From 833b26660e556f096b75a1736a11eb3749ed71a0 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 10 Dec 2014 16:02:49 +0000 Subject: [PATCH] libnl-tiny: remove dead code Signed-off-by: Felix Fietkau SVN-Revision: 43599 --- src/cache.c | 463 ----------------------------------------------- src/cache_mngt.c | 122 ------------- src/genl_mngt.c | 81 --------- src/object.c | 132 -------------- src/unl.c | 3 - 5 files changed, 801 deletions(-) diff --git a/src/cache.c b/src/cache.c index 0e14574..56a1280 100644 --- a/src/cache.c +++ b/src/cache.c @@ -46,121 +46,6 @@ #include #include -/** - * @name Access Functions - * @{ - */ - -#ifdef disabled -/** - * Return the number of items in the cache - * @arg cache cache handle - */ -int nl_cache_nitems(struct nl_cache *cache) -{ - return cache->c_nitems; -} - -/** - * Return the number of items matching a filter in the cache - * @arg cache Cache object. - * @arg filter Filter object. - */ -int nl_cache_nitems_filter(struct nl_cache *cache, struct nl_object *filter) -{ - struct nl_object_ops *ops; - struct nl_object *obj; - int nitems = 0; - - if (cache->c_ops == NULL) - BUG(); - - ops = cache->c_ops->co_obj_ops; - - nl_list_for_each_entry(obj, &cache->c_items, ce_list) { - if (filter && !nl_object_match_filter(obj, filter)) - continue; - - nitems++; - } - - return nitems; -} - -/** - * Returns \b true if the cache is empty. - * @arg cache Cache to check - * @return \a true if the cache is empty, otherwise \b false is returned. - */ -int nl_cache_is_empty(struct nl_cache *cache) -{ - return nl_list_empty(&cache->c_items); -} - -/** - * Return the operations set of the cache - * @arg cache cache handle - */ -struct nl_cache_ops *nl_cache_get_ops(struct nl_cache *cache) -{ - return cache->c_ops; -} - -/** - * Return the first element in the cache - * @arg cache cache handle - */ -struct nl_object *nl_cache_get_first(struct nl_cache *cache) -{ - if (nl_list_empty(&cache->c_items)) - return NULL; - - return nl_list_entry(cache->c_items.next, - struct nl_object, ce_list); -} - -/** - * Return the last element in the cache - * @arg cache cache handle - */ -struct nl_object *nl_cache_get_last(struct nl_cache *cache) -{ - if (nl_list_empty(&cache->c_items)) - return NULL; - - return nl_list_entry(cache->c_items.prev, - struct nl_object, ce_list); -} - -/** - * Return the next element in the cache - * @arg obj current object - */ -struct nl_object *nl_cache_get_next(struct nl_object *obj) -{ - if (nl_list_at_tail(obj, &obj->ce_cache->c_items, ce_list)) - return NULL; - else - return nl_list_entry(obj->ce_list.next, - struct nl_object, ce_list); -} - -/** - * Return the previous element in the cache - * @arg obj current object - */ -struct nl_object *nl_cache_get_prev(struct nl_object *obj) -{ - if (nl_list_at_head(obj, &obj->ce_cache->c_items, ce_list)) - return NULL; - else - return nl_list_entry(obj->ce_list.prev, - struct nl_object, ce_list); -} -#endif - -/** @} */ - /** * @name Cache Creation/Deletion * @{ @@ -206,61 +91,6 @@ int nl_cache_alloc_and_fill(struct nl_cache_ops *ops, struct nl_sock *sock, return 0; } -#ifdef disabled -/** - * Allocate an empty cache based on type name - * @arg kind Name of cache type - * @return A newly allocated and initialized cache. - */ -int nl_cache_alloc_name(const char *kind, struct nl_cache **result) -{ - struct nl_cache_ops *ops; - struct nl_cache *cache; - - ops = nl_cache_ops_lookup(kind); - if (!ops) - return -NLE_NOCACHE; - - if (!