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m241Neelima/components/ip_net2-6.9/ipcom/include/ipcom_sock2.h
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neelimap afc7070c1f original files of m241
2026-07-30 11:19:44 +05:30

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/*
******************************************************************************
* HEADER FILE
*
* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipcom_sock2.h,v $ $Revision: 1.36 $
* $Source: /home/interpeak/CVSRoot/ipcom/include/ipcom_sock2.h,v $
* $Author: kenneth $ $Date: 2009-06-04 19:50:50 $
* $State: Exp $ $Locker: $
*
* INTERPEAK_COPYRIGHT_STRING
* Design and implementation by Lennart Bang <lob@interpeak.se>
******************************************************************************
*/
#ifndef IPCOM_SOCK2_H
#define IPCOM_SOCK2_H
/*
****************************************************************************
* 1 DESCRIPTION
****************************************************************************
* Extended (try to avoid!) Interpeak BSD socket API.
*/
/*
****************************************************************************
* 2 CONFIGURATION
****************************************************************************
*/
#include "ipcom_config.h"
/*
****************************************************************************
* 3 INCLUDE FILES
****************************************************************************
*/
#include "ipcom_type.h"
#include "ipcom_clibmap.h"
#include "ipcom_cstyle.h"
#include "ipcom_sock.h"
#include "ipcom_pkt.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
****************************************************************************
* 4 DEFINES
****************************************************************************
*/
/*
*===========================================================================
* must define IP_LITTLE_ENDIAN or IP_BIG_ENDIAN
*===========================================================================
*/
#ifndef _shroud
#if !defined(IP_LITTLE_ENDIAN) && !defined(IP_BIG_ENDIAN)
#error must_define_IP_LITTLE_ENDIAN_or_IP_BIG_ENDIAN
#endif
#endif
/*
*===========================================================================
* flags for ipcom_getnameinfo()
*===========================================================================
*/
#define IP_NI_NOFQDN 0x00000001
#define IP_NI_NUMERICHOST 0x00000002
#define IP_NI_NAMEREQD 0x00000004
#define IP_NI_NUMERICSERV 0x00000008
#define IP_NI_DGRAM 0x00000010
/*
*===========================================================================
* flags for ipcom_getaddrinfo()
*===========================================================================
*/
#define IP_AI_PASSIVE 0x00000001 /* get address to use bind() */
#define IP_AI_CANONNAME 0x00000002 /* fill ai_canonname */
#define IP_AI_NUMERICHOST 0x00000004 /* prevent name resolution */
#define IP_AI_NUMERICSERV 0x00000008 /* prevent service name resolution */
#define IP_AI_ALL 0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
#define IP_AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */
#define IP_AI_V4MAPPED 0x00000800 /* accept IPv4-mapped IPv6 address */
/*
*===========================================================================
* error codes for ipcom_getnameinfo()/ipcom_getaddrinfo()
*===========================================================================
*/
#define IP_EAI_AGAIN 2
#define IP_EAI_BADFLAGS 3
#define IP_EAI_FAIL 4
#define IP_EAI_FAMILY 5
#define IP_EAI_MEMORY 6
#define IP_EAI_NONAME 8
#define IP_EAI_SERVICE 9
#define IP_EAI_SOCKTYPE 10
#define IP_EAI_SYSTEM 11
/*
*===========================================================================
* ipcom_h_errno values for ipcom_gethostbyname()/ipcom_gethostbyaddr()
*===========================================================================
*/
#define IP_HOST_NOT_FOUND 1
#define IP_TRY_AGAIN 2
#define IP_NO_RECOVERY 3
#define IP_NO_DATA 4
#define IP_NO_ADDRESS IP_NO_DATA
/*
****************************************************************************
* 5 TYPES
****************************************************************************
*/
/*
*===========================================================================
* Ip_protoent
*===========================================================================
*/
struct Ip_protoent
{
char *p_name; /* official name of protocol */
char **p_aliases; /* alias list */
int p_proto; /* protocol number */
};
/*
*===========================================================================
* Ip_servent
*===========================================================================
*/
struct Ip_servent
{
char *s_name; /* official name of service */
char **s_aliases; /* alias list */
int s_port; /* port service resides at */
char *s_proto; /* protocol to use */
};
/*
*===========================================================================
* Ip_addrinfo
*===========================================================================
*/
struct Ip_addrinfo
{
int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
int ai_family; /* PF_xxx */
int ai_socktype; /* SOCK_xxx */
int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
Ip_size_t ai_addrlen; /* length of ai_addr */
char *ai_canonname; /* canonical name for hostname */
struct Ip_sockaddr *ai_addr; /* binary address */
struct Ip_addrinfo *ai_next; /* next structure in linked list */
};
/*
*===========================================================================
* Ip_ifaddrs
*===========================================================================
* port/src/ipcom_ifaddrs.c function structure.
