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