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VLAN: rtnl_link_is_vlan() function and API documentation

This commit is contained in:
Thomas Graf 2011-07-21 17:47:00 +02:00
parent 16d38a49d1
commit 8219cc79f8
3 changed files with 106 additions and 32 deletions
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1
doc/route.txt
View File

@ -432,6 +432,7 @@ if (rtnl_link_add(sk, link, NLM_F_CREATE) < 0)
rtnl_link_put(link);
-----
[[link_vlan]]
==== VLAN
[source,c]

6
include/netlink/route/link/vlan.h
View File

@ -27,17 +27,19 @@ struct vlan_map
#define VLAN_PRIO_MAX 7
extern int rtnl_link_is_vlan(struct rtnl_link *);
extern char * rtnl_link_vlan_flags2str(int, char *, size_t);
extern int rtnl_link_vlan_str2flags(const char *);
extern int rtnl_link_vlan_set_id(struct rtnl_link *, int);
extern int rtnl_link_vlan_set_id(struct rtnl_link *, uint16_t);
extern int rtnl_link_vlan_get_id(struct rtnl_link *);
extern int rtnl_link_vlan_set_flags(struct rtnl_link *,
unsigned int);
extern int rtnl_link_vlan_unset_flags(struct rtnl_link *,
unsigned int);
extern unsigned int rtnl_link_vlan_get_flags(struct rtnl_link *);
extern int rtnl_link_vlan_get_flags(struct rtnl_link *);
extern int rtnl_link_vlan_set_ingress_map(struct rtnl_link *,
int, uint32_t);

