c30b70deb5
This commit adds socket diagnostics capability for AF_TIPC in netlink family NETLINK_SOCK_DIAG in a new kernel module (diag.ko). The following are key design considerations: - config TIPC_DIAG has default y, like INET_DIAG. - only requests with flag NLM_F_DUMP is supported (dump all). - tipc_sock_diag_req message is introduced to send filter parameters. - the response attributes are of TLV, some nested. To avoid exposing data structures between diag and tipc modules and avoid code duplication, the following additions are required: - export tipc_nl_sk_walk function to reuse socket iterator. - export tipc_sk_fill_sock_diag to fill the tipc diag attributes. - create a sock_diag response message in __tipc_add_sock_diag defined in diag.c and use the above exported tipc_sk_fill_sock_diag to fill response. Acked-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: GhantaKrishnamurthy MohanKrishna <mohan.krishna.ghanta.krishnamurthy@ericsson.com> Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
18 lines
483 B
C
18 lines
483 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/* AF_TIPC sock_diag interface for querying open sockets */
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#ifndef _UAPI__TIPC_SOCKETS_DIAG_H__
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#define _UAPI__TIPC_SOCKETS_DIAG_H__
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#include <linux/types.h>
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#include <linux/sock_diag.h>
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/* Request */
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struct tipc_sock_diag_req {
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__u8 sdiag_family; /* must be AF_TIPC */
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__u8 sdiag_protocol; /* must be 0 */
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__u16 pad; /* must be 0 */
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__u32 tidiag_states; /* query*/
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};
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#endif /* _UAPI__TIPC_SOCKETS_DIAG_H__ */
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