15#include "nl-default.h"
17#include <netlink/netlink.h>
18#include <netlink/genl/genl.h>
19#include <netlink/genl/family.h>
20#include <netlink/utils.h>
23#include "nl-priv-dynamic-core/object-api.h"
24#include "nl-priv-dynamic-core/nl-core.h"
35#define FAMILY_ATTR_ID 0x01
36#define FAMILY_ATTR_NAME 0x02
37#define FAMILY_ATTR_VERSION 0x04
38#define FAMILY_ATTR_HDRSIZE 0x08
39#define FAMILY_ATTR_MAXATTR 0x10
40#define FAMILY_ATTR_OPS 0x20
42struct nl_object_ops genl_family_ops;
44static void family_constructor(
struct nl_object *c)
48 nl_init_list_head(&family->gf_ops);
49 nl_init_list_head(&family->gf_mc_grps);
52static void family_free_data(
struct nl_object *c)
55 struct genl_family_op *ops, *tmp;
61 nl_list_for_each_entry_safe(ops, tmp, &family->gf_ops, o_list) {
62 nl_list_del(&ops->o_list);
66 nl_list_for_each_entry_safe(grp, t_grp, &family->gf_mc_grps, list) {
67 nl_list_del(&grp->list);
73static int family_clone(
struct nl_object *_dst,
struct nl_object *_src)
77 struct genl_family_op *ops;
81 nl_init_list_head(&dst->gf_ops);
82 nl_init_list_head(&dst->gf_mc_grps);
84 nl_list_for_each_entry(ops, &src->gf_ops, o_list) {
85 err = genl_family_add_op(dst, ops->o_id, ops->o_flags);
90 nl_list_for_each_entry(grp, &src->gf_mc_grps, list) {
91 err = genl_family_add_grp(dst, grp->id, grp->name);
100static void family_dump_line(
struct nl_object *obj,
struct nl_dump_params *p)
104 nl_dump(p,
"0x%04x %s version %u\n",
105 family->gf_id, family->gf_name, family->gf_version);
108static const struct trans_tbl ops_flags[] = {
109 __ADD(GENL_ADMIN_PERM, admin_perm),
110 __ADD(GENL_CMD_CAP_DO, has_doit),
111 __ADD(GENL_CMD_CAP_DUMP, has_dump),
112 __ADD(GENL_CMD_CAP_HASPOL, has_policy),
115static char *ops_flags2str(
int flags,
char *buf,
size_t len)
117 return __flags2str(flags, buf, len, ops_flags, ARRAY_SIZE(ops_flags));
120static void family_dump_details(
struct nl_object *obj,
struct nl_dump_params *p)
125 family_dump_line(obj, p);
126 nl_dump_line(p,
" hdrsize %u maxattr %u\n",
127 family->gf_hdrsize, family->gf_maxattr);
129 if (family->ce_mask & FAMILY_ATTR_OPS) {
130 struct genl_family_op *op;
133 nl_list_for_each_entry(op, &family->gf_ops, o_list) {
134 ops_flags2str(op->o_flags, buf,
sizeof(buf));
136 genl_op2name(family->gf_id, op->o_id, buf,
sizeof(buf));
138 nl_dump_line(p,
" op %s (0x%02x)", buf, op->o_id);
142 ops_flags2str(op->o_flags, buf,
149 nl_list_for_each_entry(grp, &family->gf_mc_grps, list) {
150 nl_dump_line(p,
" grp %s (0x%02x)\n", grp->name, grp->id);
155static void family_dump_stats(
struct nl_object *obj,
struct nl_dump_params *p)
157 family_dump_details(obj, p);
160static uint64_t family_compare(
struct nl_object *_a,
struct nl_object *_b,
161 uint64_t attrs,
int flags)
167#define _DIFF(ATTR, EXPR) ATTR_DIFF(attrs, ATTR, a, b, EXPR)
168 diff |= _DIFF(FAMILY_ATTR_ID, a->gf_id != b->gf_id);
169 diff |= _DIFF(FAMILY_ATTR_VERSION, a->gf_version != b->gf_version);
170 diff |= _DIFF(FAMILY_ATTR_HDRSIZE, a->gf_hdrsize != b->gf_hdrsize);
171 diff |= _DIFF(FAMILY_ATTR_MAXATTR, a->gf_maxattr != b->gf_maxattr);
