ipcpd: Revise Data Transfer component0.10.0

This makes the TTL non-optional and allows the maximum (initial) value
of the TTL to be specified at bootstrap (the default is set to
60). The fd in the DT PCI is now called EID (Endpoint ID). The names
"dif" and "ae" have been replaced by "layer" and "component"
respectively in all sources.

Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>

5 files changed, 97 insertions, 97 deletions

diff --git a/src/irmd/ipcp.c b/src/irmd/ipcp.c
index 1b28c325..87cbaca5 100644
--- a/src/irmd/ipcp.c
+++ b/src/irmd/ipcp.c
@@ -205,7 +205,7 @@ int ipcp_destroy(pid_t pid)
 
 int ipcp_bootstrap(pid_t               pid,
                    ipcp_config_msg_t * conf,
-                   struct dif_info   * info)
+                   struct layer_info * info)
 {
         ipcp_msg_t   msg      = IPCP_MSG__INIT;
         ipcp_msg_t * recv_msg = NULL;
@@ -232,13 +232,13 @@ int ipcp_bootstrap(pid_t               pid,
                 return ret;
         }
 
-        if (recv_msg->dif_info == NULL) {
+        if (recv_msg->layer_info == NULL) {
                 ipcp_msg__free_unpacked(recv_msg, NULL);
                 return -EIPCP;
         }
 
-        info->dir_hash_algo = recv_msg->dif_info->dir_hash_algo;
-        strcpy(info->dif_name, recv_msg->dif_info->dif_name);
+        info->dir_hash_algo = recv_msg->layer_info->dir_hash_algo;
+        strcpy(info->layer_name, recv_msg->layer_info->layer_name);
 
         ret = recv_msg->result;
         ipcp_msg__free_unpacked(recv_msg, NULL);
@@ -246,9 +246,9 @@ int ipcp_bootstrap(pid_t               pid,
         return ret;
 }
 
-int ipcp_enroll(pid_t             pid,
-                const char *      dst,
-                struct dif_info * info)
+int ipcp_enroll(pid_t               pid,
+                const char *        dst,
+                struct layer_info * info)
 {
         ipcp_msg_t   msg      = IPCP_MSG__INIT;
         ipcp_msg_t * recv_msg = NULL;
@@ -275,13 +275,13 @@ int ipcp_enroll(pid_t             pid,
                 return ret;
         }
 
-        if (recv_msg->dif_info == NULL) {
+        if (recv_msg->layer_info == NULL) {
                 ipcp_msg__free_unpacked(recv_msg, NULL);
                 return -EIPCP;
         }
 
-        info->dir_hash_algo = recv_msg->dif_info->dir_hash_algo;
-        strcpy(info->dif_name, recv_msg->dif_info->dif_name);
+        info->dir_hash_algo = recv_msg->layer_info->dir_hash_algo;
+        strcpy(info->layer_name, recv_msg->layer_info->layer_name);
 
         ipcp_msg__free_unpacked(recv_msg, NULL);
 
diff --git a/src/irmd/ipcp.h b/src/irmd/ipcp.h
index 5a1c2fe4..8ff062b2 100644
--- a/src/irmd/ipcp.h
+++ b/src/irmd/ipcp.h
@@ -34,13 +34,13 @@ pid_t ipcp_create(const char *   name,
 
 int   ipcp_destroy(pid_t pid);
 
-int   ipcp_enroll(pid_t             pid,
-                  const char *      dst,
-                  struct dif_info * info);
+int   ipcp_enroll(pid_t               pid,
+                  const char *        dst,
+                  struct layer_info * info);
 
 int   ipcp_bootstrap(pid_t               pid,
                      ipcp_config_msg_t * conf,
-                     struct dif_info *   info);
+                     struct layer_info * info);
 
 int   ipcp_connect(pid_t        pid,
                    const char * dst,
diff --git a/src/irmd/main.c b/src/irmd/main.c
index e9446ade..658811e2 100644
--- a/src/irmd/main.c
+++ b/src/irmd/main.c
@@ -82,7 +82,7 @@ struct ipcp_entry {
         pid_t            pid;
         enum ipcp_type   type;
         enum hash_algo   dir_hash_algo;
-        char *           dif_name;
+        char *           layer_name;
 
         enum init_state  init_state;
         pthread_cond_t   init_cond;
@@ -202,8 +202,8 @@ static struct ipcp_entry * ipcp_entry_create(void)
         if (e == NULL)
                 return NULL;
 