(cache = nl_cache_alloc(ops))) - return -NLE_NOMEM; - - *result = cache; - return 0; -} - -/** - * Allocate a new cache containing a subset of a cache - * @arg orig Original cache to be based on - * @arg filter Filter defining the subset to be filled into new cache - * @return A newly allocated cache or NULL. - */ -struct nl_cache *nl_cache_subset(struct nl_cache *orig, - struct nl_object *filter) -{ - struct nl_cache *cache; - struct nl_object_ops *ops; - struct nl_object *obj; - - if (!filter) - BUG(); - - cache = nl_cache_alloc(orig->c_ops); - if (!cache) - return NULL; - - ops = orig->c_ops->co_obj_ops; - - nl_list_for_each_entry(obj, &orig->c_items, ce_list) { - if (!nl_object_match_filter(obj, filter)) - continue; - - nl_cache_add(cache, obj); - } - - return cache; -} -#endif - /** * Clear a cache. * @arg cache cache to clear @@ -344,35 +174,6 @@ int nl_cache_add(struct nl_cache *cache, struct nl_object *obj) return __cache_add(cache, new); } -#ifdef disabled -/** - * Move object from one cache to another - * @arg cache Cache to move object to. - * @arg obj Object subject to be moved - * - * Removes the given object from its associated cache if needed - * and adds it to the new cache. - * - * @return 0 on success or a negative error code. - */ -int nl_cache_move(struct nl_cache *cache, struct nl_object *obj) -{ - if (cache->c_ops->co_obj_ops != obj->ce_ops) - return -NLE_OBJ_MISMATCH; - - NL_DBG(3, "Moving object %p to cache %p\n", obj, cache); - - /* Acquire reference, if already in a cache this will be - * reverted during removal */ - nl_object_get(obj); - - if (!nl_list_empty(&obj->ce_list)) - nl_cache_remove(obj); - - return __cache_add(cache, obj); -} -#endif - /** * Removes an object from a cache. * @arg obj Object to remove from its cache @@ -397,34 +198,6 @@ void nl_cache_remove(struct nl_object *obj) obj, cache, nl_cache_name(cache)); } -#ifdef disabled -/** - * Search for an object in a cache - * @arg cache Cache to search in. - * @arg needle Object to look for. - * - * Iterates over the cache and looks for an object with identical - * identifiers as the needle. - * - * @return Reference to object or NULL if not found. - * @note The returned object must be returned via nl_object_put(). - */ -struct nl_object *nl_cache_search(struct nl_cache *cache, - struct nl_object *needle) -{ - struct nl_object *obj; - - nl_list_for_each_entry(obj, &cache->c_items, ce_list) { - if (nl_object_identical(obj, needle)) { - nl_object_get(obj); - return obj; - } - } - - return NULL; -} -#endif - /** @} */ /** @@ -523,107 +296,6 @@ int nl_cache_pickup(struct nl_sock *sk, struct nl_cache *cache) return __cache_pickup(sk, cache, &p); } -#ifdef disabled -static int cache_include(struct nl_cache *cache, struct nl_object *obj, - struct nl_msgtype *type, change_func_t cb) -{ - struct nl_object *old; - - switch (type->mt_act) { - case NL_ACT_NEW: - case NL_ACT_DEL: - old = nl_cache_search(cache, obj); - if (old) { - nl_cache_remove(old); - if (type->mt_act == NL_ACT_DEL) { - if (cb) - cb(cache, old, NL_ACT_DEL); - nl_object_put(old); - } - } - - if (type->mt_act == NL_ACT_NEW) { - nl_cache_move(cache, obj); - if (old == NULL && cb) - cb(cache, obj, NL_ACT_NEW); - else if (old) { - if (nl_object_diff(old, obj) && cb) - cb(cache, obj, NL_ACT_CHANGE); - - nl_object_put(old); - } - } - break; - default: - NL_DBG(2, "Unknown action associated to object %p\n", obj); - return 