mirror of https://github.com/mkerrisk/man-pages
Wrap long lines; .ta + TABs with spaces in code examples
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15
man7/ddp.7
15
man7/ddp.7
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@ -109,7 +109,8 @@ local broadcast address.
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.SH "SOCKET OPTIONS"
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No protocol-specific socket options are supported.
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.SH SYSCTLS
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IP supports a sysctl interface to configure some global AppleTalk parameters.
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IP supports a sysctl interface to configure some global AppleTalk
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parameters.
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The sysctls can be accessed by reading or writing the
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.I /proc/sys/net/atalk/*
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files or with the
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@ -164,8 +165,9 @@ Invalid argument passed.
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Datagram is bigger than the DDP MTU.
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.TP
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.B EACCES
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The user tried to execute an operation without the necessary permissions. These
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include sending to a broadcast address without having the broadcast flag set,
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The user tried to execute an operation without the necessary permissions.
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These include sending to a broadcast address without
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having the broadcast flag set,
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and trying to bind to a reserved port without effective user ID 0 or
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.BR CAP_NET_BIND_SERVICE .
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.TP
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@ -179,7 +181,8 @@ Not enough memory available.
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Invalid socket option passed.
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.TP
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.B EPERM
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User doesn't have permission to set high priority, make a configuration change,
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User doesn't have permission to set high priority,
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make a configuration change,
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or send signals to the requested process or group,
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.TP
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.B EADDRNOTAVAIL
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@ -232,8 +235,8 @@ package and AppleTalk monitoring tools more easily.
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.SH BUGS
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There are too many inconsistent error values.
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.PP
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The ioctls used to configure routing tables, devices, AARP tables and other
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devices are not yet described.
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The ioctls used to configure routing tables, devices,
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AARP tables and other devices are not yet described.
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.SH "SEE ALSO"
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.BR recvmsg (2),
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.BR sendmsg (2),
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76
man7/ip.7
76
man7/ip.7
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@ -110,22 +110,20 @@ On raw sockets
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is set to the IP protocol.
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.PP
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.RS
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.in +0.25i
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.nf
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.ta 4n 19n 31n
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struct sockaddr_in {
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sa_family_t sin_family; /* address family: AF_INET */
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u_int16_t sin_port; /* port in network byte order */
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struct in_addr sin_addr; /* internet address */
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sa_family_t sin_family; /* address family: AF_INET */
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u_int16_t sin_port; /* port in network byte order */
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struct in_addr sin_addr; /* internet address */
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};
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/* Internet address. */
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struct in_addr {
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u_int32_t s_addr; /* address in network byte order */
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u_int32_t s_addr; /* address in network byte order */
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};
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.ta
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.fi
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.RE
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.in -0.25i
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.PP
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.I sin_family
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is always set to
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@ -248,16 +246,16 @@ or
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.BR sendmsg (2).
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.IP
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.RS
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.ta 4n 19n 33n
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.in +0.25i
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.nf
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struct in_pktinfo {
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unsigned int ipi_ifindex; /* Interface index */
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struct in_addr ipi_spec_dst; /* Local address */
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struct in_addr ipi_addr; /* Header Destination address */
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unsigned int ipi_ifindex; /* Interface index */
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struct in_addr ipi_spec_dst; /* Local address */
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struct in_addr ipi_addr; /* Header Destination
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address */
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};
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.fi
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.RE
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.in -0.25i
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.IP
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.\" FIXME elaborate on that.
