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soreuseport: infrastructure
Definitions and macros for implementing soreusport. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -19,7 +19,7 @@
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#define SO_BROADCAST 0x0020
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#define SO_LINGER 0x0080
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#define SO_OOBINLINE 0x0100
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/* To add :#define SO_REUSEPORT 0x0200 */
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#define SO_REUSEPORT 0x0200
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#define SO_TYPE 0x1008
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#define SO_ERROR 0x1007
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@ -22,7 +22,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -24,7 +24,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -22,7 +22,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -22,7 +22,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -31,7 +31,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -22,7 +22,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -28,8 +28,7 @@
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#define SO_LINGER 0x0080 /* Block on close of a reliable
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socket to transmit pending data. */
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#define SO_OOBINLINE 0x0100 /* Receive out-of-band data in-band. */
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#if 0
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To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */
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#define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */
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#endif
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#define SO_TYPE 0x1008 /* Compatible name for SO_STYLE. */
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@ -22,7 +22,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -13,7 +13,7 @@
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#define SO_BROADCAST 0x0020
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#define SO_LINGER 0x0080
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#define SO_OOBINLINE 0x0100
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/* To add :#define SO_REUSEPORT 0x0200 */
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#define SO_REUSEPORT 0x0200
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#define SO_SNDBUF 0x1001
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#define SO_RCVBUF 0x1002
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#define SO_SNDBUFFORCE 0x100a
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@ -29,7 +29,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_RCVLOWAT 16
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#define SO_SNDLOWAT 17
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#define SO_RCVTIMEO 18
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@ -28,7 +28,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -15,7 +15,7 @@
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#define SO_PEERCRED 0x0040
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#define SO_LINGER 0x0080
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#define SO_OOBINLINE 0x0100
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/* To add :#define SO_REUSEPORT 0x0200 */
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#define SO_REUSEPORT 0x0200
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#define SO_BSDCOMPAT 0x0400
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#define SO_RCVLOWAT 0x0800
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#define SO_SNDLOWAT 0x1000
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@ -32,7 +32,7 @@
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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#define SO_RCVLOWAT 18
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@ -74,4 +74,10 @@ static inline int arch_get_random_int(unsigned int *v)
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}
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#endif
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/* Pseudo random number generator from numerical recipes. */
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static inline u32 next_pseudo_random32(u32 seed)
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{
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return seed * 1664525 + 1013904223;
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}
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#endif /* _LINUX_RANDOM_H */
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@ -140,6 +140,7 @@ typedef __u64 __bitwise __addrpair;
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* @skc_family: network address family
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* @skc_state: Connection state
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* @skc_reuse: %SO_REUSEADDR setting
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* @skc_reuseport: %SO_REUSEPORT setting
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* @skc_bound_dev_if: bound device index if != 0
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* @skc_bind_node: bind hash linkage for various protocol lookup tables
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* @skc_portaddr_node: second hash linkage for UDP/UDP-Lite protocol
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@ -179,7 +180,8 @@ struct sock_common {
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unsigned short skc_family;
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volatile unsigned char skc_state;
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unsigned char skc_reuse;
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unsigned char skc_reuse:4;
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unsigned char skc_reuseport:4;
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int skc_bound_dev_if;
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union {
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struct hlist_node skc_bind_node;
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@ -297,6 +299,7 @@ struct sock {
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#define sk_family __sk_common.skc_family
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#define sk_state __sk_common.skc_state
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#define sk_reuse __sk_common.skc_reuse
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#define sk_reuseport __sk_common.skc_reuseport
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#define sk_bound_dev_if __sk_common.skc_bound_dev_if
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#define sk_bind_node __sk_common.skc_bind_node
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#define sk_prot __sk_common.skc_prot
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#define SO_PRIORITY 12
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#define SO_LINGER 13
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#define SO_BSDCOMPAT 14
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/* To add :#define SO_REUSEPORT 15 */
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#define SO_REUSEPORT 15
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#ifndef SO_PASSCRED /* powerpc only differs in these */
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#define SO_PASSCRED 16
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#define SO_PEERCRED 17
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case SO_REUSEADDR:
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sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE);
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break;
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case SO_REUSEPORT:
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sk->sk_reuseport = valbool;
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break;
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case SO_TYPE:
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case SO_PROTOCOL:
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case SO_DOMAIN:
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@ -972,6 +975,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
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v.val = sk->sk_reuse;
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break;
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case SO_REUSEPORT:
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v.val = sk->sk_reuseport;
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break;
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case SO_KEEPALIVE:
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v.val = sock_flag(sk, SOCK_KEEPOPEN);
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break;
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