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-rw-r--r--src/irmd/main.c410
1 files changed, 344 insertions, 66 deletions
diff --git a/src/irmd/main.c b/src/irmd/main.c
index 13076cd1..31dabebb 100644
--- a/src/irmd/main.c
+++ b/src/irmd/main.c
@@ -41,23 +41,42 @@
#include <stdlib.h>
#include <errno.h>
#include <string.h>
+#include <limits.h>
+
+/* FIXME: this smells like part of namespace management */
+#define ALL_DIFS "*"
struct ipcp_entry {
struct list_head next;
- pid_t pid;
instance_name_t * api;
char * dif_name;
};
+/* currently supports only registering whatevercast groups of a single AP */
+struct reg_name_entry {
+ struct list_head next;
+
+ /* generic whatevercast name */
+ char * name;
+
+ /* FIXME: resolve name instead */
+ instance_name_t * api;
+ uint32_t reg_ap_id;
+};
+
struct irm {
+ /* FIXME: list of ipcps can be merged with registered names */
struct list_head ipcps;
+ struct list_head reg_names;
+
+ struct shm_du_map * dum;
};
struct irm * instance = NULL;
-struct shm_du_map * dum;
-static pid_t find_pid_by_ipcp_name(instance_name_t * api)
+static struct ipcp_entry * find_ipcp_entry_by_name(instance_name_t * api)
{
+ struct ipcp_entry * tmp = NULL;
struct list_head * pos = NULL;
list_for_each(pos, &instance->ipcps) {
@@ -65,35 +84,147 @@ static pid_t find_pid_by_ipcp_name(instance_name_t * api)
list_entry(pos, struct ipcp_entry, next);
if (instance_name_cmp(api, tmp->api) == 0)
- return tmp->pid;
+ return tmp;
}
- return 0;
+ return tmp;
}
-static struct ipcp_entry * find_ipcp_by_name(instance_name_t * api)
+static instance_name_t * get_ipcp_by_name(char * ap_name)
{
- struct ipcp_entry * tmp = NULL;
struct list_head * pos = NULL;
list_for_each(pos, &instance->ipcps) {
- struct ipcp_entry * tmp =
+ struct ipcp_entry * e =
list_entry(pos, struct ipcp_entry, next);
- if (instance_name_cmp(api, tmp->api) == 0)
- return tmp;
+ if (strcmp(e->api->name, ap_name) == 0)
+ return e->api;
}
- return tmp;
+ return NULL;
+}
+
+static instance_name_t * get_ipcp_by_dif_name(char * dif_name)
+{
+ struct list_head * pos = NULL;
+
+ list_for_each(pos, &instance->ipcps) {
+ struct ipcp_entry * e =
+ list_entry(pos, struct ipcp_entry, next);
+
+ if (e->dif_name == NULL)
+ continue;
+
+ if (strcmp(dif_name, e->dif_name) == 0)
+ return e->api;
+ }
+
+ return NULL;
+}
+
+static struct reg_name_entry * reg_name_entry_create()
+{
+ struct reg_name_entry * e = malloc(sizeof(*e));
+ if (e == NULL)
+ return NULL;
+
+ e->reg_ap_id = rand() % INT_MAX;
+ e->name = NULL;
+
+ INIT_LIST_HEAD(&e->next);
+
+ return e;
+}
+
+static struct reg_name_entry * reg_name_entry_init(struct reg_name_entry * e,
+ char * name,
+ instance_name_t * api)
+{
+ if (e == NULL || name == NULL || api == NULL)
+ return NULL;
+
+ e->name = name;
+ e->api = api;
+
+ return e;
