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- /*
- * lib/genl/family.c Generic Netlink Family
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation version 2.1
- * of the License.
- *
- * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
- */
- /**
- * @ingroup genl
- * @defgroup genl_family Generic Netlink Family
- * @brief
- *
- * @{
- */
- #include <netlink-generic.h>
- #include <netlink/netlink.h>
- #include <netlink/genl/genl.h>
- #include <netlink/genl/family.h>
- #include <netlink/utils.h>
- struct nl_object_ops genl_family_ops;
- /** @endcond */
- static void family_constructor(struct nl_object *c)
- {
- struct genl_family *family = (struct genl_family *) c;
- nl_init_list_head(&family->gf_ops);
- nl_init_list_head(&family->gf_mc_grps);
- }
- static void family_free_data(struct nl_object *c)
- {
- struct genl_family *family = (struct genl_family *) c;
- struct genl_family_op *ops, *tmp;
- struct genl_family_grp *grp, *t_grp;
- if (family == NULL)
- return;
- nl_list_for_each_entry_safe(ops, tmp, &family->gf_ops, o_list) {
- nl_list_del(&ops->o_list);
- free(ops);
- }
- nl_list_for_each_entry_safe(grp, t_grp, &family->gf_mc_grps, list) {
- nl_list_del(&grp->list);
- free(grp);
- }
- }
- static int family_clone(struct nl_object *_dst, struct nl_object *_src)
- {
- struct genl_family *dst = nl_object_priv(_dst);
- struct genl_family *src = nl_object_priv(_src);
- struct genl_family_op *ops;
- struct genl_family_grp *grp;
- int err;
- nl_list_for_each_entry(ops, &src->gf_ops, o_list) {
- err = genl_family_add_op(dst, ops->o_id, ops->o_flags);
- if (err < 0)
- return err;
- }
- nl_list_for_each_entry(grp, &src->gf_mc_grps, list) {
- err = genl_family_add_grp(dst, grp->id, grp->name);
- if (err < 0)
- return err;
- }
-
- return 0;
- }
- static int family_compare(struct nl_object *_a, struct nl_object *_b,
- uint32_t attrs, int flags)
- {
- struct genl_family *a = (struct genl_family *) _a;
- struct genl_family *b = (struct genl_family *) _b;
- int diff = 0;
- #define FAM_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, FAMILY_ATTR_##ATTR, a, b, EXPR)
- diff |= FAM_DIFF(ID, a->gf_id != b->gf_id);
- diff |= FAM_DIFF(VERSION, a->gf_version != b->gf_version);
- diff |= FAM_DIFF(HDRSIZE, a->gf_hdrsize != b->gf_hdrsize);
- diff |= FAM_DIFF(MAXATTR, a->gf_maxattr != b->gf_maxattr);
- diff |= FAM_DIFF(NAME, strcmp(a->gf_name, b->gf_name));
- #undef FAM_DIFF
- return diff;
- }
- /**
- * @name Family Object
- * @{
- */
- struct genl_family *genl_family_alloc(void)
- {
- return (struct genl_family *) nl_object_alloc(&genl_family_ops);
- }
- void genl_family_put(struct genl_family *family)
- {
- nl_object_put((struct nl_object *) family);
- }
- /** @} */
- int genl_family_add_op(struct genl_family *family, int id, int flags)
- {
- struct genl_family_op *op;
- op = calloc(1, sizeof(*op));
- if (op == NULL)
- return -NLE_NOMEM;
- op->o_id = id;
- op->o_flags = flags;
- nl_list_add_tail(&op->o_list, &family->gf_ops);
- family->ce_mask |= FAMILY_ATTR_OPS;
- return 0;
- }
- int genl_family_add_grp(struct genl_family *family, uint32_t id,
- const char *name)
- {
- struct genl_family_grp *grp;
- grp = calloc(1, sizeof(*grp));
- if (grp == NULL)
- return -NLE_NOMEM;
- grp->id = id;
- strncpy(grp->name, name, GENL_NAMSIZ - 1);
- grp->name[GENL_NAMSIZ - 1] = '\0';
- nl_list_add_tail(&grp->list, &family->gf_mc_grps);
- return 0;
- }
- /** @} */
- /** @cond SKIP */
- struct nl_object_ops genl_family_ops = {
- .oo_name = "genl/family",
- .oo_size = sizeof(struct genl_family),
- .oo_constructor = family_constructor,
- .oo_free_data = family_free_data,
- .oo_clone = family_clone,
- .oo_compare = family_compare,
- .oo_id_attrs = FAMILY_ATTR_ID,
- };
- /** @endcond */
- /** @} */
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