0; - } - - return 0; -} - -int nl_cache_include(struct nl_cache *cache, struct nl_object *obj, - change_func_t change_cb) -{ - struct nl_cache_ops *ops = cache->c_ops; - int i; - - if (ops->co_obj_ops != obj->ce_ops) - return -NLE_OBJ_MISMATCH; - - for (i = 0; ops->co_msgtypes[i].mt_id >= 0; i++) - if (ops->co_msgtypes[i].mt_id == obj->ce_msgtype) - return cache_include(cache, obj, &ops->co_msgtypes[i], - change_cb); - - return -NLE_MSGTYPE_NOSUPPORT; -} - -static int resync_cb(struct nl_object *c, struct nl_parser_param *p) -{ - struct nl_cache_assoc *ca = p->pp_arg; - - return nl_cache_include(ca->ca_cache, c, ca->ca_change); -} - -int nl_cache_resync(struct nl_sock *sk, struct nl_cache *cache, - change_func_t change_cb) -{ - struct nl_object *obj, *next; - struct nl_cache_assoc ca = { - .ca_cache = cache, - .ca_change = change_cb, - }; - struct nl_parser_param p = { - .pp_cb = resync_cb, - .pp_arg = &ca, - }; - int err; - - NL_DBG(1, "Resyncing cache %p <%s>...\n", cache, nl_cache_name(cache)); - - /* Mark all objects so we can see if some of them are obsolete */ - nl_cache_mark_all(cache); - - err = nl_cache_request_full_dump(sk, cache); - if (err < 0) - goto errout; - - err = __cache_pickup(sk, cache, &p); - if (err < 0) - goto errout; - - nl_list_for_each_entry_safe(obj, next, &cache->c_items, ce_list) - if (nl_object_is_marked(obj)) - nl_cache_remove(obj); - - NL_DBG(1, "Finished resyncing %p <%s>\n", cache, nl_cache_name(cache)); - - err = 0; -errout: - return err; -} -#endif /** @} */ @@ -702,138 +374,3 @@ int nl_cache_refill(struct nl_sock *sk, struct nl_cache *cache) } /** @} */ -#ifdef disabled - -/** - * @name Utillities - * @{ - */ - -/** - * Mark all objects in a cache - * @arg cache Cache to mark all objects in - */ -void nl_cache_mark_all(struct nl_cache *cache) -{ - struct nl_object *obj; - - NL_DBG(2, "Marking all objects in cache %p <%s>...\n", - cache, nl_cache_name(cache)); - - nl_list_for_each_entry(obj, &cache->c_items, ce_list) - nl_object_mark(obj); -} - -/** @} */ - -/** - * @name Dumping - * @{ - */ -/** - * Dump all elements of a cache. - * @arg cache cache to dump - * @arg params dumping parameters - * - * Dumps all elements of the \a cache to the file descriptor \a fd. - */ -void nl_cache_dump(struct nl_cache *cache, struct nl_dump_params *params) -{ - nl_cache_dump_filter(cache, params, NULL); -} - -/** - * Dump all elements of a cache (filtered). - * @arg cache cache to dump - * @arg params dumping parameters (optional) - * @arg filter filter object - * - * Dumps all elements of the \a cache to the file descriptor \a fd - * given they match the given filter \a filter. - */ -void nl_cache_dump_filter(struct nl_cache *cache, - struct nl_dump_params *params, - struct nl_object *filter) -{ - int type = params ? params->dp_type : NL_DUMP_DETAILS; - struct nl_object_ops *ops; - struct nl_object *obj; - - NL_DBG(2, "Dumping cache %p <%s> filter %p\n", - cache, nl_cache_name(cache), filter); - - if (type > NL_DUMP_MAX || type < 0) - BUG(); - - if (cache->c_ops == NULL) - BUG(); - - ops = cache->c_ops->co_obj_ops; - if (!ops->oo_dump[type]) - return; - - nl_list_for_each_entry(obj, &cache->c_items, ce_list) { - if (filter && !nl_object_match_filter(obj, filter)) - continue; - - NL_DBG(4, "Dumping object %p...