+}
+
+static int reg_name_entry_destroy(struct reg_name_entry * e)
+{
+ if (e == NULL)
+ return 0;
+
+ free(e->name);
+ instance_name_destroy(e->api);
+ return 0;
+}
+
+static struct reg_name_entry * find_reg_name_entry_by_name(char * name)
+{
+ struct list_head * pos = NULL;
+
+ list_for_each(pos, &instance->reg_names) {
+ struct reg_name_entry * e =
+ list_entry(pos, struct reg_name_entry, next);
+
+ if (strcmp(name, e->name) == 0)
+ return e;
+ }
+
+ return NULL;
+}
+
+static struct reg_name_entry * find_reg_name_entry_by_id(uint32_t reg_ap_id)
+{
+ struct list_head * pos = NULL;
+
+ list_for_each(pos, &instance->reg_names) {
+ struct reg_name_entry * e =
+ list_entry(pos, struct reg_name_entry, next);
+
+ if (reg_ap_id == e->reg_ap_id)
+ return e;
+ }
+
+ return NULL;
+}
+
+/* FIXME: add only name when we have NSM solved */
+static int reg_name_entry_add_name_instance(char * name, instance_name_t * api)
+{
+ struct reg_name_entry * e = find_reg_name_entry_by_name(name);
+ if (e == NULL) {
+ e = reg_name_entry_create();
+ e = reg_name_entry_init(e, name, api);
+ list_add(&e->next, &instance->reg_names);
+ return 0;
+ }
+
+ /* already exists, we don't have NSM yet */
+ return -1;
+}
+
+static int reg_name_entry_del_name(char * name)
+{
+ struct reg_name_entry * e = find_reg_name_entry_by_name(name);
+ if (e == NULL)
+ return 0;
+
+ list_del(&e->next);
+
+ reg_name_entry_destroy(e);
+
+ return 0;
}
-static int create_ipcp(instance_name_t * api,
- enum ipcp_type ipcp_type)
+static pid_t create_ipcp(char * ap_name,
+ enum ipcp_type ipcp_type)
{
pid_t pid;
struct ipcp_entry * tmp = NULL;
- pid = ipcp_create(api, ipcp_type);
+ pid = ipcp_create(ap_name, ipcp_type);
if (pid == -1) {
LOG_ERR("Failed to create IPCP");
return -1;
@@ -106,36 +237,42 @@ static int create_ipcp(instance_name_t * api,
INIT_LIST_HEAD(&tmp->next);
- tmp->pid = pid;
- tmp->api = instance_name_dup(api);
+ tmp->api = instance_name_create();
if (tmp->api == NULL) {
free(tmp);
return -1;
}
+ if(instance_name_init_from(tmp->api, ap_name, pid) == NULL) {
+ instance_name_destroy(tmp->api);
+ free(tmp);
+ return -1;
+ }
+
tmp->dif_name = NULL;
LOG_DBG("Created IPC process with pid %d", pid);
list_add(&tmp->next, &instance->ipcps);
- return 0;
+ return pid;
}
static int destroy_ipcp(instance_name_t * api)
{
- pid_t pid = 0;
struct list_head * pos = NULL;
struct list_head * n = NULL;
- pid = find_pid_by_ipcp_name(api);
- if (pid == 0) {
- LOG_ERR("No such IPCP");
+ if (api->id == 0)
+ api = get_ipcp_by_name(api->name);
+
+ if (api == NULL) {
+ LOG_ERR("No such IPCP in the system.");
return -1;
}
- LOG_DBG("Destroying ipcp with pid %d", pid);
+ LOG_DBG("Destroying ipcp %s-%d", api->name, api->id);
- if (ipcp_destroy(pid))
+ if (ipcp_destroy(api->id))
LOG_ERR("Could not destroy IPCP");
