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netlink: add basic decoding of NETLINK_ROUTE br_port_msg attributes

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* rtnl_mdb.c: Include "netlink.h", "nlattr.h".
and "xlat/rtnl_mdb_attrs.h".
(decode_br_port_msg): Call decode_nlattr.
* xlat/rtnl_mdb_attrs.in: New file.

Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
This commit is contained in:
JingPiao Chen 2017-08-15 12:41:21 +08:00 committed by Dmitry V. Levin
parent ef4feccbad
commit a4ae112a42
2 changed files with 17 additions and 1 deletions
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15
rtnl_mdb.c
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@ -32,15 +32,20 @@
#ifdef HAVE_STRUCT_BR_PORT_MSG
# include "netlink_route.h"
# include "nlattr.h"
# include "print_fields.h"
# include <netinet/in.h>
# include <linux/if_bridge.h>
# include "netlink.h"
# include "xlat/rtnl_mdb_attrs.h"
DECL_NETLINK_ROUTE_DECODER(decode_br_port_msg)
{
struct br_port_msg bpm = { .family = family };
const size_t offset = sizeof(bpm.family);
size_t offset = sizeof(bpm.family);
bool decode_nla = false;
PRINT_FIELD_XVAL("{", bpm, family, addrfams, "AF_???");
@ -50,10 +55,18 @@ DECL_NETLINK_ROUTE_DECODER(decode_br_port_msg)
sizeof(bpm) - offset,
(void *) &bpm + offset)) {
PRINT_FIELD_IFINDEX("", bpm, ifindex);
decode_nla = true;
}
} else
tprints("...");
tprints("}");
offset = NLMSG_ALIGN(sizeof(bpm));
if (decode_nla && len > offset) {
tprints(", ");
decode_nlattr(tcp, addr + offset, len - offset,
rtnl_mdb_attrs, "MDBA_???", NULL, 0, NULL);
}
}
#endif

3
xlat/rtnl_mdb_attrs.in Normal file
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@ -0,0 +1,3 @@
MDBA_UNSPEC 0
MDBA_MDB 1
MDBA_ROUTER 2