\n", obj); - dump_from_ops(obj, params); - } -} - -/** @} */ - -/** - * @name Iterators - * @{ - */ - -/** - * Call a callback on each element of the cache. - * @arg cache cache to iterate on - * @arg cb callback function - * @arg arg argument passed to callback function - * - * Calls a callback function \a cb on each element of the \a cache. - * The argument \a arg is passed on the callback function. - */ -void nl_cache_foreach(struct nl_cache *cache, - void (*cb)(struct nl_object *, void *), void *arg) -{ - nl_cache_foreach_filter(cache, NULL, cb, arg); -} - -/** - * Call a callback on each element of the cache (filtered). - * @arg cache cache to iterate on - * @arg filter filter object - * @arg cb callback function - * @arg arg argument passed to callback function - * - * Calls a callback function \a cb on each element of the \a cache - * that matches the \a filter. The argument \a arg is passed on - * to the callback function. - */ -void nl_cache_foreach_filter(struct nl_cache *cache, struct nl_object *filter, - void (*cb)(struct nl_object *, void *), void *arg) -{ - struct nl_object *obj, *tmp; - struct nl_object_ops *ops; - - if (cache->c_ops == NULL) - BUG(); - - ops = cache->c_ops->co_obj_ops; - - nl_list_for_each_entry_safe(obj, tmp, &cache->c_items, ce_list) { - if (filter && !nl_object_match_filter(obj, filter)) - continue; - - cb(obj, arg); - } -} - -/** @} */ -#endif - -/** @} */ diff --git a/src/cache_mngt.c b/src/cache_mngt.c index 5c32d2a..8adbe51 100644 --- a/src/cache_mngt.c +++ b/src/cache_mngt.c @@ -73,55 +73,6 @@ struct nl_cache_ops *nl_cache_ops_associate(int protocol, int msgtype) return NULL; } -#ifdef disabled - -/** - * Lookup message type cache association - * @arg ops cache operations - * @arg msgtype netlink message type - * - * Searches for a matching message type association ing the specified - * cache operations. - * - * @return A message type association or NULL. - */ -struct nl_msgtype *nl_msgtype_lookup(struct nl_cache_ops *ops, int msgtype) -{ - int i; - - for (i = 0; ops->co_msgtypes[i].mt_id >= 0; i++) - if (ops->co_msgtypes[i].mt_id == msgtype) - return &ops->co_msgtypes[i]; - - return NULL; -} - -static struct nl_cache_ops *cache_ops_lookup_for_obj(struct nl_object_ops *obj_ops) -{ - struct nl_cache_ops *ops; - - for (ops = cache_ops; ops; ops = ops->co_next) - if (ops->co_obj_ops == obj_ops) - return ops; - - return NULL; - -} - -/** - * Call a function for each registered cache operation - * @arg cb Callback function to be called - * @arg arg User specific argument. - */ -void nl_cache_ops_foreach(void (*cb)(struct nl_cache_ops *, void *), void *arg) -{ - struct nl_cache_ops *ops; - - for (ops = cache_ops; ops; ops = ops->co_next) - cb(ops, arg); -} -#endif - /** * Register a set of cache operations * @arg ops cache operations @@ -177,77 +128,4 @@ int nl_cache_mngt_unregister(struct nl_cache_ops *ops) /** @} */ -/** - * @name Global Cache Provisioning/Requiring - * @{ - */ -#ifdef disabled -/** - * Provide a cache for global use - * @arg cache cache to provide - * - * Offers the specified cache to be used by other modules. - * Only one cache per type may be shared at a time, - * a previsouly provided caches will be overwritten. - */ -void nl_cache_mngt_provide(struct nl_cache *cache) -{ - struct nl_cache_ops *ops; - - ops = cache_ops_lookup_for_obj(cache->c_ops->co_obj_ops); - if (!ops) - BUG(); - else - ops->co_major_cache = cache; -} - -/** - * Unprovide a cache for global use - * @arg cache cache to unprovide - * - * Cancels the offer to use a cache globally. The - * cache will no longer be returned