ipcpd: Refactor ipcpi struct

The ipcp-ops header was removed and merged into ipcp.h. The common
components dif_name and ipcp_type have been moved to the main ipcp
struct. After this move, ipcp_data only contained shim information, so
it was renamed to shim_data. The ipcp_init() function checks the type
and will only include the shim_data if the type is not an IPCP_NORMAL.
All ipcps have been adapted to this change in API.

1 files changed, 0 insertions, 533 deletions

diff --git a/src/ipcpd/ipcp-data.c b/src/ipcpd/ipcp-data.c
deleted file mode 100644
index 47c4c472..00000000
--- a/src/ipcpd/ipcp-data.c
+++ /dev/null
@@ -1,533 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2017
- *
- * IPC process utilities
- *
- *    Dimitri Staessens <[email protected]>
- *    Sander Vrijders   <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#define OUROBOROS_PREFIX "ipcp-utils"
-
-#include <ouroboros/config.h>
-#include <ouroboros/list.h>
-#include <ouroboros/time_utils.h>
-#include <ouroboros/logs.h>
-#include <ouroboros/errno.h>
-
-#include "ipcp-data.h"
-#include "ipcp.h"
-
-#include <string.h>
-#include <stdlib.h>
-#include <assert.h>
-
-struct reg_entry {
-        struct list_head list;
-        char *           name;
-};
-
-struct dir_entry {
-        struct list_head list;
-        char *           name;
-        uint64_t         addr;
-};
-
-static struct reg_entry * reg_entry_create(char * name)
-{
-        struct reg_entry * entry = malloc(sizeof(*entry));
-        if (entry == NULL)
-                return NULL;
-
-        assert(name);
-
-        entry->name = name;
-        if (entry->name == NULL)
-                return NULL;
-
-        return entry;
-}
-
-static void reg_entry_destroy(struct reg_entry * entry)
-{
-        assert(entry);
-
-        if (entry->name != NULL)
-                free(entry->name);
-
-        free(entry);
-}
-
-static struct dir_entry * dir_entry_create(char *   name,
-                                           uint64_t addr)
-{
-        struct dir_entry * entry = malloc(sizeof(*entry));
-        if (entry == NULL)
-                return NULL;
-
-        assert(name);
-
-        entry->addr    = addr;
-        entry->name = name;
-        if (entry->name == NULL)
-                return NULL;
-
-        return entry;
-}
-
-static void dir_entry_destroy(struct dir_entry * entry)
-{
-        assert(entry);
-
-        if (entry->name != NULL)
-                free(entry->name);
-
-        free(entry);
-}
-
-struct ipcp_data * ipcp_data_create()
-{
-        struct ipcp_data * data = malloc(sizeof(*data));
-        if (data == NULL)
-                return NULL;
-
-        data->type = 0;
-
-        return data;
-}
-
-struct ipcp_data * ipcp_data_init(struct ipcp_data * dst,
-                                  enum ipcp_type     ipcp_type)
-{
-        if (dst == NULL)
-                return NULL;
-
-        dst->type  = ipcp_type;
-        dst->dif_name = NULL;
-
-        /* init the lists */
-        list_head_init(&dst->registry);
-        list_head_init(&dst->directory);
-        list_head_init(&dst->dir_queries);
-
-        /* init the locks */
-        pthread_rwlock_init(&dst->reg_lock, NULL);
-        pthread_rwlock_init(&dst->dir_lock, NULL);
-        pthread_mutex_init(&dst->dir_queries_lock, NULL);
-
-        return dst;
-}
-
-static void clear_registry(struct ipcp_data * data)
-{
-        struct list_head * h;
-        struct list_head * t;
-
-        assert(data);
-
-        list_for_each_safe(h, t, &data->registry) {
-                struct reg_entry * e = list_entry(h, struct reg_entry, list);
-                list_del(&e->list);
-                reg_entry_destroy(e);
-        }
-}
-
-static void clear_directory(struct ipcp_data * data)
-{
-        struct list_head * h;
-        struct list_head * t;
-
-        assert(data);
-
-        list_for_each_safe(h, t, &data->directory) {
-                struct dir_entry * e = list_entry(h, struct dir_entry, list);
-                list_del(&e->list);
-                dir_entry_destroy(e);
-        }
-}
-
-static void clear_dir_queries(struct ipcp_data * data)
-{
-        struct list_head * h;
-        struct list_head * t;
-
-        assert(data);
-
-        list_for_each_safe(h, t, &data->dir_queries) {
-                struct dir_query * e = list_entry(h, struct dir_query, next);
-                list_del(&e->next);
-                ipcp_data_dir_query_destroy(e);
-        }
-}
-
-void ipcp_data_destroy(struct ipcp_data * data)
-{
-        if (data == NULL)
-                return;
-
-        /* clear the lists */
-        pthread_rwlock_wrlock(&data->reg_lock);
-        clear_registry(data);
-        pthread_rwlock_unlock(&data->reg_lock);
