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Add ao_compare support to bridge family af_data 

This patch adds support for ao_compare operation
to bridge link af data operations.

Adds field ce_mask to struct bridge_data to work
with the ATTR attributes. I can submit separate
patches to introduce mask field to ATTR macros.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
This commit is contained in:
roopa 2013-01-08 05:29:10 -08:00 committed by Thomas Graf
parent 09213ee5ee
commit 310ec86b39
1 changed files with 21 additions and 1 deletions
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22
lib/route/link/bridge.c
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@ -15,9 +15,12 @@
#include <netlink/route/rtnl.h>
#include <netlink/route/link/api.h>
#define BRIDGE_ATTR_PORT_STATE 0x0001
struct bridge_data
{
uint8_t b_port_state;
uint32_t ce_mask; /* HACK to support attr macros */
};
static void *bridge_alloc(struct rtnl_link *link)
@ -46,6 +49,7 @@ static int bridge_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,
struct bridge_data *bd = data;
bd->b_port_state = nla_get_u8(attr);
bd->ce_mask |= BRIDGE_ATTR_PORT_STATE;
return 0;
}
@ -55,7 +59,22 @@ static void bridge_dump_details(struct rtnl_link *link,
{
struct bridge_data *bd = data;
nl_dump(p, "port-state %u ", bd->b_port_state);
if (bd->ce_mask & BRIDGE_ATTR_PORT_STATE)
nl_dump(p, "port-state %u ", bd->b_port_state);
}
static int bridge_compare(struct rtnl_link *_a, struct rtnl_link *_b,
int family, uint32_t attrs, int flags)
{
struct bridge_data *a = (struct bridge_data *)_a->l_af_data;
struct bridge_data *b = (struct bridge_data *)_b->l_af_data;
int diff = 0;
#define BRIDGE_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, BRIDGE_ATTR_##ATTR, a, b, EXPR)
diff |= BRIDGE_DIFF(PORT_STATE, a->b_port_state != b->b_port_state);
return diff;
#undef BRIDGE_DIFF
}
static const struct nla_policy protinfo_policy = {
@ -70,6 +89,7 @@ static struct rtnl_link_af_ops bridge_ops = {
.ao_parse_protinfo = &bridge_parse_protinfo,
.ao_dump[NL_DUMP_DETAILS] = &bridge_dump_details,
.ao_protinfo_policy = &protinfo_policy,
.ao_compare = &bridge_compare,
};
static void __init bridge_init(void)