22 #include <netlink-private/genl.h> 23 #include <netlink/netlink.h> 24 #include <netlink/genl/genl.h> 25 #include <netlink/genl/family.h> 26 #include <netlink/utils.h> 28 #include "netlink-private/utils.h" 31 #define FAMILY_ATTR_ID 0x01 32 #define FAMILY_ATTR_NAME 0x02 33 #define FAMILY_ATTR_VERSION 0x04 34 #define FAMILY_ATTR_HDRSIZE 0x08 35 #define FAMILY_ATTR_MAXATTR 0x10 36 #define FAMILY_ATTR_OPS 0x20 38 struct nl_object_ops genl_family_ops;
40 static void family_constructor(
struct nl_object *c)
42 struct genl_family *family = (
struct genl_family *) c;
44 nl_init_list_head(&family->gf_ops);
45 nl_init_list_head(&family->gf_mc_grps);
48 static void family_free_data(
struct nl_object *c)
50 struct genl_family *family = (
struct genl_family *) c;
51 struct genl_family_op *ops, *tmp;
52 struct genl_family_grp *grp, *t_grp;
57 nl_list_for_each_entry_safe(ops, tmp, &family->gf_ops, o_list) {
58 nl_list_del(&ops->o_list);
62 nl_list_for_each_entry_safe(grp, t_grp, &family->gf_mc_grps, list) {
63 nl_list_del(&grp->list);
69 static int family_clone(
struct nl_object *_dst,
struct nl_object *_src)
71 struct genl_family *dst = nl_object_priv(_dst);
72 struct genl_family *src = nl_object_priv(_src);
73 struct genl_family_op *ops;
74 struct genl_family_grp *grp;
77 nl_list_for_each_entry(ops, &src->gf_ops, o_list) {
78 err = genl_family_add_op(dst, ops->o_id, ops->o_flags);
83 nl_list_for_each_entry(grp, &src->gf_mc_grps, list) {
84 err = genl_family_add_grp(dst, grp->id, grp->name);
93 static void family_dump_line(
struct nl_object *obj,
struct nl_dump_params *p)
95 struct genl_family *family = (
struct genl_family *) obj;
97 nl_dump(p,
"0x%04x %s version %u\n",
98 family->gf_id, family->gf_name, family->gf_version);
101 static const struct trans_tbl ops_flags[] = {
102 __ADD(GENL_ADMIN_PERM, admin_perm),
103 __ADD(GENL_CMD_CAP_DO, has_doit),
104 __ADD(GENL_CMD_CAP_DUMP, has_dump),
105 __ADD(GENL_CMD_CAP_HASPOL, has_policy),
108 static char *ops_flags2str(
int flags,
char *buf,
size_t len)
110 return __flags2str(flags, buf, len, ops_flags, ARRAY_SIZE(ops_flags));
113 static void family_dump_details(
struct nl_object *obj,
struct nl_dump_params *p)
115 struct genl_family_grp *grp;
116 struct genl_family *family = (
struct genl_family *) obj;
118 family_dump_line(obj, p);
119 nl_dump_line(p,
" hdrsize %u maxattr %u\n",
120 family->gf_hdrsize, family->gf_maxattr);
122 if (family->ce_mask & FAMILY_ATTR_OPS) {
123 struct genl_family_op *op;
126 nl_list_for_each_entry(op, &family->gf_ops, o_list) {
127 ops_flags2str(op->o_flags, buf,
sizeof(buf));
129 genl_op2name(family->gf_id, op->o_id, buf,
sizeof(buf));
131 nl_dump_line(p,
" op %s (0x%02x)", buf, op->o_id);
135 ops_flags2str(op->o_flags, buf,
142 nl_list_for_each_entry(grp, &family->gf_mc_grps, list) {
143 nl_dump_line(p,
" grp %s (0x%02x)\n", grp->name, grp->id);
148 static void family_dump_stats(
struct nl_object *obj,
struct nl_dump_params *p)
150 family_dump_details(obj, p);
153 static uint64_t family_compare(
struct nl_object *_a,
struct nl_object *_b,
154 uint64_t attrs,
int flags)
156 struct genl_family *a = (
struct genl_family *) _a;
157 struct genl_family *b = (
struct genl_family *) _b;
160 #define FAM_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, FAMILY_ATTR_##ATTR, a, b, EXPR) 162 diff |= FAM_DIFF(ID, a->gf_id != b->gf_id);