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.I ipi_ifindex
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@ -394,30 +392,28 @@ control message contains a
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.I sock_extended_err
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structure:
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.IP
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.RS
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.in +0.25i
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.ne 18
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.nf
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.ta 4n 20n 32n
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#define SO_EE_ORIGIN_NONE 0
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#define SO_EE_ORIGIN_LOCAL 1
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#define SO_EE_ORIGIN_ICMP 2
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#define SO_EE_ORIGIN_ICMP6 3
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#define SO_EE_ORIGIN_NONE 0
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#define SO_EE_ORIGIN_LOCAL 1
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#define SO_EE_ORIGIN_ICMP 2
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#define SO_EE_ORIGIN_ICMP6 3
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struct sock_extended_err {
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u_int32_t ee_errno; /* error number */
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u_int8_t ee_origin; /* where the error originated */
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u_int8_t ee_type; /* type */
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u_int8_t ee_code; /* code */
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u_int8_t ee_pad;
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u_int32_t ee_info; /* additional information */
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u_int32_t ee_data; /* other data */
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/* More data may follow */
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u_int32_t ee_errno; /* error number */
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u_int8_t ee_origin; /* where the error originated */
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u_int8_t ee_type; /* type */
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u_int8_t ee_code; /* code */
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u_int8_t ee_pad;
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u_int32_t ee_info; /* additional information */
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u_int32_t ee_data; /* other data */
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/* More data may follow */
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};
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struct sockaddr *SO_EE_OFFENDER(struct sock_extended_err *);
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.ta
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.fi
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.RE
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.in -0.25i
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.IP
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.I ee_errno
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contains the errno number of the queued error.
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@ -550,7 +546,8 @@ take it into account for their packet retransmit strategy.
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To bootstrap the path MTU discovery process on unconnected sockets it
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is possible to start with a big datagram size
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(up to 64K-headers bytes long) and let it shrink by updates of the path MTU.
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(up to 64K-headers bytes long) and let it shrink by updates of the
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path MTU.
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.\" FIXME this is an ugly hack
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To get an initial estimate of the
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@ -602,18 +599,19 @@ packets should be looped back to the local sockets.
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Join a multicast group. Argument is an
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.I ip_mreqn
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structure.
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.PP
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.RS
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.sp
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.in +0.25i
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.nf
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.ta 4n 19n 34n
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struct ip_mreqn {
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struct in_addr imr_multiaddr; /* IP multicast group address */
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struct in_addr imr_address; /* IP address of local interface */
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int imr_ifindex; /* interface index */
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struct in_addr imr_multiaddr; /* IP multicast group
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address */
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struct in_addr imr_address; /* IP address of local
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interface */
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int imr_ifindex; /* interface index */
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};
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.fi
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.RE
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.IP
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.in -0.25i
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.sp
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.I imr_multiaddr
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contains the address of the multicast group the application
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wants to join or leave.
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@ -13,7 +13,7 @@ packet, PF_PACKET \- packet interface on device level.
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.br
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.B #include <netpacket/packet.h>
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.br
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.B #include <net/ethernet.h> /* the L2 protocols */
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.B #include <net/ethernet.h> /* the L2 protocols */
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.sp
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.BI "packet_socket = socket(PF_PACKET, int " socket_type ", int "protocol );
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.fi
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@ -48,7 +48,8 @@ capability may open packet sockets.
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.B SOCK_RAW
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packets are passed to and from the device driver without any changes in
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the packet data. When receiving a packet, the address is still parsed and
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the packet data.
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When receiving a packet, the address is still parsed and
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passed in a standard
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.B sockaddr_ll
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address structure. When transmitting a packet, the user supplied buffer
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@ -98,21 +99,19 @@ even when it is longer than the buffer.
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.SH "ADDRESS TYPES"
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The sockaddr_ll is a device independent physical layer address.
