267 lines
7.0 KiB
C
267 lines
7.0 KiB
C
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/**
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* @defgroup if If
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* @ingroup libc
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*/
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#ifndef _NET_IF_H
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#define _NET_IF_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <features.h>
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#define IF_NAMESIZE 16
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struct if_nameindex {
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unsigned int if_index;
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char *if_name;
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};
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/**
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* @ingroup if
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*
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* @par Description:
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* This function is used to convert the index of the network interface corresponding to the name ifname.
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*
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* @param ifname [IN] The name of the network interface.
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*
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @retval #>0 On success, the index number of the network interface was successfully converted
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* @retval #0 On failure, 0 is returned and errno is set appropriately
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*
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* @par Errors
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* <ul>
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* <li><b>ENXIO</b>: Could not find the index corresponding to the interface name.</li>
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* </ul>
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*
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* @par Dependency:
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* <ul><li>if.h</li></ul>
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*
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* @see if_indextoname
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*
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* @since Huawei LiteOS V100R001C00
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*/
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unsigned int if_nametoindex (const char *);
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/**
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* @ingroup if
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*
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* @par Description:
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* This function is used to convert the name of the network interface corresponding
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* to the interface index ifindex. The name is placed in the buffer pointed to by ifname.
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* The buffer must allow for the storage of at least IF_NAMESIZE bytes.
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*
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* @param #ifindex [IN] The index of the network interface.
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* @param #ifname [OUT] The name of the network interface.
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*
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @retval ifname On success, the ifname was successfully converted
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* @retval NULL On failure, NULL is returned and errno is set appropriately
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*
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* @par Errors
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* <ul>
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* <li><b>ENXIO</b>: There is no name as per the index specified.</li>
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* <li><b>EINVAL</b>: The ifname is a null pointer.</li>
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* </ul>
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*
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* @par Dependency:
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* <ul><li>if.h</li></ul>
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*
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* @see if_nametoindex
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*
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* @since Huawei LiteOS V100R001C00
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*/
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char *if_indextoname (unsigned int, char *);
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/**
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* @ingroup if
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*
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* @par Description:
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* This function returns an array of if_nameindex structures, one structure per interface.
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* The if_nameindex structure holds the information about a single interface and is defined as a result of including the <if.h> header.
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* The end of the array of structures is indicated by a structure with an if_index of 0 and an if_name of NULL.
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* The function returns a NULL pointer upon an error, and would set errno to the appropriate value.
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* The memory used for this array of structures along with the interface names pointed to by the if_name members is obtained dynamically.
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*
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* @param void [IN] The function does not take any input instead returns all the interfaces in format if_nameindex structures.
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*
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* @attention
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* <ul>
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* <li>This API is only supported since lwip 2.0.</li>
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* <li>The end of the array of structures is indicated by a structure with an if_index of 0 and an if_name of NULL.
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* The function returns a NULL pointer upon an error, and would set errno to the appropriate value.</li>
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* </ul>
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*
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* @retval #if_nameindex* On success, the function returns an array of if_nameindex structures, one structure per interface. On failure, NULL shall be returned.
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*
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* @par Errors
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* <ul>
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* <li><b>ENOBUFS</b>: Insufficient resources available.</li>
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* </ul>
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*
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* @par Dependency:
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* <ul><li>if.h</li></ul>
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*
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* @see if_freenameindex
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*
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* @since Huawei LiteOS V100R001C00
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*/
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struct if_nameindex *if_nameindex (void);
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/**
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* @ingroup if
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*
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* @par Description:
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* This function frees the dynamic memory that was allocated by if_nameindex().
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* The argument to this function must be a pointer that was returned by if_nameindex().
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*
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* @param ptr [IN] The argument to this function must be a pointer that was returned by if_nameindex().
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*
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* @attention
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* <ul>
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* <li>This API is only supported since lwip 2.0.</li>
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* </ul>
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*
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* @retval #void None.
