1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/*
* 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);
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 */
/** @} */
|