-        e->name = NULL;
-        e->dif_name = NULL;
+        e->name       = NULL;
+        e->layer_name = NULL;
 
         list_head_init(&e->next);
 
@@ -224,8 +224,8 @@ static void ipcp_entry_destroy(struct ipcp_entry * e)
         if (e->name != NULL)
                 free(e->name);
 
-        if (e->dif_name != NULL)
-                free(e->dif_name);
+        if (e->layer_name != NULL)
+                free(e->layer_name);
 
         free(e);
 }
@@ -268,7 +268,7 @@ static struct ipcp_entry * get_ipcp_by_dst_name(const char * name,
 
         list_for_each_safe(p, h, &irmd.ipcps) {
                 struct ipcp_entry * e = list_entry(p, struct ipcp_entry, next);
-                if (e->dif_name == NULL || e->pid == src)
+                if (e->layer_name == NULL || e->pid == src)
                         continue;
 
                 hash = malloc(IPCP_HASH_LEN(e));
@@ -361,7 +361,7 @@ static pid_t create_ipcp(char *         name,
         pthread_mutex_init(&tmp->init_lock, NULL);
 
         tmp->pid           = ppid->pid;
-        tmp->dif_name      = NULL;
+        tmp->layer_name    = NULL;
         tmp->type          = ipcp_type;
         tmp->init_state    = IPCP_BOOT;
         tmp->dir_hash_algo = -1;
@@ -477,7 +477,7 @@ static int bootstrap_ipcp(pid_t               pid,
                           ipcp_config_msg_t * conf)
 {
         struct ipcp_entry * entry = NULL;
-        struct dif_info     info;
+        struct layer_info   info;
 
         pthread_rwlock_wrlock(&irmd.reg_lock);
 
@@ -500,8 +500,8 @@ static int bootstrap_ipcp(pid_t               pid,
                 return -1;
         }
 
-        entry->dif_name = strdup(info.dif_name);
-        if (entry->dif_name == NULL) {
+        entry->layer_name = strdup(info.layer_name);
+        if (entry->layer_name == NULL) {
                 pthread_rwlock_unlock(&irmd.reg_lock);
                 log_warn("Failed to set name of layer.");
                 return -ENOMEM;
@@ -512,7 +512,7 @@ static int bootstrap_ipcp(pid_t               pid,
         pthread_rwlock_unlock(&irmd.reg_lock);
 
         log_info("Bootstrapped IPCP %d in layer %s.",
-                 pid, conf->dif_info->dif_name);
+                 pid, conf->layer_info->layer_name);
 
         return 0;
 }
@@ -521,7 +521,7 @@ static int enroll_ipcp(pid_t  pid,
                        char * dst_name)
 {
         struct ipcp_entry * entry = NULL;
-        struct dif_info     info;
+        struct layer_info   info;
 
         pthread_rwlock_wrlock(&irmd.reg_lock);
 
@@ -532,7 +532,7 @@ static int enroll_ipcp(pid_t  pid,
                 return -1;
         }
 
-        if (entry->dif_name != NULL) {
+        if (entry->layer_name != NULL) {
                 pthread_rwlock_unlock(&irmd.reg_lock);
                 log_err("IPCP in wrong state");
                 return -1;
@@ -554,10 +554,10 @@ static int enroll_ipcp(pid_t  pid,
                 return -1;
         }
 
-        entry->dif_name = strdup(info.dif_name);
-        if (entry->dif_name == NULL) {
+        entry->layer_name = strdup(info.layer_name);
+        if (entry->layer_name == NULL) {
                 pthread_rwlock_unlock(&irmd.reg_lock);
-                log_err("Failed to strdup dif_name.");
+                log_err("Failed to strdup layer_name.");
                 return -ENOMEM;
         }
 