*/
struct Ip_ifaddrs
{
struct Ip_ifaddrs *ifa_next;
char *ifa_name;
unsigned int ifa_flags;
struct Ip_sockaddr *ifa_addr;
struct Ip_sockaddr *ifa_netmask;
union
{
struct Ip_sockaddr *ifu_broadaddr;
struct Ip_sockaddr *ifu_dstaddr;
} ifa_ifu;
# ifndef ifa_broadaddr
# define ifa_broadaddr ifa_ifu.ifu_broadaddr
# endif
# ifndef ifa_dstaddr
# define ifa_dstaddr ifa_ifu.ifu_dstaddr
# endif
void *ifa_data;
};
/*
*===========================================================================
* Ip_sockaddr_mpls
*===========================================================================
* Used for IP->MPLS psuedo-wire routes
*/
#include "ipcom_align16.h"
IP_PACKED1 struct Ip_sockaddr_mpls
{
#ifdef IPCOM_USE_SA_LEN
Ip_u8 smpls_len; /* Length of this structure */
#endif
Ip_sa_family_t smpls_family; /* Always IP_AF_MPLS */
Ip_u32 smpls_key; /* Key to an NHLFE entry */
char smpls_zero[10]; /* Unused space */
}
IP_PACKED2;
#include "ipcom_align16.h"
/*
****************************************************************************
* 6 SOCKET EXTENSION FUNCTIONS
****************************************************************************
*/
/* src/ipcom_sock2.c - address conversions (use pton/ntop for all new code!) */
IP_PUBLIC char *ipcom_inet_ntoa(const struct Ip_in_addr in);
IP_PUBLIC unsigned long ipcom_inet_addr(const char *cp);
IP_PUBLIC int ipcom_inet_aton(const char *cp, struct Ip_in_addr *addr);
/* port/src/ipcom_gethostby.c (use getipnodebyname/getipnodebyaddr for all new code!) */
IP_EXTERN int ipcom_h_errno;
IP_PUBLIC struct Ip_hostent *ipcom_gethostbyname(const char *name);
IP_PUBLIC struct Ip_hostent *ipcom_gethostbyname_r(const char *name,
struct Ip_hostent *result,
char *buffer, int buflen, int *h_errnop);
IP_PUBLIC struct Ip_hostent *ipcom_gethostbyaddr(const char *addr, int len, int type);
IP_PUBLIC struct Ip_hostent *ipcom_gethostbyaddr_r(const char *addr, int length, int type,
struct Ip_hostent *result,
char *buffer, int buflen, int *h_errnop);
/* src/ipcom_sock2.c (dummy functions, avoid!) */
IP_PUBLIC struct Ip_protoent *ipcom_getprotobyname(const char *name);
IP_PUBLIC struct Ip_protoent *ipcom_getprotobynumber(int proto);
/* port/src/ipcom_getservby.c */
IP_PUBLIC struct Ip_servent *ipcom_getservbyname(const char *name, const char *proto);
IP_PUBLIC struct Ip_servent *ipcom_getservbyport(int port, char *proto);
/* port/src/ipcom_getinfo.c */
IP_PUBLIC int ipcom_getnameinfo(IP_CONST struct Ip_sockaddr *sa,
Ip_socklen_t salen,
char *host, Ip_size_t hostlen,
char *serv, Ip_size_t servlen,
int flags);
IP_PUBLIC int ipcom_getaddrinfo(IP_CONST char *hostname,
IP_CONST char *servname,
IP_CONST struct Ip_addrinfo *hints,
struct Ip_addrinfo **res);
IP_PUBLIC void ipcom_freeaddrinfo(struct Ip_addrinfo *ai);
/* port/src/ipcom_ifaddrs.c */
IP_PUBLIC int ipcom_getifaddrs(struct Ip_ifaddrs **ifap);
IP_PUBLIC void ipcom_freeifaddrs(struct Ip_ifaddrs *ifp);
/*
*===========================================================================
* hostname
*===========================================================================
* port/src/ipcom_hostname.c - ipcom_gethostname() and ipcom_sethostname()
*/
#define IP_MAXHOSTNAMELEN 64 /* Maximum length of hostname */
#if defined(IPCOM_GETHOSTNAME) && IPCOM_GETHOSTNAME != 1
#define ipcom_gethostname IPCOM_GETHOSTNAME
#elif !defined(IPCOM_GETHOSTNAME)
#define ipcom_gethostname gethostname
#endif
#if (defined(IPCOM_GETHOSTNAME) && IPCOM_GETHOSTNAME == 1) || defined(IPCOM_USE_CLIB_PROTO)
IP_PUBLIC int ipcom_gethostname(char *name, Ip_size_t len);
#endif
#if defined(IPCOM_SETHOSTNAME) && IPCOM_SETHOSTNAME != 1
#define ipcom_sethostname IPCOM_SETHOSTNAME
#elif !defined(IPCOM_SETHOSTNAME)
#define ipcom_sethostname sethostname
#endif
#if (defined(IPCOM_SETHOSTNAME) && IPCOM_SETHOSTNAME == 1) || defined(IPCOM_USE_CLIB_PROTO)
IP_PUBLIC int ipcom_sethostname(const char *name, Ip_size_t len);
#endif
/*
*===========================================================================
* ipcom_socketpair
*===========================================================================
* Description: Creates a pair of connected sockets in the specified domain.
