shaba/lvm2
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export size

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This commit is contained in:
Zdenek Kabelac 2024-10-19 21:51:34 +02:00
parent 64a462ea4d
commit d7934cfd12
6 changed files with 10 additions and 13 deletions
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11
lib/format_text/export.c
View File

@ -1059,22 +1059,19 @@ size_t text_vg_export_raw(struct volume_group *vg, const char *desc, char **buf,
return r; return r;
} }
static size_t _export_vg_to_buffer(struct volume_group *vg, char **buf)
{
return text_vg_export_raw(vg, "", buf, NULL);
}
struct dm_config_tree *export_vg_to_config_tree(struct volume_group *vg) struct dm_config_tree *export_vg_to_config_tree(struct volume_group *vg)
{ {
char *buf = NULL; char *buf = NULL;
uint32_t buf_size = 0;
struct dm_config_tree *vg_cft; struct dm_config_tree *vg_cft;
if (!_export_vg_to_buffer(vg, &buf)) { /* export vg to bufffer */
if (!text_vg_export_raw(vg, "", &buf, &buf_size)) {
log_error("Could not format metadata for VG %s.", vg->name); log_error("Could not format metadata for VG %s.", vg->name);
return NULL; return NULL;
} }
if (!(vg_cft = config_tree_from_string_without_dup_node_check(buf))) { if (!(vg_cft = config_tree_from_string_without_dup_node_check(buf, buf_size))) {
log_error("Error parsing metadata for VG %s.", vg->name); log_error("Error parsing metadata for VG %s.", vg->name);
free(buf); free(buf);
return NULL; return NULL;

2
lib/format_text/format-text.c
View File

@ -647,7 +647,7 @@ static int _vg_write_raw(struct format_instance *fid, struct volume_group *vg,
* *
* 'Lazy' creation of such VG might improve performance, but we * 'Lazy' creation of such VG might improve performance, but we
* lose important validation that written metadata can be parsed. */ * lose important validation that written metadata can be parsed. */
if (!(cft = config_tree_from_string_without_dup_node_check(write_buf))) { if (!(cft = config_tree_from_string_without_dup_node_check(write_buf, new_size - 1))) {
log_error("Error parsing metadata for VG %s.", vg->name); log_error("Error parsing metadata for VG %s.", vg->name);
goto out; goto out;
} }

4
libdaemon/client/config-util.c
View File

@ -159,14 +159,14 @@ void chain_node(struct dm_config_node *cn,
} }
struct dm_config_tree *config_tree_from_string_without_dup_node_check(const char *config_settings) struct dm_config_tree *config_tree_from_string_without_dup_node_check(const char *config_settings, size_t len)
{ {
struct dm_config_tree *cft; struct dm_config_tree *cft;
if (!(cft = dm_config_create())) if (!(cft = dm_config_create()))
return_NULL; return_NULL;
if (!dm_config_parse_without_dup_node_check(cft, config_settings, config_settings + strlen(config_settings))) { if (!dm_config_parse_without_dup_node_check(cft, config_settings, config_settings + len)) {
dm_config_destroy(cft); dm_config_destroy(cft);
return_NULL; return_NULL;
} }

2
libdaemon/client/config-util.h
View File

@ -66,6 +66,6 @@ struct dm_config_node *config_make_nodes(struct dm_config_tree *cft,
struct dm_config_node *pre_sib, struct dm_config_node *pre_sib,
...); ...);
struct dm_config_tree *config_tree_from_string_without_dup_node_check(const char *config_settings); struct dm_config_tree *config_tree_from_string_without_dup_node_check(const char *config_settings, size_t len);
#endif /* _LVM_DAEMON_CONFIG_UTIL_H */ #endif /* _LVM_DAEMON_CONFIG_UTIL_H */

2
libdaemon/client/daemon-client.c
View File

@ -118,7 +118,7 @@ daemon_reply daemon_send(daemon_handle h, daemon_request rq)
reply.error = errno; reply.error = errno;
if (buffer_read(h.socket_fd, &reply.buffer)) { if (buffer_read(h.socket_fd, &reply.buffer)) {
reply.cft = config_tree_from_string_without_dup_node_check(reply.buffer.mem); reply.cft = config_tree_from_string_without_dup_node_check(reply.buffer.mem, reply.buffer.used);
if (!reply.cft) if (!reply.cft)
reply.error = EPROTO; reply.error = EPROTO;
} else } else

2
libdaemon/server/daemon-server.c
View File

@ -450,7 +450,7 @@ static void *_client_thread(void *state)
if (!buffer_read(ts->client.socket_fd, &req.buffer)) if (!buffer_read(ts->client.socket_fd, &req.buffer))
goto fail; goto fail;
req.cft = config_tree_from_string_without_dup_node_check(req.buffer.mem); req.cft = config_tree_from_string_without_dup_node_check(req.buffer.mem, req.buffer.used);
if (!req.cft) if (!req.cft)
fprintf(stderr, "error parsing request:\n %s\n", req.buffer.mem); fprintf(stderr, "error parsing request:\n %s\n", req.buffer.mem);