list_for_each_safe(pos, n, &(instance->ipcps)) {
@@ -154,7 +291,15 @@ static int bootstrap_ipcp(instance_name_t * api,
{
struct ipcp_entry * entry = NULL;
- entry = find_ipcp_by_name(api);
+ if (api->id == 0)
+ api = get_ipcp_by_name(api->name);
+
+ if (api == NULL) {
+ LOG_ERR("No such IPCP in the system.");
+ return -1;
+ }
+
+ entry = find_ipcp_entry_by_name(api);
if (entry == NULL) {
LOG_ERR("No such IPCP");
return -1;
@@ -166,7 +311,7 @@ static int bootstrap_ipcp(instance_name_t * api,
return -1;
}
- if (ipcp_bootstrap(entry->pid, conf)) {
+ if (ipcp_bootstrap(entry->api->id, conf)) {
LOG_ERR("Could not bootstrap IPCP");
free(entry->dif_name);
entry->dif_name = NULL;
@@ -184,7 +329,7 @@ static int enroll_ipcp(instance_name_t * api,
ssize_t n_1_difs_size = 0;
struct ipcp_entry * entry = NULL;
- entry = find_ipcp_by_name(api);
+ entry = find_ipcp_entry_by_name(api);
if (entry == NULL) {
LOG_ERR("No such IPCP");
return -1;
@@ -212,7 +357,7 @@ static int enroll_ipcp(instance_name_t * api,
return -1;
}
- if (ipcp_enroll(entry->pid, member, n_1_difs[0])) {
+ if (ipcp_enroll(entry->api->id, member, n_1_difs[0])) {
LOG_ERR("Could not enroll IPCP");
free(entry->dif_name);
entry->dif_name = NULL;
@@ -226,15 +371,7 @@ static int reg_ipcp(instance_name_t * api,
char ** difs,
size_t difs_size)
{
- pid_t pid = 0;
-
- pid = find_pid_by_ipcp_name(api);
- if (pid == 0) {
- LOG_ERR("No such IPCP");
- return -1;
- }
-
- if (ipcp_reg(pid, difs, difs_size)) {
+ if (ipcp_reg(api->id, difs, difs_size)) {
LOG_ERR("Could not register IPCP to N-1 DIF(s)");
return -1;
}
@@ -246,15 +383,8 @@ static int unreg_ipcp(instance_name_t * api,
char ** difs,
size_t difs_size)
{
- pid_t pid = 0;
-
- pid = find_pid_by_ipcp_name(api);
- if (pid == 0) {
- LOG_ERR("No such IPCP");
- return -1;
- }
- if (ipcp_unreg(pid, difs, difs_size)) {
+ if (ipcp_unreg(api->id, difs, difs_size)) {
LOG_ERR("Could not unregister IPCP from N-1 DIF(s)");
return -1;
}
@@ -262,20 +392,162 @@ static int unreg_ipcp(instance_name_t * api,
return 0;
}
-static int ap_reg(char * ap_name,
+static int ap_unreg_id(uint32_t reg_ap_id,
+ pid_t pid,
+ char ** difs,
+ size_t len)
+{
+ int i;
+ int ret = 0;
+ struct reg_name_entry * rne = NULL;
+ struct list_head * pos = NULL;
+
+ rne = find_reg_name_entry_by_id(reg_ap_id);
+ if (rne == NULL)
+ return 0; /* no such id */
+
+ if (instance->ipcps.next == NULL) {
+ LOG_ERR("No IPCPs in this system.");
+ return 0;
+ }
+
+ if (strcmp(difs[0], ALL_DIFS) == 0) {
+ list_for_each(pos, &instance->ipcps) {
+ struct ipcp_entry * e =
+ list_entry(pos, struct ipcp_entry, next);
+
+ if (ipcp_name_unreg(e->api->id, rne->name)) {
+ LOG_ERR("Could not unregister %s in DIF %s.",
+ rne->name, e->dif_name);
+ --ret;
+ }
+ }
+ } else {
+ for (i = 0; i < len; ++i) {