-
-        pthread_rwlock_wrlock(&data->dir_lock);
-        clear_directory(data);
-        pthread_rwlock_unlock(&data->dir_lock);
-
-        pthread_mutex_lock(&data->dir_queries_lock);
-        clear_dir_queries(data);
-        pthread_mutex_unlock(&data->dir_queries_lock);
-
-        if (data->dif_name != NULL)
-                free(data->dif_name);
-
-        pthread_rwlock_destroy(&data->dir_lock);
-        pthread_rwlock_destroy(&data->reg_lock);
-        pthread_mutex_destroy(&data->dir_queries_lock);
-
-        free(data);
-}
-
-static struct reg_entry * find_reg_entry_by_name(struct ipcp_data * data,
-                                                 const char *       name)
-{
-        struct list_head * h;
-
-        assert(data);
-        assert(name);
-
-        list_for_each(h, &data->registry) {
-                struct reg_entry * e = list_entry(h, struct reg_entry, list);
-                if (!strcmp(e->name, name))
-                        return e;
-        }
-
-        return NULL;
-}
-
-static struct dir_entry * find_dir_entry(struct ipcp_data * data,
-                                         const char *       name,
-                                         uint64_t           addr)
-{
-        struct list_head * h;
-        list_for_each(h, &data->directory) {
-                struct dir_entry * e = list_entry(h, struct dir_entry, list);
-                if (e->addr == addr && !strcmp(e->name, name))
-                        return e;
-        }
-
-        return NULL;
-}
-
-static struct dir_entry * find_dir_entry_any(struct ipcp_data * data,
-                                             const char *       name)
-{
-        struct list_head * h;
-        list_for_each(h, &data->directory) {
-                struct dir_entry * e = list_entry(h, struct dir_entry, list);
-                if (!strcmp(e->name, name))
-                        return e;
-        }
-
-        return NULL;
-}
-
-int ipcp_data_reg_add_entry(struct ipcp_data * data,
-                            char *             name)
-{
-        struct reg_entry * entry;
-
-        if (data == NULL || name == NULL)
-                return -1;
-
-        pthread_rwlock_wrlock(&data->reg_lock);
-
-        if (find_reg_entry_by_name(data, name)) {
-                pthread_rwlock_unlock(&data->reg_lock);
-                return -1;
-        }
-
-        entry = reg_entry_create(name);
-        if (entry == NULL) {
-                pthread_rwlock_unlock(&data->reg_lock);
-                return -1;
-        }
-
-        list_add(&entry->list, &data->registry);
-
-        pthread_rwlock_unlock(&data->reg_lock);
-
-        return 0;
-}
-
-int ipcp_data_reg_del_entry(struct ipcp_data * data,
-                            const char *       name)
-{
-        struct reg_entry * e;
-        if (data == NULL)
-                return -1;
-
-        pthread_rwlock_wrlock(&data->reg_lock);
-
-        e = find_reg_entry_by_name(data, name);
-        if (e == NULL) {
-                pthread_rwlock_unlock(&data->reg_lock);
-                return 0; /* nothing to do */
-        }
-
-        list_del(&e->list);
-
-        pthread_rwlock_unlock(&data->reg_lock);
-
-        reg_entry_destroy(e);
-
-        return 0;
-}
-
-bool ipcp_data_reg_has(struct ipcp_data * data,
-                       const char *       name)
-{
-        bool ret = false;
-
-        if (data == NULL || name == NULL)
-                return false;
-
-        pthread_rwlock_rdlock(&data->reg_lock);
-
-        ret = (find_reg_entry_by_name(data, name) != NULL);
-
-        pthread_rwlock_unlock(&data->reg_lock);
-
-        return ret;
-}
-
-int ipcp_data_dir_add_entry(struct ipcp_data * data,
-                            char *             name,
-                            uint64_t           addr)
-{
-        struct dir_entry * entry;
-        char * entry_name;
-
-        if (data == NULL || name == NULL)
-                return -1;
-
-        pthread_rwlock_wrlock(&data->dir_lock);
-
-        if (find_dir_entry(data, name, addr) != NULL) {
-                pthread_rwlock_unlock(&data->dir_lock);
-                return -1;
-        }
-
-        entry_name = strdup(name);
-        if (entry_name == NULL) {
-                pthread_rwlock_unlock(&data->dir_lock);
-                return -1;
-        }
-
-        entry = dir_entry_create(entry_name, addr);
-        if (entry == NULL) {
-                pthread_rwlock_unlock(&data->dir_lock);
-                return -1;
-        }
-
-        list_add(&entry->list,&data->directory);
-
-        pthread_rwlock_unlock(&data->dir_lock);
-
-        LOG_DBG("Added directory entry for %s.", entry_name);
-
-        return 0;