@@ -566,7 +566,7 @@ static int enroll_ipcp(pid_t  pid,
         pthread_rwlock_unlock(&irmd.reg_lock);
 
         log_info("Enrolled IPCP %d in layer %s.",
-                 pid, info.dif_name);
+                 pid, info.layer_name);
 
         return 0;
 }
@@ -873,7 +873,7 @@ static ssize_t list_ipcps(char *   name,
 }
 
 static int name_reg(const char *  name,
-                    char **       difs,
+                    char **       layers,
                     size_t        len)
 {
         size_t i;
@@ -882,8 +882,8 @@ static int name_reg(const char *  name,
 
         assert(name);
         assert(len);
-        assert(difs);
-        assert(difs[0]);
+        assert(layers);
+        assert(layers[0]);
 
         pthread_rwlock_wrlock(&irmd.reg_lock);
 
@@ -929,7 +929,7 @@ static int name_reg(const char *  name,
 
         list_for_each(p, &irmd.ipcps) {
                 struct ipcp_entry * e = list_entry(p, struct ipcp_entry, next);
-                if (e->dif_name == NULL)
+                if (e->layer_name == NULL)
                         continue;
 
                 for (i = 0; i < len; ++i) {
@@ -937,7 +937,7 @@ static int name_reg(const char *  name,
                         pid_t     pid;
                         size_t    len;
 
-                        if (wildcard_match(difs[i], e->dif_name))
+                        if (wildcard_match(layers[i], e->layer_name))
                                 continue;
 
                         hash = malloc(IPCP_HASH_LEN(e));
@@ -962,15 +962,15 @@ static int name_reg(const char *  name,
 
                         pthread_rwlock_wrlock(&irmd.reg_lock);
 
-                        if (registry_add_name_to_dif(&irmd.registry,
-                                                     name,
-                                                     e->dif_name,
-                                                     e->type) < 0)
+                        if (registry_add_name_to_layer(&irmd.registry,
+                                                       name,
+                                                       e->layer_name,
+                                                       e->type) < 0)
                                 log_warn("Registered unbound name %s. "
                                          "Registry may be corrupt.",
                                          name);
                         log_info("Registered %s in %s as " HASH_FMT ".",
-                                 name, e->dif_name, HASH_VAL(hash));
+                                 name, e->layer_name, HASH_VAL(hash));
                         ++ret;
 
                         free(hash);
@@ -983,7 +983,7 @@ static int name_reg(const char *  name,
 }
 
 static int name_unreg(const char *  name,
-                      char **       difs,
+                      char **       layers,
                       size_t        len)
 {
         size_t i;
@@ -992,8 +992,8 @@ static int name_unreg(const char *  name,
 
         assert(name);
         assert(len);
-        assert(difs);
-        assert(difs[0]);
+        assert(layers);
+        assert(layers[0]);
 
         pthread_rwlock_wrlock(&irmd.reg_lock);
 
@@ -1001,7 +1001,7 @@ static int name_unreg(const char *  name,
                 struct ipcp_entry * e =
                         list_entry(pos, struct ipcp_entry, next);
 
-                if (e->dif_name == NULL)
+                if (e->layer_name == NULL)
                         continue;
 
                 for (i = 0; i < len; ++i) {
@@ -1009,7 +1009,7 @@ static int name_unreg(const char *  name,
                         pid_t     pid;
                         size_t    len;
 
-                        if (wildcard_match(difs[i], e->dif_name))
+                        if (wildcard_match(layers[i], e->layer_name))
                                 continue;
 
                         hash = malloc(IPCP_HASH_LEN(e));
@@ -1033,11 +1033,11 @@ static int name_unreg(const char *  name,
 
                         pthread_rwlock_wrlock(&irmd.reg_lock);
 
-                        registry_del_name_from_dif(&irmd.registry,
-                                                   name,
-                                                   e->dif_name);
+                        registry_del_name_from_layer(&irmd.registry,
+                                                     name,
+                                                     e->layer_name);
                         log_info("Unregistered %s from %s.",
-                                 name, e->dif_name);
+                                 name, e->layer_name);
                         ++ret;
 
