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modules: refactor param_info_parsing

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To add more checks later.

See #2070
This commit is contained in:
Wim Taymans 2022-01-28 10:35:14 +01:00
parent ef8fa3dc6f
commit 98aa2a04c7
2 changed files with 38 additions and 42 deletions
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48
src/modules/module-client-node/protocol-native.c
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@ -112,6 +112,23 @@ do { \
} \
} while(0)
#define parse_param_info(prs,n_params,params) \
do { \
uint32_t i; \
if (spa_pod_parser_get(prs, \
SPA_POD_Int(&(n_params)), NULL) < 0) \
return -EINVAL; \
if (n_params > 0) { \
params = alloca(n_params * sizeof(struct spa_param_info)); \
for (i = 0; i < n_params; i++) { \
if (spa_pod_parser_get(prs, \
SPA_POD_Id(&(params[i]).id), \
SPA_POD_Int(&(params[i]).flags), NULL) < 0) \
return -EINVAL; \
} \
} \
} while(0)
static int client_node_marshal_add_listener(void *object,
struct spa_hook *listener,
const struct pw_client_node_events *events,
@ -942,7 +959,6 @@ static int client_node_demarshal_update(void *object, const struct pw_protocol_n
struct spa_node_info info = SPA_NODE_INFO_INIT(), *infop = NULL;
struct spa_pod *ipod;
struct spa_dict props = SPA_DICT_INIT(NULL, 0);
uint32_t i;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (spa_pod_parser_push_struct(&prs, &f[0]) < 0 ||
@ -978,19 +994,7 @@ static int client_node_demarshal_update(void *object, const struct pw_protocol_n
if (props.n_items > 0)
info.props = &props;
if (spa_pod_parser_get(&p2,
SPA_POD_Int(&info.n_params), NULL) < 0)
return -EINVAL;
if (info.n_params > 0) {
info.params = alloca(info.n_params * sizeof(struct spa_param_info));
for (i = 0; i < info.n_params; i++) {
if (spa_pod_parser_get(&p2,
SPA_POD_Id(&info.params[i].id),
SPA_POD_Int(&info.params[i].flags), NULL) < 0)
return -EINVAL;
}
}
parse_param_info(&p2, info.n_params, info.params);
}
pw_resource_notify(resource, struct pw_client_node_methods, update, 0, change_mask,
@ -1004,7 +1008,7 @@ static int client_node_demarshal_port_update(void *object, const struct pw_proto
struct pw_resource *resource = object;
struct spa_pod_parser prs;
struct spa_pod_frame f;
uint32_t i, direction, port_id, change_mask, n_params;
uint32_t direction, port_id, change_mask, n_params;
const struct spa_pod **params = NULL;
struct spa_port_info info = SPA_PORT_INFO_INIT(), *infop = NULL;
struct spa_pod *ipod;
@ -1047,19 +1051,7 @@ static int client_node_demarshal_port_update(void *object, const struct pw_proto
if (props.n_items > 0)
info.props = &props;
if (spa_pod_parser_get(&p2,
SPA_POD_Int(&info.n_params), NULL) < 0)
return -EINVAL;
if (info.n_params > 0) {
info.params = alloca(info.n_params * sizeof(struct spa_param_info));
for (i = 0; i < info.n_params; i++) {
if (spa_pod_parser_get(&p2,
SPA_POD_Id(&info.params[i].id),
SPA_POD_Int(&info.params[i].flags), NULL) < 0)
return -EINVAL;
}
}
parse_param_info(&p2, info.n_params, info.params);
}
pw_resource_notify(resource, struct pw_client_node_methods, port_update, 0, direction,