172 diff |= _DIFF(FAMILY_ATTR_NAME, strcmp(a->gf_name, b->gf_name));
223 if (family->ce_mask & FAMILY_ATTR_ID)
224 return family->gf_id;
237 family->ce_mask |= FAMILY_ATTR_ID;
255 if (family->ce_mask & FAMILY_ATTR_NAME)
256 return family->gf_name;
268 _nl_strncpy_trunc(family->gf_name, name, GENL_NAMSIZ);
269 family->ce_mask |= FAMILY_ATTR_NAME;
285 if (family->ce_mask & FAMILY_ATTR_VERSION)
286 return family->gf_version;
298 family->gf_version = version;
299 family->ce_mask |= FAMILY_ATTR_VERSION;
317 if (family->ce_mask & FAMILY_ATTR_HDRSIZE)
318 return family->gf_hdrsize;
323void genl_family_set_hdrsize(
struct genl_family *family, uint32_t hdrsize)
325 family->gf_hdrsize = hdrsize;
326 family->ce_mask |= FAMILY_ATTR_HDRSIZE;
336uint32_t genl_family_get_maxattr(
struct genl_family *family)
338 if (family->ce_mask & FAMILY_ATTR_MAXATTR)
339 return family->gf_maxattr;
344void genl_family_set_maxattr(
struct genl_family *family, uint32_t maxattr)
346 family->gf_maxattr = maxattr;
347 family->ce_mask |= FAMILY_ATTR_MAXATTR;
357int genl_family_add_op(
struct genl_family *family,
int id,
int flags)
359 struct genl_family_op *op;
361 op = calloc(1,
sizeof(*op));
368 nl_list_add_tail(&op->o_list, &family->gf_ops);
369 family->ce_mask |= FAMILY_ATTR_OPS;
374int genl_family_add_grp(
struct genl_family *family, uint32_t
id,
380 || strlen (name) >= GENL_NAMSIZ)
383 grp = calloc(1,
sizeof(*grp));
388 _nl_strncpy_assert(grp->name, name, GENL_NAMSIZ);
390 nl_list_add_tail(&grp->list, &family->gf_mc_grps);
398struct nl_object_ops genl_family_ops = {
399 .oo_name =
"genl/family",
401 .oo_constructor = family_constructor,
402 .oo_free_data = family_free_data,
403 .oo_clone = family_clone,
409 .oo_compare = family_compare,
410 .oo_id_attrs = FAMILY_ATTR_ID,
void genl_family_set_name(struct genl_family *family, const char *name)
Set human readable name.
void genl_family_set_version(struct genl_family *family, uint8_t version)
Set interface version.
struct genl_family * genl_family_alloc(void)
Allocate new Generic Netlink family object.
void genl_family_put(struct genl_family *family)
Release reference on Generic Netlink family object.
uint8_t genl_family_get_version(struct genl_family *family)
Return interface version.
char * genl_family_get_name(struct genl_family *family)
Return human readable name.
unsigned int genl_family_get_id(struct genl_family *family)
Return numeric identifier.
uint32_t genl_family_get_hdrsize(struct genl_family *family)
Return user header size expected by kernel component.
void genl_family_set_id(struct genl_family *family, unsigned int id)
Set the numeric identifier.
void nl_object_put(struct nl_object *obj)
Release a reference from an object.
struct nl_object * nl_object_alloc(struct nl_object_ops *ops)
Allocate a new object of kind specified by the operations handle.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
@ NL_DUMP_STATS
Dump all attributes including statistics.
@ NL_DUMP_LINE
Dump object briefly on one line.
@ NL_DUMP_DETAILS
Dump all attributes but no statistics.