                         free(hash);
@@ -1952,7 +1952,7 @@ static void * mainloop(void * o)
                 case IRM_MSG_CODE__IRM_ENROLL_IPCP:
                         ret_msg.has_result = true;
                         ret_msg.result = enroll_ipcp(msg->pid,
-                                                     msg->dif_name[0]);
+                                                     msg->layer_name[0]);
                         break;
                 case IRM_MSG_CODE__IRM_CONNECT_IPCP:
                         ret_msg.has_result = true;
@@ -2001,14 +2001,14 @@ static void * mainloop(void * o)
                 case IRM_MSG_CODE__IRM_REG:
                         ret_msg.has_result = true;
                         ret_msg.result = name_reg(msg->dst_name,
-                                                  msg->dif_name,
-                                                  msg->n_dif_name);
+                                                  msg->layer_name,
+                                                  msg->n_layer_name);
                         break;
                 case IRM_MSG_CODE__IRM_UNREG:
                         ret_msg.has_result = true;
                         ret_msg.result = name_unreg(msg->dst_name,
-                                                    msg->dif_name,
-                                                    msg->n_dif_name);
+                                                    msg->layer_name,
+                                                    msg->n_layer_name);
                         break;
                 case IRM_MSG_CODE__IRM_FLOW_ACCEPT:
                         ret_msg.has_result = true;
diff --git a/src/irmd/registry.c b/src/irmd/registry.c
index 32975b03..ace9f225 100644
--- a/src/irmd/registry.c
+++ b/src/irmd/registry.c
@@ -42,9 +42,9 @@
 #include <limits.h>
 #include <assert.h>
 
-struct reg_dif {
+struct reg_layer {
         struct list_head next;
-        char *           dif_name;
+        char *           layer_name;
         enum ipcp_type   type;
 };
 
@@ -69,7 +69,7 @@ static int reg_entry_init(struct reg_entry * e,
                 return -1;
 
         list_head_init(&e->next);
-        list_head_init(&e->difs);
+        list_head_init(&e->layers);
         list_head_init(&e->reg_progs);
         list_head_init(&e->reg_pids);
 
@@ -121,10 +121,10 @@ static void cancel_reg_entry_destroy(void * o)
                 free(a);
         }
 
-        list_for_each_safe(p, h, &e->difs) {
-                struct reg_dif * d = list_entry(p, struct reg_dif, next);
+        list_for_each_safe(p, h, &e->layers) {
+                struct reg_layer * d = list_entry(p, struct reg_layer, next);
                 list_del(&d->next);
-                free(d->dif_name);
+                free(d->layer_name);
                 free(d);
         }
 
@@ -158,57 +158,57 @@ static void reg_entry_destroy(struct reg_entry * e)
         pthread_cleanup_pop(true);
 }
 
-static bool reg_entry_is_local_in_dif(struct reg_entry * e,
-                                      const char *       dif_name)
+static bool reg_entry_is_local_in_layer(struct reg_entry * e,
+                                        const char *       layer_name)
 {
         struct list_head * p = NULL;
 
-        list_for_each(p, &e->difs) {
-                struct reg_dif * d = list_entry(p, struct reg_dif, next);
-                if (!strcmp(dif_name, d->dif_name))
+        list_for_each(p, &e->layers) {
+                struct reg_layer * d = list_entry(p, struct reg_layer, next);
+                if (!strcmp(layer_name, d->layer_name))
                         return true;
         }
 
         return false;
 }
 
-static int reg_entry_add_local_in_dif(struct reg_entry * e,
-                                      const char *       dif_name,
-                                      enum ipcp_type     type)
+static int reg_entry_add_local_in_layer(struct reg_entry * e,
+                                        const char *       layer_name,
+                                        enum ipcp_type     type)
 {
-        struct reg_dif * rdn;
+        struct reg_layer * rdn;
 