via lookups but - * may still be in use. - */ -void nl_cache_mngt_unprovide(struct nl_cache *cache) -{ - struct nl_cache_ops *ops; - - ops = cache_ops_lookup_for_obj(cache->c_ops->co_obj_ops); - if (!ops) - BUG(); - else if (ops->co_major_cache == cache) - ops->co_major_cache = NULL; -} - -/** - * Demand the use of a global cache - * @arg name name of the required object type - * - * Trys to find a cache of the specified type for global - * use. - * - * @return A cache provided by another subsystem of the - * specified type marked to be available. - */ -struct nl_cache *nl_cache_mngt_require(const char *name) -{ - struct nl_cache_ops *ops; - - ops = nl_cache_ops_lookup(name); - if (!ops || !ops->co_major_cache) { - fprintf(stderr, "Application BUG: Your application must " - "call nl_cache_mngt_provide() and\nprovide a valid " - "%s cache to be used for internal lookups.\nSee the " - " API documentation for more details.\n", name); - - return NULL; - } - - return ops->co_major_cache; -} - -#endif -/** @} */ - /** @} */ diff --git a/src/genl_mngt.c b/src/genl_mngt.c index 6c65179..246521f 100644 --- a/src/genl_mngt.c +++ b/src/genl_mngt.c @@ -136,31 +136,6 @@ errout: } -#ifdef disabled -char *genl_op2name(int family, int op, char *buf, size_t len) -{ - struct genl_ops *ops; - int i; - - nl_list_for_each_entry(ops, &genl_ops_list, o_list) { - if (ops->o_family == family) { - for (i = 0; i < ops->o_ncmds; i++) { - struct genl_cmd *cmd; - cmd = &ops->o_cmds[i]; - - if (cmd->c_id == op) { - strncpy(buf, cmd->c_name, len - 1); - return buf; - } - } - } - } - - strncpy(buf, "unknown", len - 1); - return NULL; -} -#endif - /** * @name Register/Unregister * @{ @@ -215,60 +190,4 @@ void genl_unregister(struct nl_cache_ops *ops) /** @} */ -/** - * @name Resolving ID/Name - * @{ - */ -#ifdef disabled -static int __genl_ops_resolve(struct nl_cache *ctrl, struct genl_ops *ops) -{ - struct genl_family *family; - - family = genl_ctrl_search_by_name(ctrl, ops->o_name); - if (family != NULL) { - ops->o_id = genl_family_get_id(family); - genl_family_put(family); - - return 0; - } - - return -NLE_OBJ_NOTFOUND; -} - -int genl_ops_resolve(struct nl_sock *sk, struct genl_ops *ops) -{ - struct nl_cache *ctrl; - int err; - - if ((err = genl_ctrl_alloc_cache(sk, &ctrl)) < 0) - goto errout; - - err = __genl_ops_resolve(ctrl, ops); - - nl_cache_free(ctrl); -errout: - return err; -} - -int genl_mngt_resolve(struct nl_sock *sk) -{ - struct nl_cache *ctrl; - struct genl_ops *ops; - int err = 0; - - if ((err = genl_ctrl_alloc_cache(sk, &ctrl)) < 0) - goto errout; - - nl_list_for_each_entry(ops, &genl_ops_list, o_list) { - err = __genl_ops_resolve(ctrl, ops); - } - - nl_cache_free(ctrl); -errout: - return err; -} -#endif -/** @} */ - - /** @} */ diff --git a/src/object.c b/src/object.c index f915551..384bacd 100644 --- a/src/object.c +++ b/src/object.c @@ -62,27 +62,6 @@ struct nl_object *nl_object_alloc(struct nl_object_ops *ops) return new; } -#ifdef disabled -/** - * Allocate a new object of kind specified by the name - * @arg kind name of object type - * @return The new object or nULL - */ -int nl_object_alloc_name(const char *kind, struct nl_object **result) -{ - struct nl_cache_ops *ops; - - ops = nl_cache_ops_lookup(kind); - if (!ops) - return -NLE_OPNOTSUPP; - - if (!