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Commit b56ddcf9 authored by Sauvik Saha's avatar Sauvik Saha Committed by Gerrit - the friendly Code Review server
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net: Indicate whether a socket is a transparent socket 



Modify the printout functions for IPv4-TCP, IPv4-UDP, IPv6-TCP, IPv6-UDP,
such that the state for the socket is printed as state = state | 0x80.
The actual socket state is unmodified. This change is required for the
user space to determine whether a socket is a transparent socket, and
to determine if the socket holder intends to consume packets locally
or to forward them to an external processor.

CRs-Fixed: 2156182
Change-Id: I2ca403b4c2c74e7ddcdbda53e4ba43613bae9c42
Signed-off-by: default avatarSauvik Saha <ssaha@codeaurora.org>
parent b5d21191

net/ipv4/tcp_ipv4.c

+5 −1
Original line number Diff line number Diff line
@@ -2433,6 +2433,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) 
	__be32 src = inet->inet_rcv_saddr;

	__u16 destp = ntohs(inet->inet_dport);

	__u16 srcp = ntohs(inet->inet_sport);

	__u8 seq_state = sk->sk_state;

	int rx_queue;

	int state;
@@ -2453,6 +2454,9 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) 
	}



	state = inet_sk_state_load(sk);

	if (inet->transparent)

		seq_state |= 0x80;



	if (state == TCP_LISTEN)

		rx_queue = sk->sk_ack_backlog;

	else
@@ -2464,7 +2468,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) 


	seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "

			"%08X %5u %8d %lu %d %pK %lu %lu %u %u %d",

		i, src, srcp, dest, destp, state,

		i, src, srcp, dest, destp, seq_state,

		READ_ONCE(tp->write_seq) - tp->snd_una,

		rx_queue,

		timer_active,

net/ipv4/udp.c

+5 −1
Original line number Diff line number Diff line
@@ -2902,10 +2902,14 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f, 
	__be32 src  = inet->inet_rcv_saddr;

	__u16 destp	  = ntohs(inet->inet_dport);

	__u16 srcp	  = ntohs(inet->inet_sport);

	__u8 state = sp->sk_state;



	if (inet->transparent)

		state |= 0x80;



	seq_printf(f, "%5d: %08X:%04X %08X:%04X"

		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u",

		bucket, src, srcp, dest, destp, sp->sk_state,

		bucket, src, srcp, dest, destp, state,

		sk_wmem_alloc_get(sp),

		udp_rqueue_get(sp),

		0, 0L, 0,

net/ipv6/datagram.c

+6 −1
Original line number Diff line number Diff line
@@ -1027,9 +1027,14 @@ void __ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp, 
			       __u16 srcp, __u16 destp, int rqueue, int bucket)

{

	const struct in6_addr *dest, *src;

	__u8 state = sp->sk_state;



	dest  = &sp->sk_v6_daddr;

	src   = &sp->sk_v6_rcv_saddr;



	if (inet_sk(sp) && inet_sk(sp)->transparent)

		state |= 0x80;



	seq_printf(seq,

		   "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "

		   "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u\n",
@@ -1038,7 +1043,7 @@ void __ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp, 
		   src->s6_addr32[2], src->s6_addr32[3], srcp,

		   dest->s6_addr32[0], dest->s6_addr32[1],

		   dest->s6_addr32[2], dest->s6_addr32[3], destp,

		   sp->sk_state,

		   state,

		   sk_wmem_alloc_get(sp),

		   rqueue,

		   0, 0L, 0,

net/ipv6/tcp_ipv6.c

+5 −1
Original line number Diff line number Diff line
@@ -1867,6 +1867,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) 
	const struct fastopen_queue *fastopenq = &icsk->icsk_accept_queue.fastopenq;

	int rx_queue;

	int state;

	__u8 state_seq = sp->sk_state;



	dest  = &sp->sk_v6_daddr;

	src   = &sp->sk_v6_rcv_saddr;
@@ -1899,6 +1900,9 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) 
		rx_queue = max_t(int, READ_ONCE(tp->rcv_nxt) -

				      READ_ONCE(tp->copied_seq), 0);



	if (inet->transparent)

		state_seq |= 0x80;



	seq_printf(seq,

		   "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "

		   "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %lu %lu %u %u %d\n",
@@ -1907,7 +1911,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) 
		   src->s6_addr32[2], src->s6_addr32[3], srcp,

		   dest->s6_addr32[0], dest->s6_addr32[1],

		   dest->s6_addr32[2], dest->s6_addr32[3], destp,

		   state,

		   state_seq,

		   READ_ONCE(tp->write_seq) - tp->snd_una,

		   rx_queue,

		   timer_active,