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uci: tighten uci set operation error handling

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- Return UBUS_STATUS_NOT_FOUND if no section could be resolved for set
 - Return UBUS_STATUS_INVALID_ARGUMENT if unserializable values are found

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Jo-Philipp Wich 2018-08-08 22:43:57 +02:00
parent 948bb51875
commit c2c612b67c
1 changed files with 45 additions and 14 deletions
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59
uci.c
View file

@ -811,43 +811,59 @@ out:
* 3) in all other cases only emit a set operation if there is no existing
* option of if the existing options value differs from the blob value
*/
static void
static int
rpc_uci_merge_set(struct blob_attr *opt, struct uci_ptr *ptr)
{
struct blob_attr *cur;
int rem;
int rem, rv;
ptr->o = NULL;
ptr->option = blobmsg_name(opt);
ptr->value = NULL;
if (!rpc_uci_verify_name(ptr->option))
return;
return UBUS_STATUS_INVALID_ARGUMENT;
if (rpc_uci_lookup(ptr) || !ptr->s)
return;
return UBUS_STATUS_NOT_FOUND;
if (blobmsg_type(opt) == BLOBMSG_TYPE_ARRAY)
{
if (ptr->o)
uci_delete(cursor, ptr);
rv = UBUS_STATUS_INVALID_ARGUMENT;
blobmsg_for_each_attr(cur, opt, rem)
if (rpc_uci_format_blob(cur, &ptr->value))
uci_add_list(cursor, ptr);
{
if (!rpc_uci_format_blob(cur, &ptr->value))
continue;
uci_add_list(cursor, ptr);
rv = 0;
}
return rv;
}
else if (ptr->o && ptr->o->type == UCI_TYPE_LIST)
{
uci_delete(cursor, ptr);
if (rpc_uci_format_blob(opt, &ptr->value))
uci_set(cursor, ptr);
if (!rpc_uci_format_blob(opt, &ptr->value))
return UBUS_STATUS_INVALID_ARGUMENT;
uci_set(cursor, ptr);
}
else if (rpc_uci_format_blob(opt, &ptr->value))
else
{
if (!rpc_uci_format_blob(opt, &ptr->value))
return UBUS_STATUS_INVALID_ARGUMENT;
if (!ptr->o || !ptr->o->v.string || strcmp(ptr->o->v.string, ptr->value))
uci_set(cursor, ptr);
}
return 0;
}
static int
@ -860,7 +876,7 @@ rpc_uci_set(struct ubus_context *ctx, struct ubus_object *obj,
struct uci_package *p = NULL;
struct uci_element *e;
struct uci_ptr ptr = { 0 };
int rem;
int rem, rv, err = 0;
blobmsg_parse(rpc_uci_set_policy, __RPC_S_MAX, tb,
blob_data(msg), blob_len(msg));
@ -885,7 +901,12 @@ rpc_uci_set(struct ubus_context *ctx, struct ubus_object *obj,
{
ptr.section = blobmsg_data(tb[RPC_S_SECTION]);
blobmsg_for_each_attr(cur, tb[RPC_S_VALUES], rem)
rpc_uci_merge_set(cur, &ptr);
{
rv = rpc_uci_merge_set(cur, &ptr);
if (rv)
err = rv;
}
}
else
{
@ -899,14 +920,24 @@ rpc_uci_set(struct ubus_context *ctx, struct ubus_object *obj,
ptr.section = e->name;
blobmsg_for_each_attr(cur, tb[RPC_S_VALUES], rem)
rpc_uci_merge_set(cur, &ptr);
{
rv = rpc_uci_merge_set(cur, &ptr);
if (rv)
err = rv;
}
}
}
uci_save(cursor, p);
if (!err && !ptr.s)
err = UBUS_STATUS_NOT_FOUND;
if (!err)
uci_save(cursor, p);
uci_unload(cursor, p);
return rpc_uci_status();
return err ? err : rpc_uci_status();
}
/*