* Parameters: domain - Address domain to use, support domains are
* IP_AF_INET and IP_AF_INET6.
* type - Socket type to use, supported types are
* IP_SOCK_STREAM and IP_SOCK_DGRAM.
* protocol - Transport protocol to use, can be set to 0 which
* means that the kernel will pick the protocol.
* sv - The 2 sockets are returned into this array.
* Returns: 0 = success, -1 = error (code in ipcom_errno).
*
*/
IP_PUBLIC int ipcom_socketpair(int domain, int type, int protocol, int sv[2]);
/*
*===========================================================================
* ipcom_pkt_add_hdr_to_pool
*===========================================================================
* Description: Allocates packet headers and put them in the pool.
* Parameters: num - Number of packet headers to add.
* Returns: 0 = success, < 0 = negative errno code.
*
*/
IP_PUBLIC int ipcom_pkt_add_hdr_to_pool(int num);
/*
*===========================================================================
* ipcom_pkt_hdrspace
*===========================================================================
* Description: Returns the number of octets that must be reserved before
* the application data when calling ipcom_pkt_sendto() for
* this socket.
* Parameters: fd - The socket descriptor to use when sending this packet.
* Returns: >=0 = the number of octets that must be reserved for
* transport, network and link header.
* =IP_SOCKERR = error, get the error from ipcom_errno.
*
*/
IP_PUBLIC int ipcom_pkt_hdrspace(Ip_fd fd);
/*
*===========================================================================
* ipcom_pkt_sendto
*===========================================================================
* Description: Zero copy version of ipcom_sendto().
* Parameters: fd - The socket descriptor to use when sending this packet.
* buf - The data to send.
* start - Offset into 'buf' where the data begins, must
* be large enough to allow the stack to add transport, network
* and link header before of the data (use ipcom_pkt_hdrspace()
* to get the minimum value), this value must be even.
* len - The length of the data, 'buf' must be at least start+len
* octets long.
* freefunc - A function that will free the 'buf' pointer.
* freefunc_cookie - Will be passed as the 2:nd argument to
* 'freefunc' when the 'buf' is freed.
* flags - IP_MSG_xxx flags.
* to - The destination address. Unused if the socket has been
* connected by a call to ipcom_connect().
* tolen - The length of the 'to' buffer.
* Returns: >=0 = the number of bytes sent (success), =IP_SOCKERR =
* error, get the error code from ipcom_errno.
*
*/
IP_PUBLIC int ipcom_pkt_sendto(Ip_fd fd,
void *buf, int start, Ip_size_t len,
Ipcom_pkt_freefunc freefunc, void *freefunc_cookie,
int flags, IP_CONST struct Ip_sockaddr *to, Ip_socklen_t tolen);
/*
*===========================================================================
* ipcom_pkt_recvfrom
*===========================================================================
* Description: Receives a packet (zero-copy).
* Parameters: fd - A socket descriptor.
* pbuf - Pointer to where the buffer pointer should be stored.
* pstart - Will contain the offset into 'buf' where the
* application data starts.
* pfreefunc - Pointer to the function pointer that must
* be called to free the buffer will be stored.
* pfreefunc_cookie - Must be passed as argument 2 when calling
* 'freefunc'.
* flags - IP_MSG_xxx flags.
* from - The sender of the packet.
* fromlen - The length of the from buffer.
* Returns: The length of the returned buffer or IP_SOCKERR if the call
* failed, get the error code from ipcom_errno.
*
*/
IP_PUBLIC int ipcom_pkt_recvfrom(Ip_fd fd,
void **pbuf, int *pstart,
Ipcom_pkt_freefunc *pfreefunc, void **pfreefunc_cookie,
int flags, struct Ip_sockaddr *from, Ip_socklen_t *fromlen);
#ifdef __cplusplus
}
#endif
#endif
/*
****************************************************************************
* END OF FILE
****************************************************************************
*/
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