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*
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* @par Dependency:
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* <ul><li>if.h</li></ul>
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*
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* @see if_nameindex
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*
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* @since Huawei LiteOS V100R001C00
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*/
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void if_freenameindex (struct if_nameindex *);
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#include <sys/socket.h>
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#define IFF_UP 0x1
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#define IFF_BROADCAST 0x2
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#define IFF_DEBUG 0x4
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#define IFF_LOOPBACK 0x8
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#define IFF_POINTOPOINT 0x10
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#define IFF_NOTRAILERS 0x20
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#define IFF_RUNNING 0x40
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#define IFF_NOARP 0x80
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#define IFF_PROMISC 0x100
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#define IFF_ALLMULTI 0x200
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#define IFF_MASTER 0x400
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#define IFF_SLAVE 0x800
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#define IFF_MULTICAST 0x1000
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#define IFF_PORTSEL 0x2000
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#define IFF_AUTOMEDIA 0x4000
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#define IFF_DYNAMIC 0x8000
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#define IFF_LOWER_UP 0x10000
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#define IFF_DORMANT 0x20000
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#define IFF_ECHO 0x40000
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#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST| \
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IFF_ECHO|IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
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struct ifaddr {
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struct sockaddr ifa_addr;
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union {
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struct sockaddr ifu_broadaddr;
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struct sockaddr ifu_dstaddr;
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} ifa_ifu;
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struct iface *ifa_ifp;
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struct ifaddr *ifa_next;
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};
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#define ifa_broadaddr ifa_ifu.ifu_broadaddr
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#define ifa_dstaddr ifa_ifu.ifu_dstaddr
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struct ifmap {
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unsigned long int mem_start;
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unsigned long int mem_end;
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unsigned short int base_addr;
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unsigned char irq;
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unsigned char dma;
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unsigned char port;
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};
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#define IFHWADDRLEN 6
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#define IFNAMSIZ IF_NAMESIZE
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struct ifreq {
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union {
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char ifrn_name[IFNAMSIZ];
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} ifr_ifrn;
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union {
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struct sockaddr ifru_addr;
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struct sockaddr ifru_dstaddr;
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struct sockaddr ifru_broadaddr;
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struct sockaddr ifru_netmask;
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struct sockaddr ifru_hwaddr;
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short int ifru_flags;
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int ifru_ivalue;
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int ifru_mtu;
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struct ifmap ifru_map;
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char ifru_slave[IFNAMSIZ];
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char ifru_newname[IFNAMSIZ];
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char *ifru_data;
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} ifr_ifru;
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};
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#define ifr_name ifr_ifrn.ifrn_name
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#define ifr_hwaddr ifr_ifru.ifru_hwaddr
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#define ifr_addr ifr_ifru.ifru_addr
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#define ifr_dstaddr ifr_ifru.ifru_dstaddr
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#define ifr_broadaddr ifr_ifru.ifru_broadaddr
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#define ifr_netmask ifr_ifru.ifru_netmask
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#define ifr_flags ifr_ifru.ifru_flags
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#define ifr_metric ifr_ifru.ifru_ivalue
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#define ifr_mtu ifr_ifru.ifru_mtu
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#define ifr_map ifr_ifru.ifru_map
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#define ifr_slave ifr_ifru.ifru_slave
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#define ifr_data ifr_ifru.ifru_data
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#define ifr_ifindex ifr_ifru.ifru_ivalue
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#define ifr_bandwidth ifr_ifru.ifru_ivalue
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#define ifr_qlen ifr_ifru.ifru_ivalue
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#define ifr_newname ifr_ifru.ifru_newname
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#define _IOT_ifreq _IOT(_IOTS(char),IFNAMSIZ,_IOTS(char),16,0,0)
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#define _IOT_ifreq_short _IOT(_IOTS(char),IFNAMSIZ,_IOTS(short),1,0,0)
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#define _IOT_ifreq_int _IOT(_IOTS(char),IFNAMSIZ,_IOTS(int),1,0,0)
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struct ifconf {
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int ifc_len;
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union {
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char *ifcu_buf;
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struct ifreq *ifcu_req;
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} ifc_ifcu;
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};
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#define ifc_buf ifc_ifcu.ifcu_buf
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#define ifc_req ifc_ifcu.ifcu_req
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#define _IOT_ifconf _IOT(_IOTS(struct ifconf),1,0,0,0,0)
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#define __UAPI_DEF_IF_IFCONF 0
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#define __UAPI_DEF_IF_IFMAP 0
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#define __UAPI_DEF_IF_IFNAMSIZ 0
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#define __UAPI_DEF_IF_IFREQ 0
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#define __UAPI_DEF_IF_NET_DEVICE_FLAGS 0
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#define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 0
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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