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.RS
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.in +0.25i
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.nf
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.ta 4n 20n 35n
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struct sockaddr_ll {
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unsigned short sll_family; /* Always AF_PACKET */
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unsigned short sll_protocol; /* Physical layer protocol */
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int sll_ifindex; /* Interface number */
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unsigned short sll_hatype; /* Header type */
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unsigned char sll_pkttype; /* Packet type */
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unsigned char sll_halen; /* Length of address */
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unsigned char sll_addr[8]; /* Physical layer address */
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unsigned short sll_family; /* Always AF_PACKET */
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unsigned short sll_protocol; /* Physical layer protocol */
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int sll_ifindex; /* Interface number */
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unsigned short sll_hatype; /* Header type */
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unsigned char sll_pkttype; /* Packet type */
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unsigned char sll_halen; /* Length of address */
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unsigned char sll_addr[8]; /* Physical layer address */
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};
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.ta
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.fi
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.RE
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.in -0.25i
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.B sll_protocol
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is the standard ethernet protocol type in network order as defined
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@ -177,18 +176,16 @@ They both expect a
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.B packet_mreq
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structure as argument:
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.RS
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.in +0.25i
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.nf
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.ta 4n 20n 35n
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struct packet_mreq {
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int mr_ifindex; /* interface index */
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unsigned short mr_type; /* action */
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unsigned short mr_alen; /* address length */
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unsigned char mr_address[8]; /* physical layer address */
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int mr_ifindex; /* interface index */
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unsigned short mr_type; /* action */
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unsigned short mr_alen; /* address length */
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unsigned char mr_address[8]; /* physical layer address */
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};
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.ta
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.fi
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.RE
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.in -0.25i
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.B mr_ifindex
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contains the interface index for the interface whose status
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@ -244,17 +241,15 @@ uses the old
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to specify an interface, which doesn't provide physical layer
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independence.
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.RS
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.in +0.25i
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.nf
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.ta 4n 20n 35n
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struct sockaddr_pkt {
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unsigned short spkt_family;
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unsigned char spkt_device[14];
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unsigned short spkt_protocol;
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unsigned short spkt_family;
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unsigned char spkt_device[14];
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unsigned short spkt_protocol;
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};
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.ta
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.fi
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.RE
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.in -0.25i
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.B spkt_family
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contains
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@ -279,8 +274,8 @@ features.
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The
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.B SOCK_DGRAM
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packet sockets make no attempt to create or parse the IEEE 802.2 LLC header
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for a IEEE 802.3 frame.
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packet sockets make no attempt to create or parse the IEEE 802.2 LLC
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header for a IEEE 802.3 frame.
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When
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.B ETH_P_802_3
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is specified as protocol for sending the kernel creates the
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@ -354,13 +349,13 @@ is a new feature in Linux 2.2. Earlier Linux versions supported only
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glibc 2.1 does not have a define for
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.BR SOL_PACKET .
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The suggested workaround is to use
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.RS
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.in +0.25i
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.nf
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#ifndef SOL_PACKET
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#define SOL_PACKET 263
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#endif
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.fi
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.RE
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.in -0.25i
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This is fixed in later glibc versions and also does not occur on
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libc5 systems.
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@ -40,11 +40,10 @@ for more information.
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Some rtnetlink messages have optional attributes after the initial header:
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.nf
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.ta 4 19 32
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struct rtattr {
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unsigned short rta_len; /* Length of option */
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unsigned short rta_type; /* Type of option */
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/* Data follows */
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unsigned short rta_len; /* Length of option */
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unsigned short rta_type; /* Type of option */
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/* Data follows */
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};
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.fi
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@ -65,13 +64,12 @@ structure followed by a series of
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structures.
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.nf
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.ta 4 19 32
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struct ifinfomsg {
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unsigned char ifi_family; /* AF_UNSPEC */
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unsigned short ifi_type; /* Device type */
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int ifi_index; /* Interface index */
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unsigned int ifi_flags; /* Device flags */
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unsigned int ifi_change; /* change mask */
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unsigned char ifi_family; /* AF_UNSPEC */
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unsigned short ifi_type; /* Device type */
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int ifi_index; /* Interface index */
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unsigned int ifi_flags; /* Device flags */
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unsigned int ifi_change; /* change mask */
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};
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.fi
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struct net_device_stats
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T}:Interface Statistics.