+ if (ipcp_name_unreg(pid, rne->name)) {
+ LOG_ERR("Could not unregister %s in DIF %s.",
+ rne->name, difs[i]);
+ --ret;
+ }
+ }
+ }
+
+ reg_name_entry_del_name(rne->name);
+
+ return ret;
+}
+
+static int ap_reg(char * ap_name,
+ pid_t ap_id,
char ** difs,
- size_t difs_size)
+ size_t len)
{
- return -1;
+ int i;
+ int ret = 0;
+ int reg_ap_id = 0;
+ struct list_head * pos = NULL;
+ struct reg_name_entry * rne = NULL;
+
+ instance_name_t * api = NULL;
+ instance_name_t * ipcpi = NULL;
+
+ if (instance->ipcps.next == NULL)
+ LOG_ERR("No IPCPs in this system.");
+
+ /* check if this ap_name is already registered */
+ rne = find_reg_name_entry_by_name(ap_name);
+ if (rne != NULL)
+ return -1; /* can only register one instance for now */
+
+ rne = reg_name_entry_create();
+ if (rne == NULL)
+ return -1;
+
+ api = instance_name_create();
+ if (instance_name_init_from(api, ap_name, ap_id) == NULL) {
+ instance_name_destroy(api);
+ return -1;
+ }
+
+ /*
+ * for now, the whatevercast name is the same as the ap_name and
+ * contains a single instance only
+ */
+
+ if (reg_name_entry_init(rne, strdup(ap_name), api) == NULL) {
+ reg_name_entry_destroy(rne);
+ instance_name_destroy(api);
+ return -1;
+ }
+
+ if (strcmp(difs[0], ALL_DIFS) == 0) {
+ list_for_each(pos, &instance->ipcps) {
+ struct ipcp_entry * e =
+ list_entry(pos, struct ipcp_entry, next);
+
+ if (ipcp_name_reg(e->api->id, ap_name)) {
+ LOG_ERR("Could not register %s in DIF %s.",
+ api->name, e->dif_name);
+ } else {
+ ++ret;
+ }
+ }
+ } else {
+ for (i = 0; i < len; ++i) {
+ ipcpi = get_ipcp_by_dif_name(difs[i]);
+ if (ipcpi == NULL) {
+ LOG_ERR("%s: No such DIF.", difs[i]);
+ continue;
+ }
+
+ if (ipcp_name_reg(ipcpi->id, api->name)) {
+ LOG_ERR("Could not register %s in DIF %s.",
+ api->name, difs[i]);
+ } else {
+ ++ret;
+ }
+ }
+ }
+
+ if (ret == 0) {
+ instance_name_destroy(api);
+ return -1;
+ }
+ /* for now, we register single instances */
+ reg_name_entry_add_name_instance(strdup(ap_name),
+ instance_name_dup(api));
+ instance_name_destroy(api);
+
+ return reg_ap_id;
}
-static int ap_unreg(char * ap_name,
+static int ap_unreg(char * ap_name,
+ pid_t ap_id,
char ** difs,
- size_t difs_size)
+ size_t len)
{
- return -1;
+ struct reg_name_entry * tmp = NULL;
+
+ instance_name_t * api = instance_name_create();
+ if (api == NULL)
+ return -1;
+
+ if (instance_name_init_from(api, ap_name, ap_id) == NULL) {
+ instance_name_destroy(api);
+ return -1;
+ }
+
+ /* check if ap_name is registered */
+ tmp = find_reg_name_entry_by_name(api->name);
+ if (tmp == NULL) {
+ instance_name_destroy(api);
+ return 0;
+ } else {
+ return ap_unreg_id(tmp->reg_ap_id, api->id, difs, len);
+ }
}
+
static int flow_accept(int fd,
char * ap_name,
char * ae_name)
@@ -340,7 +612,7 @@ void irmd_sig_handler(int sig, siginfo_t * info, void * c)
