autofree char *redir_uri = NULL;
redir_uri = g_strdup_printf ("%s/", soup_message_get_uri (msg)->path);
soup_message_set_redirect (msg, SOUP_STATUS_MOVED_PERMANENTLY,
redir_uri);
}
else
{
g_autofree char *index_realpath = g_strconcat (path, "/index.html", NULL);
if (fstatat (self->root_dfd, index_realpath, &stbuf, 0) != -1)
{
g_autofree char *index_path = g_strconcat (path, "/index.html", NULL);
do_get (self, server, msg, index_path, context);
}
else
{
GString *listing = get_directory_listing (self->root_dfd, path);
soup_message_set_response (msg, "text/html",
SOUP_MEMORY_TAKE,
listing->str, listing->len);
soup_message_set_status (msg, SOUP_STATUS_OK);
g_string_free (listing, FALSE);
}
}
}
else
{
if (!S_ISREG (stbuf.st_mode))
{
soup_message_set_status (msg, SOUP_STATUS_FORBIDDEN);
goto out;
}
if (msg->method == SOUP_METHOD_GET)
{
glnx_autofd int fd = -1;
g_autoptr(GMappedFile) mapping = NULL;
gsize buffer_length, file_size;
SoupRange *ranges;
int ranges_length;
gboolean have_ranges;
fd = openat (self->root_dfd, path, O_RDONLY | O_CLOEXEC);
if (fd < 0)
{
soup_message_set_status (msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
goto out;
}
mapping = g_mapped_file_new_from_fd (fd, FALSE, NULL);
if (!mapping)
{
soup_message_set_status (msg, SOUP_STATUS_INTERNAL_SERVER_ERROR);
goto out;
}
(void) close (fd); fd = -1;
file_size = g_mapped_file_get_length (mapping);
have_ranges = soup_message_headers_get_ranges(msg->request_headers, file_size, &ranges, &ranges_length);
if (opt_force_ranges && !have_ranges && g_strrstr (path, "/objects") != NULL)
{
SoupSocket *sock;
buffer_length = file_size/2;
soup_message_headers_set_content_length (msg->response_headers, file_size);
soup_message_headers_append (msg->response_headers,
"Connection", "close");
/* soup-message-io will wait for us to add
* another chunk after the first, to fill out
* the declared Content-Length. Instead, we
* forcibly close the socket at that point.
*/
sock = soup_client_context_get_socket (context);
g_signal_connect (msg, "wrote-chunk", G_CALLBACK (close_socket), sock);
}
else
buffer_length = file_size;
if (have_ranges)
{
if (ranges_length > 0 && ranges[0].start >= file_size)
{
soup_message_set_status (msg, SOUP_STATUS_REQUESTED_RANGE_NOT_SATISFIABLE);
soup_message_headers_free_ranges (msg->request_headers, ranges);
goto out;
}
soup_message_headers_free_ranges (msg->request_headers, ranges);
}
if (buffer_length > 0)
{
SoupBuffer *buffer;
buffer = soup_buffer_new_with_owner (g_mapped_file_get_contents (mapping),
buffer_length,
g_mapped_file_ref (mapping),
(GDestroyNotify)g_mapped_file_unref);
soup_message_body_append_buffer (msg->response_body, buffer);
soup_buffer_free (buffer);
}
}
else /* msg->method == SOUP_METHOD_HEAD */
{
g_autofree char *length = NULL;
/* We could just use the same code for both GET and
* HEAD (soup-message-server-io.c will fix things up).
* But we'll optimize and avoid the extra I/O.
*/
length = g_strdup_printf ("%lu", (gulong)stbuf.st_size);
soup_message_headers_append (msg->response_headers,
"Content-Length", length);
}
soup_message_set_status (msg, SOUP_STATUS_OK);
}
out:
{
guint status = 0;
g_autofree gchar *reason = NULL;
g_object_get (msg,
"status-code", &status,
"reason-phrase", &reason,
NULL);
httpd_log (self, " status: %s (%u)\n", reason, status);
}
return;
}