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.TE
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.TP
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.BR RTM_NEWADDR ", " RTM_DELADDR ", " RTM_GETADDR
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.TP
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.BR RTM_NEWADDR ", " RTM_DELADDR ", " RTM_GETADDR
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Add, remove or receive information about an IP address associated with
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an interface. In Linux 2.2 an interface can carry multiple IP addresses,
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this replaces the alias device concept in 2.0. In Linux 2.2 these messages
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@ -115,13 +113,12 @@ structure, optionally followed by
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routing attributes.
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.nf
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.ta 4 19 32
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struct ifaddrmsg {
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unsigned char ifa_family; /* Address type */
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unsigned char ifa_prefixlen; /* Prefixlength of the address */
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unsigned char ifa_flags; /* Address flags */
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unsigned char ifa_scope; /* Address scope */
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int ifa_index; /* Interface index */
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unsigned char ifa_family; /* Address type */
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unsigned char ifa_prefixlen; /* Prefixlength of address */
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unsigned char ifa_flags; /* Address flags */
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unsigned char ifa_scope; /* Address scope */
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int ifa_index; /* Interface index */
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};
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.fi
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@ -161,8 +158,8 @@ IFA_CACHEINFO:struct ifa_cacheinfo:Address information.
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.TE
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.\" FIXME struct ifa_cacheinfo
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.TP
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.BR RTM_NEWROUTE ", " RTM_DELROUTE ", " RTM_GETROUTE
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.TP
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.BR RTM_NEWROUTE ", " RTM_DELROUTE ", " RTM_GETROUTE
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Create, remove or receive information about a network route.
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These messages contain an
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.B rtmsg
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@ -182,19 +179,18 @@ and
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0 is the wildcard.
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.nf
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.ta 4 19 32
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struct rtmsg {
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unsigned char rtm_family; /* Address family of route */
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unsigned char rtm_dst_len; /* Length of source */
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unsigned char rtm_src_len; /* Length of destination */
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unsigned char rtm_tos; /* TOS filter */
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unsigned char rtm_family; /* Address family of route */
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unsigned char rtm_dst_len; /* Length of source */
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unsigned char rtm_src_len; /* Length of destination */
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unsigned char rtm_tos; /* TOS filter */
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unsigned char rtm_table; /* Routing table ID */
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unsigned char rtm_protocol; /* Routing protocol; see below */
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unsigned char rtm_scope; /* See below */
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unsigned char rtm_type; /* See below */
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unsigned char rtm_table; /* Routing table ID */
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unsigned char rtm_protocol; /* Routing protocol; see below */
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unsigned char rtm_scope; /* See below */
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unsigned char rtm_type; /* See below */
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unsigned int rtm_flags;
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unsigned int rtm_flags;
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};
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.fi
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@ -321,28 +317,27 @@ RTA_CACHEINFO::
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.TE
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.B Fill these values in!
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.TP
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.BR RTM_NEWNEIGH ", " RTM_DELNEIGH ", " RTM_GETNEIGH
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.TP
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.BR RTM_NEWNEIGH ", " RTM_DELNEIGH ", " RTM_GETNEIGH
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Add, remove or receive information about a neighbour table
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entry (e.g. an ARP entry). The message contains an
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.B ndmsg
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structure.
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.nf
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.ta 4 19 32
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struct ndmsg {
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unsigned char ndm_family;
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int ndm_ifindex; /* Interface index */
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__u16 ndm_state; /* State */
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__u8 ndm_flags; /* Flags */
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__u8 ndm_type;
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unsigned char ndm_family;
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int ndm_ifindex; /* Interface index */
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__u16 ndm_state; /* State */
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__u8 ndm_flags; /* Flags */
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__u8 ndm_type;
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};
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struct nda_cacheinfo {
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__u32 ndm_confirmed;
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__u32 ndm_used;
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__u32 ndm_updated;
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__u32 ndm_refcnt;
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__u32 ndm_confirmed;
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__u32 ndm_used;
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__u32 ndm_updated;
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__u32 ndm_refcnt;
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};
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.fi
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@ -409,13 +404,12 @@ and may be followed by a series of
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attributes.