         /* already registered. Is ok */
-        if (reg_entry_is_local_in_dif(e, dif_name))
+        if (reg_entry_is_local_in_layer(e, layer_name))
                 return 0;
 
         rdn = malloc(sizeof(*rdn));
         if (rdn == NULL)
                 return -1;
 
-        rdn->dif_name = strdup(dif_name);
-        if (rdn->dif_name == NULL) {
+        rdn->layer_name = strdup(layer_name);
+        if (rdn->layer_name == NULL) {
                 free(rdn);
                 return -1;
         }
 
         rdn->type = type;
-        list_add(&rdn->next, &e->difs);
+        list_add(&rdn->next, &e->layers);
 
         return 0;
 }
 
-static void reg_entry_del_local_from_dif(struct reg_entry * e,
-                                         const char *       dif_name)
+static void reg_entry_del_local_from_layer(struct reg_entry * e,
+                                           const char *       layer_name)
 {
         struct list_head * p = NULL;
         struct list_head * h = NULL;
 
-        list_for_each_safe(p, h, &e->difs) {
-                struct reg_dif * d = list_entry(p, struct reg_dif, next);
-                if (!strcmp(dif_name, d->dif_name)) {
+        list_for_each_safe(p, h, &e->layers) {
+                struct reg_layer * d = list_entry(p, struct reg_layer, next);
+                if (!strcmp(layer_name, d->layer_name)) {
                         list_del(&d->next);
-                        free(d->dif_name);
+                        free(d->layer_name);
                         free(d);
                 }
         }
@@ -637,27 +637,27 @@ void registry_del_process(struct list_head * registry,
         return;
 }
 
-int registry_add_name_to_dif(struct list_head * registry,
-                             const char *       name,
-                             const char *       dif_name,
-                             enum ipcp_type     type)
+int registry_add_name_to_layer(struct list_head * registry,
+                               const char *       name,
+                               const char *       layer_name,
+                               enum ipcp_type     type)
 {
         struct reg_entry * re = registry_get_entry(registry, name);
         if (re == NULL)
                 return -1;
 
-        return reg_entry_add_local_in_dif(re, dif_name, type);
+        return reg_entry_add_local_in_layer(re, layer_name, type);
 }
 
-void registry_del_name_from_dif(struct list_head * registry,
-                                const char *       name,
-                                const char *       dif_name)
+void registry_del_name_from_layer(struct list_head * registry,
+                                  const char *       name,
+                                  const char *       layer_name)
 {
         struct reg_entry * re = registry_get_entry(registry, name);
         if (re == NULL)
                 return;
 
-        reg_entry_del_local_from_dif(re, dif_name);
+        reg_entry_del_local_from_layer(re, layer_name);
 }
 
 void registry_destroy(struct list_head * registry)
diff --git a/src/irmd/registry.h b/src/irmd/registry.h
index e4e0f6c9..08fa9f28 100644
--- a/src/irmd/registry.h
+++ b/src/irmd/registry.h
@@ -56,7 +56,7 @@ struct reg_entry {
         char *              name;
 
         /* layers in which this name is registered */
-        struct list_head    difs;
+        struct list_head    layers;
         /* Programs that can be instantiated by the irmd */
         struct list_head    reg_progs;
         /* Processes that are listening for this name */
@@ -119,14 +119,14 @@ struct reg_entry *  registry_get_entry_by_hash(struct list_head * registry,
                                                const uint8_t *    hash,
                                                size_t             len);
 
-int                 registry_add_name_to_dif(struct list_head * registry,
-                                             const char *       name,
-                                             const char *       dif_name,
-                                             enum ipcp_type     type);
-
-void                registry_del_name_from_dif(struct list_head * registry,
+int                 registry_add_name_to_layer(struct list_head * registry,
                                                const char *       name,
-                                               const char *       dif_name);
+                                               const char *       layer_name,
+                                               enum ipcp_type     type);
+
+void                registry_del_name_from_layer(struct list_head * registry,
+                                                 const char *       name,
+                                                 const char *       layer_name);
 
 void                registry_destroy(struct list_head * registry);