163 diff |= FAM_DIFF(VERSION, a->gf_version != b->gf_version);
164 diff |= FAM_DIFF(HDRSIZE, a->gf_hdrsize != b->gf_hdrsize);
165 diff |= FAM_DIFF(MAXATTR, a->gf_maxattr != b->gf_maxattr);
166 diff |= FAM_DIFF(NAME, strcmp(a->gf_name, b->gf_name));
218 if (family->ce_mask & FAMILY_ATTR_ID)
219 return family->gf_id;
232 family->ce_mask |= FAMILY_ATTR_ID;
250 if (family->ce_mask & FAMILY_ATTR_NAME)
251 return family->gf_name;
263 strncpy(family->gf_name, name, GENL_NAMSIZ-1);
264 family->ce_mask |= FAMILY_ATTR_NAME;
280 if (family->ce_mask & FAMILY_ATTR_VERSION)
281 return family->gf_version;
293 family->gf_version = version;
294 family->ce_mask |= FAMILY_ATTR_VERSION;
312 if (family->ce_mask & FAMILY_ATTR_HDRSIZE)
313 return family->gf_hdrsize;
318 void genl_family_set_hdrsize(
struct genl_family *family, uint32_t hdrsize)
320 family->gf_hdrsize = hdrsize;
321 family->ce_mask |= FAMILY_ATTR_HDRSIZE;
331 uint32_t genl_family_get_maxattr(
struct genl_family *family)
333 if (family->ce_mask & FAMILY_ATTR_MAXATTR)
334 return family->gf_maxattr;
339 void genl_family_set_maxattr(
struct genl_family *family, uint32_t maxattr)
341 family->gf_maxattr = maxattr;
342 family->ce_mask |= FAMILY_ATTR_MAXATTR;
352 int genl_family_add_op(
struct genl_family *family,
int id,
int flags)
354 struct genl_family_op *op;
356 op = calloc(1,
sizeof(*op));
363 nl_list_add_tail(&op->o_list, &family->gf_ops);
364 family->ce_mask |= FAMILY_ATTR_OPS;
369 int genl_family_add_grp(
struct genl_family *family, uint32_t
id,
372 struct genl_family_grp *grp;
375 || strlen (name) >= GENL_NAMSIZ)
378 grp = calloc(1,
sizeof(*grp));
383 _nl_strncpy(grp->name, name, GENL_NAMSIZ);
385 nl_list_add_tail(&grp->list, &family->gf_mc_grps);
393 struct nl_object_ops genl_family_ops = {
394 .oo_name =
"genl/family",
395 .oo_size =
sizeof(
struct genl_family),
396 .oo_constructor = family_constructor,
397 .oo_free_data = family_free_data,
398 .oo_clone = family_clone,
404 .oo_compare = family_compare,
405 .oo_id_attrs = FAMILY_ATTR_ID,
Dump object briefly on one line.
struct nl_object * nl_object_alloc(struct nl_object_ops *ops)
Allocate a new object of kind specified by the operations handle.
void genl_family_set_version(struct genl_family *family, uint8_t version)
Set interface version.
void genl_family_set_name(struct genl_family *family, const char *name)
Set human readable name.
Dump all attributes but no statistics.
void genl_family_set_id(struct genl_family *family, unsigned int id)
Set the numeric identifier.
uint8_t genl_family_get_version(struct genl_family *family)
Return interface version.
struct genl_family * genl_family_alloc(void)
Allocate new Generic Netlink family object.
void nl_object_put(struct nl_object *obj)
Release a reference from an object.
char * genl_family_get_name(struct genl_family *family)
Return human readable name.
void genl_family_put(struct genl_family *family)
Release reference on Generic Netlink family object.
unsigned int genl_family_get_id(struct genl_family *family)
Return numeric identifier.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
Dump all attributes including statistics.
uint32_t genl_family_get_hdrsize(struct genl_family *family)
Return user header size expected by kernel component.