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.nf
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.ta 4 19 32
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struct tcmsg {
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unsigned char tcm_family;
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int tcm_ifindex; /* interface index */
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__u32 tcm_handle; /* Qdisc handle */
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__u32 tcm_parent; /* Parent qdisc */
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__u32 tcm_info;
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unsigned char tcm_family;
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int tcm_ifindex; /* interface index */
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__u32 tcm_handle; /* Qdisc handle */
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__u32 tcm_parent; /* Parent qdisc */
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__u32 tcm_info;
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};
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.fi
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|
|
|
@ -405,16 +405,14 @@ option. The argument is a
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.I linger
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structure.
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.PP
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.RS
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.in +0.25i
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.nf
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.ta 4n 10n 22n
|
||||
struct linger {
|
||||
int l_onoff; /* linger active */
|
||||
int l_linger; /* how many seconds to linger for */
|
||||
int l_onoff; /* linger active */
|
||||
int l_linger; /* how many seconds to linger for */
|
||||
};
|
||||
.ta
|
||||
.fi
|
||||
.RE
|
||||
.in -0.25i
|
||||
.IP
|
||||
When enabled, a
|
||||
.BR close (2)
|
||||
|
@ -542,11 +540,11 @@ per socket.
|
|||
These operations can be accessed using
|
||||
.BR ioctl (2):
|
||||
|
||||
.RS
|
||||
.in +0.25i
|
||||
.nf
|
||||
.IB error " = ioctl(" ip_socket ", " ioctl_type ", " &value_result ");"
|
||||
.fi
|
||||
.RE
|
||||
.in -0.25i
|
||||
|
||||
.TP
|
||||
.B SIOCGSTAMP
|
||||
|
|
22
man7/unix.7
22
man7/unix.7
|
@ -60,17 +60,16 @@ The local address can be set using
|
|||
When a socket is connected and it doesn't already have a local address a
|
||||
unique address in the abstract namespace will be generated automatically.
|
||||
|
||||
.RS
|
||||
.in +0.25i
|
||||
.nf
|
||||
#define UNIX_PATH_MAX 108
|
||||
#define UNIX_PATH_MAX 108
|
||||
|
||||
.ta 4n 17n 42n
|
||||
struct sockaddr_un {
|
||||
sa_family_t sun_family; /* AF_UNIX */
|
||||
char sun_path[UNIX_PATH_MAX]; /* pathname */
|
||||
sa_family_t sun_family; /* AF_UNIX */
|
||||
char sun_path[UNIX_PATH_MAX]; /* pathname */
|
||||
};
|
||||
.fi
|
||||
.RE
|
||||
.in -0.25i
|
||||
|
||||
.B sun_family
|
||||
always contains
|
||||
|
@ -163,16 +162,15 @@ The credentials are passed as a
|
|||
.I struct ucred
|
||||
ancillary message.
|
||||
|
||||
.RS
|
||||
.in +0.25i
|
||||
.nf
|
||||
.ta 4n 11n 17n
|
||||
struct ucred {
|
||||
pid_t pid; /* process ID of the sending process */
|
||||
uid_t uid; /* user ID of the sending process */
|
||||
gid_t gid; /* group ID of the sending process */
|
||||
pid_t pid; /* process ID of the sending process */
|
||||
uid_t uid; /* user ID of the sending process */
|
||||
gid_t gid; /* group ID of the sending process */
|
||||
};
|
||||
.fi
|
||||
.RE
|
||||
.in -0.25i
|
||||
|
||||
The credentials which the sender specifies are checked by the kernel.
|
||||
A process with effective user ID 0 is allowed to specify values that do
|
||||
|
|
Loading…
Reference in New Issue