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sock_diag: allow to dump bpf filters
This patch allows to dump BPF filters attached to a socket with SO_ATTACH_FILTER. Note that we check CAP_SYS_ADMIN before allowing to dump this info. For now, only AF_PACKET sockets use this feature. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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4 changed files with 42 additions and 0 deletions
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@ -17,6 +17,7 @@ struct packet_diag_req {
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#define PACKET_SHOW_RING_CFG 0x00000004 /* Rings configuration parameters */
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#define PACKET_SHOW_FANOUT 0x00000008
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#define PACKET_SHOW_MEMINFO 0x00000010
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#define PACKET_SHOW_FILTER 0x00000020
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struct packet_diag_msg {
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__u8 pdiag_family;
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@ -35,6 +36,7 @@ enum {
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PACKET_DIAG_FANOUT,
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PACKET_DIAG_UID,
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PACKET_DIAG_MEMINFO,
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PACKET_DIAG_FILTER,
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__PACKET_DIAG_MAX,
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};
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