case SIGINT:
case SIGTERM:
case SIGHUP:
- shm_du_map_close(dum);
+ shm_du_map_close(instance->dum);
free(instance);
exit(0);
default:
@@ -356,7 +628,7 @@ int main()
struct sigaction sig_act;
/* init sig_act */
- memset (&sig_act, 0, sizeof sig_act);
+ memset(&sig_act, 0, sizeof sig_act);
/* install signal traps */
sig_act.sa_sigaction = &irmd_sig_handler;
@@ -366,21 +638,24 @@ int main()
sigaction(SIGTERM, &sig_act, NULL);
sigaction(SIGHUP, &sig_act, NULL);
-
if (access("/dev/shm/" SHM_DU_MAP_FILENAME, F_OK) != -1)
unlink("/dev/shm/" SHM_DU_MAP_FILENAME);
- if ((dum = shm_du_map_create()) == NULL)
- return -1;
-
instance = malloc(sizeof(*instance));
if (instance == NULL)
return -1;
+ if ((instance->dum = shm_du_map_create()) == NULL) {
+ free(instance);
+ return -1;
+ }
+
INIT_LIST_HEAD(&instance->ipcps);
+ INIT_LIST_HEAD(&instance->reg_names);
sockfd = server_socket_open(IRM_SOCK_PATH);
if (sockfd < 0) {
+ shm_du_map_close(instance->dum);
free(instance);
return -1;
}
@@ -415,12 +690,13 @@ int main()
}
api.name = msg->ap_name;
- api.id = msg->api_id;
+ if (msg->has_api_id == true)
+ api.id = msg->api_id;
switch (msg->code) {
case IRM_MSG_CODE__IRM_CREATE_IPCP:
ret_msg.has_result = true;
- ret_msg.result = create_ipcp(&api,
+ ret_msg.result = create_ipcp(msg->ap_name,
msg->ipcp_type);
break;
case IRM_MSG_CODE__IRM_DESTROY_IPCP:
@@ -451,12 +727,14 @@ int main()
case IRM_MSG_CODE__IRM_AP_REG:
ret_msg.has_fd = true;
ret_msg.fd = ap_reg(msg->ap_name,
+ msg->pid,
msg->dif_name,
msg->n_dif_name);
break;
case IRM_MSG_CODE__IRM_AP_UNREG:
ret_msg.has_result = true;
ret_msg.result = ap_unreg(msg->ap_name,
+ msg->pid,
msg->dif_name,
msg->n_dif_name);
break;
@@ -473,15 +751,15 @@ int main()
break;
case IRM_MSG_CODE__IRM_FLOW_ALLOC:
ret_msg.has_fd = true;
- ret_msg.fd = flow_alloc(msg->dst_ap_name,
+ ret_msg.fd = flow_alloc(msg->dst_name,
msg->ap_name,
msg->ae_name,
NULL,
msg->oflags);
break;
case IRM_MSG_CODE__IRM_FLOW_ALLOC_RES:
- ret_msg.has_result = true;
- ret_msg.result = flow_alloc_res(msg->fd);
+ ret_msg.has_response = true;
+ ret_msg.response = flow_alloc_res(msg->fd);
break;
case IRM_MSG_CODE__IRM_FLOW_DEALLOC:
ret_msg.has_result = true;
@@ -493,15 +771,15 @@ int main()
msg->oflags);
break;
case IRM_MSG_CODE__IPCP_FLOW_REQ_ARR:
- ret_msg.has_fd = true;
- ret_msg.fd = flow_req_arr(msg->port_id,
- msg->ap_name,
- msg->ae_name);
+ ret_msg.has_port_id = true;
+ ret_msg.port_id = flow_req_arr(msg->port_id,
+ msg->ap_name,
+ msg->ae_name);
break;
case IRM_MSG_CODE__IPCP_FLOW_ALLOC_REPLY:
ret_msg.has_result = true;
ret_msg.result = flow_alloc_reply(msg->port_id,
- msg->result);
+ msg->response);
break;
case IRM_MSG_CODE__IPCP_FLOW_DEALLOC:
ret_msg.has_result = true;
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 16:53:04 +0000