131
lib/route/link/vlan.c
View File

@ -12,7 +12,9 @@
/**
* @ingroup link
* @defgroup vlan VLAN
* @brief
* Virtual LAN link module
*
* See <a href="../route.html#link_vlan">VLAN API documentation</a> for more information
*
* @{
*/
@ -45,22 +47,9 @@ struct vlan_info
struct vlan_map * vi_egress_qos;
uint32_t vi_mask;
};
/** @endcond */
static const struct trans_tbl vlan_flags[] = {
__ADD(VLAN_FLAG_REORDER_HDR, reorder_hdr)
};
char *rtnl_link_vlan_flags2str(int flags, char *buf, size_t len)
{
return __flags2str(flags, buf, len, vlan_flags, ARRAY_SIZE(vlan_flags));
}
int rtnl_link_vlan_str2flags(const char *name)
{
return __str2flags(name, vlan_flags, ARRAY_SIZE(vlan_flags));
}
static struct nla_policy vlan_policy[IFLA_VLAN_MAX+1] = {
[IFLA_VLAN_ID] = { .type = NLA_U16 },
[IFLA_VLAN_FLAGS] = { .minlen = sizeof(struct ifla_vlan_flags) },
@ -241,7 +230,7 @@ static int vlan_clone(struct rtnl_link *dst, struct rtnl_link *src)
int err;
dst->l_info = NULL;
if ((err = rtnl_link_set_info_type(dst, "vlan")) < 0)
if ((err = rtnl_link_set_type(dst, "vlan")) < 0)
return err;
vdst = dst->l_info;
@ -334,12 +323,42 @@ static struct rtnl_link_info_ops vlan_info_ops = {
.io_free = vlan_free,
};
int rtnl_link_vlan_set_id(struct rtnl_link *link, int id)
/** @cond SKIP */
#define IS_VLAN_LINK_ASSERT(link) \
if ((link)->l_info_ops != &vlan_info_ops) { \
APPBUG("Link is not a vlan link. set type \"vlan\" first."); \
return -NLE_OPNOTSUPP; \
}
/** @endcond */
/**
* @name VLAN Object
* @{
*/
/**
* Check if link is a VLAN link
* @arg link Link object
*
* @return True if link is a VLAN link, otherwise false is returned.
*/
int rtnl_link_is_vlan(struct rtnl_link *link)
{
return link->l_info_ops && !strcmp(link->l_info_ops->io_name, "vlan");
}
/**
* Set VLAN ID
* @arg link Link object
* @arg id VLAN identifier
*
* @return 0 on success or a negative error code
*/
int rtnl_link_vlan_set_id(struct rtnl_link *link, uint16_t id)
{
struct vlan_info *vi = link->l_info;
if (link->l_info_ops != &vlan_info_ops || !link->l_info_ops)
return -NLE_OPNOTSUPP;
IS_VLAN_LINK_ASSERT(link);
vi->vi_vlan_id = id;
vi->vi_mask |= VLAN_HAS_ID;
@ -347,12 +366,17 @@ int rtnl_link_vlan_set_id(struct rtnl_link *link, int id)
return 0;
}
/**
* Get VLAN Id
* @arg link Link object
*
* @return VLAN id, 0 if not set or a negative error code.
*/
int rtnl_link_vlan_get_id(struct rtnl_link *link)
{
struct vlan_info *vi = link->l_info;
if (link->l_info_ops != &vlan_info_ops || !link->l_info_ops)
return -NLE_OPNOTSUPP;
IS_VLAN_LINK_ASSERT(link);
if (vi->vi_mask & VLAN_HAS_ID)
return vi->vi_vlan_id;
@ -360,12 +384,18 @@ int rtnl_link_vlan_get_id(struct rtnl_link *link)
return 0;
}
/**
* Set VLAN flags
* @arg link Link object
* @arg flags VLAN flags
*
* @return 0 on success or a negative error code.
*/
int rtnl_link_vlan_set_flags(struct rtnl_link *link, unsigned int flags)
{
struct vlan_info *vi = link->l_info;
if (link->l_info_ops != &vlan_info_ops || !link->l_info_ops)
return -NLE_OPNOTSUPP;
IS_VLAN_LINK_ASSERT(link);
vi->vi_flags_mask |= flags;
vi->vi_flags |= flags;
@ -374,12 +404,18 @@ int rtnl_link_vlan_set_flags(struct rtnl_link *link, unsigned int flags)
return 0;
}
/**
* Unset VLAN flags
* @arg link Link object
* @arg flags VLAN flags
*
* @return 0 on success or a negative error code.
*/
int rtnl_link_vlan_unset_flags(struct rtnl_link *link, unsigned int flags)
{
struct vlan_info *vi = link->l_info;
if (link->l_info_ops != &vlan_info_ops || !link->l_info_ops)
return -NLE_OPNOTSUPP;
IS_VLAN_LINK_ASSERT(link);
vi->vi_flags_mask |= flags;
vi->vi_flags &= ~flags;
@ -388,23 +424,34 @@ int rtnl_link_vlan_unset_flags(struct rtnl_link *link, unsigned int flags)
return 0;
}
unsigned int rtnl_link_vlan_get_flags(struct rtnl_link *link)
/**
* Get VLAN flags
* @arg link Link object
*
* @return VLAN flags, 0 if none set, or a negative error code.
*/
int rtnl_link_vlan_get_flags(struct rtnl_link *link)
{
struct vlan_info *vi = link->l_info;
if (link->l_info_ops != &vlan_info_ops || !link->l_info_ops)
return -NLE_OPNOTSUPP;
IS_VLAN_LINK_ASSERT(link);
return vi->vi_flags;
}
/** @} */
/**
* @name Quality of Service
* @{
*/
int rtnl_link_vlan_set_ingress_map(struct rtnl_link *link, int from,
uint32_t to)
{
struct vlan_info *vi = link->l_info;
if (link->l_info_ops != &vlan_info_ops || !link->l_info_ops)
return -NLE_OPNOTSUPP;
IS_VLAN_LINK_ASSERT(link);
if (from < 0 || from > VLAN_PRIO_MAX)
return -NLE_INVAL;
@ -478,6 +525,30 @@ struct vlan_map *rtnl_link_vlan_get_egress_map(struct rtnl_link *link,
}
}
/** @} */
static const struct trans_tbl vlan_flags[] = {
__ADD(VLAN_FLAG_REORDER_HDR, reorder_hdr)
};
/**
* @name Flag Translation
* @{
*/
char *rtnl_link_vlan_flags2str(int flags, char *buf, size_t len)
{
return __flags2str(flags, buf, len, vlan_flags, ARRAY_SIZE(vlan_flags));
}
int rtnl_link_vlan_str2flags(const char *name)
{
return __str2flags(name, vlan_flags, ARRAY_SIZE(vlan_flags));
}
/** @} */
static void __init vlan_init(void)
{
rtnl_link_register_info(&vlan_info_ops);