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FlexRAN delegation: mapper function to return path name

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This commit is contained in:
Robert Schmidt
2020-10-06 17:44:08 +02:00
parent f63cf65919
commit 61344db9dd
2 changed files with 19 additions and 12 deletions
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openair2/ENB_APP/flexran_agent_common.c
+13 -11
View File
@@ -478,20 +478,22 @@ int flexran_agent_destroy_control_delegation(Protocol__FlexranMessage *msg) {
return 0; return 0;
} }
void *flexran_agent_load_delegated_code(mid_t mod_id, const char *name) { int flexran_agent_map_name_to_delegated_object(mid_t mod_id, const char *name,
char target[512]; char *path, int maxlen) {
int len = snprintf(target, sizeof(target), "%s/libflex.%s.so", int len = snprintf(path, maxlen, "%s/libflex.%s.so",
RC.flexran[mod_id]->cache_name, name); RC.flexran[mod_id]->cache_name, name);
if (len >= sizeof(target)) { if (len >= maxlen) {
LOG_E(FLEXRAN_AGENT, "target has been truncated, cannot read object\n"); LOG_E(FLEXRAN_AGENT, "path has been truncated, cannot read object\n");
return 0; return -1;
} }
LOG_I(FLEXRAN_AGENT, "Opening pushed code: %s\n", target); struct stat buf;
void *lib = dlopen(target, RTLD_NOW); int status = stat(path, &buf);
if (lib == NULL) if (status < 0) {
LOG_E(FLEXRAN_AGENT, "Could not load library: %s\n", dlerror()); LOG_E(FLEXRAN_AGENT, "Could not stat object %s: %s\n", path, strerror(errno));
return lib; return -1;
}
return 0;
} }
int flexran_agent_reconfiguration(mid_t mod_id, const void *params, Protocol__FlexranMessage **msg) { int flexran_agent_reconfiguration(mid_t mod_id, const void *params, Protocol__FlexranMessage **msg) {
openair2/ENB_APP/flexran_agent_common.h
+6 -1
View File
@@ -131,7 +131,12 @@ int flexran_agent_destroy_lc_config_request(Protocol__FlexranMessage *msg);
/* Control delegation message constructor and destructor */ /* Control delegation message constructor and destructor */
int flexran_agent_control_delegation(mid_t mod_id, const void *params, Protocol__FlexranMessage **msg); int flexran_agent_control_delegation(mid_t mod_id, const void *params, Protocol__FlexranMessage **msg);
int flexran_agent_destroy_control_delegation(Protocol__FlexranMessage *msg); int flexran_agent_destroy_control_delegation(Protocol__FlexranMessage *msg);
void *flexran_agent_load_delegated_code(mid_t mod_id, const char *name); /* Map a name from a control_delegation message to a file name. The function
* stat()s the file to check existence and returns the complete path name in
* path. The length in path needs to be maxlen, the maximum length the path may
* have. */
int flexran_agent_map_name_to_delegated_object(mid_t mod_id, const char *name,
char *path, int maxlen);
/* Policy reconfiguration message constructor and destructor */ /* Policy reconfiguration message constructor and destructor */
int flexran_agent_reconfiguration(mid_t mod_id, const void *params, Protocol__FlexranMessage **msg); int flexran_agent_reconfiguration(mid_t mod_id, const void *params, Protocol__FlexranMessage **msg);