(*result = nl_object_alloc(ops->co_obj_ops))) - return -NLE_NOMEM; - - return 0; -} -#endif - struct nl_derived_object { NLHDR_COMMON char data; @@ -163,117 +142,6 @@ void nl_object_free(struct nl_object *obj) * @{ */ -#ifdef disabled -/** - * Dump this object according to the specified parameters - * @arg obj object to dump - * @arg params dumping parameters - */ -void nl_object_dump(struct nl_object *obj, struct nl_dump_params *params) -{ - dump_from_ops(obj, params); -} - -/** - * Check if the identifiers of two objects are identical - * @arg a an object - * @arg b another object of same type - * - * @return true if both objects have equal identifiers, otherwise false. - */ -int nl_object_identical(struct nl_object *a, struct nl_object *b) -{ - struct nl_object_ops *ops = obj_ops(a); - int req_attrs; - - /* Both objects must be of same type */ - if (ops != obj_ops(b)) - return 0; - - req_attrs = ops->oo_id_attrs; - - /* Both objects must provide all required attributes to uniquely - * identify an object */ - if ((a->ce_mask & req_attrs) != req_attrs || - (b->ce_mask & req_attrs) != req_attrs) - return 0; - - /* Can't judge unless we can compare */ - if (ops->oo_compare == NULL) - return 0; - - return !(ops->oo_compare(a, b, req_attrs, 0)); -} - -/** - * Compute bitmask representing difference in attribute values - * @arg a an object - * @arg b another object of same type - * - * The bitmask returned is specific to an object type, each bit set represents - * an attribute which mismatches in either of the two objects. Unavailability - * of an attribute in one object and presence in the other is regarded a - * mismatch as well. - * - * @return Bitmask describing differences or 0 if they are completely identical. - */ -uint32_t nl_object_diff(struct nl_object *a, struct nl_object *b) -{ - struct nl_object_ops *ops = obj_ops(a); - - if (ops != obj_ops(b) || ops->oo_compare == NULL) - return UINT_MAX; - - return ops->oo_compare(a, b, ~0, 0); -} - -/** - * Match a filter against an object - * @arg obj object to check - * @arg filter object of same type acting as filter - * - * @return 1 if the object matches the filter or 0 - * if no filter procedure is available or if the - * filter does not match. - */ -int nl_object_match_filter(struct nl_object *obj, struct nl_object *filter) -{ - struct nl_object_ops *ops = obj_ops(obj); - - if (ops != obj_ops(filter) || ops->oo_compare == NULL) - return 0; - - return !(ops->oo_compare(obj, filter, filter->ce_mask, - LOOSE_COMPARISON)); -} - -/** - * Convert bitmask of attributes to a character string - * @arg obj object of same type as attribute bitmask - * @arg attrs bitmask of attribute types - * @arg buf destination buffer - * @arg len length of destination buffer - * - * Converts the bitmask of attribute types into a list of attribute - * names separated by comas. - * - * @return destination buffer. - */ -char *nl_object_attrs2str(struct nl_object *obj, uint32_t attrs, - char *buf, size_t len) -{ - struct nl_object_ops *ops = obj_ops(obj); - - if (ops->oo_attrs2str != NULL) - return ops->oo_attrs2str(attrs, buf, len); - else { - memset(buf, 0, len); - return buf; - } -} - -#endif - /** @} */ /** @} */ diff --git a/src/unl.c b/src/unl.c index b38dab8..33c020e 100644 --- a/src/unl.c +++ b/src/unl.c @@ -109,13 +109,10 @@ out: int unl_genl_request(struct unl *unl, struct nl_msg *msg, unl_cb handler, void *arg) { - struct nlmsghdr *nlh; struct nl_cb *cb; int err; cb = nl_cb_alloc(NL_CB_CUSTOM); - nlh = nlmsg_hdr(msg); - err = nl_send_auto_complete(unl->sock, msg); if (err < 0) goto out; -- 2.30.2