z/VM IPv6 Support in CMS

The OpenExtensions Socket interfaces are documented in the C/C++ for z/VM Run-Time Library Reference (SC09-7624). The following changes were first introduced in z/VM Release 5.1.

The following header file changed:

• The netinet/in.h header file is changed for IPv6 support

The following functions are new or updated to support IPv6:

• accept() - accept a new connection on a socket
• bind() - bind a name to a socket
• close() - close a file
• connect() - connect a socket
• freeaddrinfo() - free addrinfo storage
• gai_strerror() - address and name information error description
• getaddrinfo() - get address information
• getclientid() - get identifier for calling application
• gethostbyaddr() - get a host entry by address
• gethostbyname() - get a host entry by name
• gethostent() - get next host entry
• getibmsockopt() - get options associated with a bulk mode socket
• getnameinfo() - get name information
• getnetbyaddr() - get a network entry by address
• getnetbyname() - get a network entry by name
• getpeername() - get name of peer connected to a socket
• getsockname() - get name of a socket
• getsockopt() - get options associated with a socket
• givesocket() - make specified socket available
• ibmsflush() - flush application-sice datagram queue
• if_freenameindex() - free the memory allocated by if_nameindex()
• if_indextoname() - map a network interface index to its corresponding name
• if_nameindex() - return all network interface names and indexes
• if_nametoindex() - map a network interface name to its corresponding index
• inet_ntop() - convert internet address format from binary to text
• inet_pton() - convert internet address format from text to binary
• ioctl() - control device
• listen() - prepare server for incoming client requests
• maxdesc() - get socket numbers to extend beyond default range
• read() - read from a file
• readv() - read data on a socket and store in a set of buffers
• recv() - receive data on a socket
• recvfrom() receive messages on socket
• recvmsg() - receive messages on a socket and store in an array of message headers
• send() - send data on a socket
• sendmsg() - send messages on a socket
• sendto() - send data on a socket
• setibmsockopt() - set options associated with a bulk mode socket
• setsockopt() - set options associated with a socket
• shutdown() - shut dow all or part of a duplex connection
• socket() - create a socket
• takesocket() - acquire a socket from another program
• tcperror() - print error messages of a socket function

The callable services are documented in the OpenExtensions Callable Services Reference (SC24-6105). The following changes were first introduced in z/VM Release 5.1.

The following callable services are updated to support IPv6:

• BPX1ACP - accept
• BPX1BND - bind
• BPX1CLO - close
• BPX1CON - connect
• BPX1GCL - getclientid
• BPX1GIV - givesocket
• BPX1GNM - getsockname/getpeername
• BPX1HST - gethostid/gethostname
• BPX1IOC - w_ioctl
• BPX1LSN - listen
• BPX1OPT - getsockopt/setsockopt
• BPX1RCV - recv
• BPX1RDV - readv
• BPX1RED - read
• BPX1RFM - recvfrom
• BPX2RMS - recvmsg
• BPX1SEL - select/selectex
• BPX1SND - send
• BPX2SMS - sendmsg
• BPX1SHT - shutdown
• BPX1SOC - socket
• BPX1STO - sendto
• BPX1TAK - takesocket
• BPX1WRT - write
• BPX1WRV - writev

The TCP/UDP/IP API for Pascal is documented in the z/VM TCP/IP Programmer's Reference (SC24-6126). The following changes were first introduced in z/VM Release 5.4.

The following structures are added to support IPv6:

• Socket6Type
• Status6InfoType

The following procedures are added to support IPv6:

• Tcp6Open
• Tcp6WaitOpen
• Tcp6Status

The following procedures are updated to support IPv6:

• TcpAbort
• TcpClose
• TcpFReceive
• TcpFSend
• TcpOption
• TcpReceive
• TcpSend
• TcpWaitReceive
• TcpWaitSend

Please direct questions, comments and feedback regarding z/VM's IPv6 support or any of the information on this page to either:

Miguel Delapaz
z/VM Development
migueld@us.ibm.com