-}
-
-int ipcp_data_dir_del_entry(struct ipcp_data * data,
-                            const char *       name,
-                            uint64_t           addr)
-{
-        struct dir_entry * e;
-        if (data == NULL)
-                return -1;
-
-        pthread_rwlock_wrlock(&data->dir_lock);
-
-        e = find_dir_entry(data, name, addr);
-        if (e == NULL) {
-                pthread_rwlock_unlock(&data->dir_lock);
-                return 0; /* nothing to do */
-        }
-
-        list_del(&e->list);
-
-        pthread_rwlock_unlock(&data->dir_lock);
-
-        dir_entry_destroy(e);
-
-        return 0;
-}
-
-bool ipcp_data_dir_has(struct ipcp_data * data,
-                       const char *       name)
-{
-        bool ret = false;
-
-        pthread_rwlock_rdlock(&data->dir_lock);
-
-        ret = (find_dir_entry_any(data, name) != NULL);
-
-        pthread_rwlock_unlock(&data->dir_lock);
-
-        return ret;
-}
-
-uint64_t ipcp_data_dir_get_addr(struct ipcp_data * data,
-                                const char *       name)
-{
-        struct dir_entry * entry;
-        uint64_t           addr;
-
-        pthread_rwlock_rdlock(&data->dir_lock);
-
-        entry = find_dir_entry_any(data, name);
-
-        if (entry == NULL) {
-                pthread_rwlock_unlock(&data->dir_lock);
-                return 0; /* undefined behaviour, 0 may be a valid address */
-        }
-
-        addr = entry->addr;
-
-        pthread_rwlock_unlock(&data->dir_lock);
-
-        return addr;
-}
-
-struct dir_query * ipcp_data_dir_query_create(char * name)
-{
-        struct dir_query * query;
-        pthread_condattr_t cattr;
-
-        query = malloc(sizeof(*query));
-        if (query == NULL)
-                return NULL;
-
-        query->name = strdup(name);
-        if (query->name == NULL) {
-                free(query);
-                return NULL;
-        }
-
-        query->state = QUERY_INIT;
-
-        pthread_condattr_init(&cattr);
-#ifndef __APPLE__
-        pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
-#endif
-        pthread_cond_init(&query->cond, &cattr);
-        pthread_mutex_init(&query->lock, NULL);
-
-        list_head_init(&query->next);
-
-        return query;
-}
-
-void ipcp_data_dir_query_respond(struct dir_query * query)
-{
-        assert(query);
-
-        pthread_mutex_lock(&query->lock);
-
-        if (query->state != QUERY_PENDING) {
-                pthread_mutex_unlock(&query->lock);
-                return;
-        }
-
-        query->state = QUERY_RESPONSE;
-        pthread_cond_broadcast(&query->cond);
-
-        while (query->state == QUERY_RESPONSE)
-                pthread_cond_wait(&query->cond, &query->lock);
-
-        pthread_mutex_unlock(&query->lock);
-}
-
-void ipcp_data_dir_query_destroy(struct dir_query * query)
-{
-        assert(query);
-
-        pthread_mutex_lock(&query->lock);
-
-        if (query->state == QUERY_DESTROY) {
-                pthread_mutex_unlock(&query->lock);
-                return;
-        }
-
-        if (query->state == QUERY_INIT)
-                query->state = QUERY_DONE;
-
-        if (query->state == QUERY_PENDING) {
-                query->state = QUERY_DESTROY;
-                pthread_cond_broadcast(&query->cond);
-        }
-
-        while (query->state != QUERY_DONE)
-                pthread_cond_wait(&query->cond, &query->lock);
-
-        pthread_mutex_unlock(&query->lock);
-
-        pthread_cond_destroy(&query->cond);
-        pthread_mutex_destroy(&query->lock);
-
-        free(query->name);
-        free(query);
-}
-
-int ipcp_data_dir_query_wait(struct dir_query * query,
-                             const struct timespec * timeout)
-{
-        struct timespec abstime;
-        int ret = 0;
-
-        assert(query);
-        assert(timeout);
-
-        clock_gettime(PTHREAD_COND_CLOCK, &abstime);
-        ts_add(&abstime, timeout, &abstime);
-
-        pthread_mutex_lock(&query->lock);
-
-        if (query->state != QUERY_INIT) {
-                pthread_mutex_unlock(&query->lock);
-                return -EINVAL;
-        }
-
-        query->state = QUERY_PENDING;
-
-        while (query->state == QUERY_PENDING) {
-                if ((ret = -pthread_cond_timedwait(&query->cond,
-                                                   &query->lock,
-                                                   &abstime)) == -ETIMEDOUT)
-                        break;
-        }
-
-        if (query->state == QUERY_DESTROY)
-                ret = -1;
-
-        query->state = QUERY_DONE;
-        pthread_cond_broadcast(&query->cond);
-
-        pthread_mutex_unlock(&query->lock);
-
-        return ret;
-}