/** * @defgroup if If * @ingroup libc */ #ifndef _NET_IF_H #define _NET_IF_H #ifdef __cplusplus extern "C" { #endif #include #define IF_NAMESIZE 16 struct if_nameindex { unsigned int if_index; char *if_name; }; /** * @ingroup if * * @par Description: * This function is used to convert the index of the network interface corresponding to the name ifname. * * @param ifname [IN] The name of the network interface. * * @attention * * * @retval #>0 On success, the index number of the network interface was successfully converted * @retval #0 On failure, 0 is returned and errno is set appropriately * * @par Errors * * * @par Dependency: * * * @see if_indextoname * * @since Huawei LiteOS V100R001C00 */ unsigned int if_nametoindex (const char *); /** * @ingroup if * * @par Description: * This function is used to convert the name of the network interface corresponding * to the interface index ifindex. The name is placed in the buffer pointed to by ifname. * The buffer must allow for the storage of at least IF_NAMESIZE bytes. * * @param #ifindex [IN] The index of the network interface. * @param #ifname [OUT] The name of the network interface. * * @attention * * * @retval ifname On success, the ifname was successfully converted * @retval NULL On failure, NULL is returned and errno is set appropriately * * @par Errors * * * @par Dependency: * * * @see if_nametoindex * * @since Huawei LiteOS V100R001C00 */ char *if_indextoname (unsigned int, char *); /** * @ingroup if * * @par Description: * This function returns an array of if_nameindex structures, one structure per interface. * The if_nameindex structure holds the information about a single interface and is defined as a result of including the header. * The end of the array of structures is indicated by a structure with an if_index of 0 and an if_name of NULL. * The function returns a NULL pointer upon an error, and would set errno to the appropriate value. * The memory used for this array of structures along with the interface names pointed to by the if_name members is obtained dynamically. * * @param void [IN] The function does not take any input instead returns all the interfaces in format if_nameindex structures. * * @attention * * * @retval #if_nameindex* On success, the function returns an array of if_nameindex structures, one structure per interface. On failure, NULL shall be returned. * * @par Errors * * * @par Dependency: * * * @see if_freenameindex * * @since Huawei LiteOS V100R001C00 */ struct if_nameindex *if_nameindex (void); /** * @ingroup if * * @par Description: * This function frees the dynamic memory that was allocated by if_nameindex(). * The argument to this function must be a pointer that was returned by if_nameindex(). * * @param ptr [IN] The argument to this function must be a pointer that was returned by if_nameindex(). * * @attention * * * @retval #void None. * * @par Dependency: * * * @see if_nameindex * * @since Huawei LiteOS V100R001C00 */ void if_freenameindex (struct if_nameindex *); #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) #include #define IFF_UP 0x1 #define IFF_BROADCAST 0x2 #define IFF_DEBUG 0x4 #define IFF_LOOPBACK 0x8 #define IFF_POINTOPOINT 0x10 #define IFF_NOTRAILERS 0x20 #define IFF_RUNNING 0x40 #define IFF_NOARP 0x80 #define IFF_PROMISC 0x100 #define IFF_ALLMULTI 0x200 #define IFF_MASTER 0x400 #define IFF_SLAVE 0x800 #define IFF_MULTICAST 0x1000 #define IFF_PORTSEL 0x2000 #define IFF_AUTOMEDIA 0x4000 #define IFF_DYNAMIC 0x8000 #define IFF_LOWER_UP 0x10000 #define IFF_DORMANT 0x20000 #define IFF_ECHO 0x40000 #define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST| \ IFF_ECHO|IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT) struct ifaddr { struct sockaddr ifa_addr; union { struct sockaddr ifu_broadaddr; struct sockaddr ifu_dstaddr; } ifa_ifu; struct iface *ifa_ifp; struct ifaddr *ifa_next; }; #define ifa_broadaddr ifa_ifu.ifu_broadaddr #define ifa_dstaddr ifa_ifu.ifu_dstaddr struct ifmap { unsigned long int mem_start; unsigned long int mem_end; unsigned short int base_addr; unsigned char irq; unsigned char dma; unsigned char port; }; #define IFHWADDRLEN 6 #define IFNAMSIZ IF_NAMESIZE struct ifreq { union { char ifrn_name[IFNAMSIZ]; } ifr_ifrn; union { struct sockaddr ifru_addr; struct sockaddr ifru_dstaddr; struct sockaddr ifru_broadaddr; struct sockaddr ifru_netmask; struct sockaddr ifru_hwaddr; short int ifru_flags; int ifru_ivalue; int ifru_mtu; struct ifmap ifru_map; char ifru_slave[IFNAMSIZ]; char ifru_newname[IFNAMSIZ]; char *ifru_data; } ifr_ifru; }; #define ifr_name ifr_ifrn.ifrn_name #define ifr_hwaddr ifr_ifru.ifru_hwaddr #define ifr_addr ifr_ifru.ifru_addr #define ifr_dstaddr ifr_ifru.ifru_dstaddr #define ifr_broadaddr ifr_ifru.ifru_broadaddr #define ifr_netmask ifr_ifru.ifru_netmask #define ifr_flags ifr_ifru.ifru_flags #define ifr_metric ifr_ifru.ifru_ivalue #define ifr_mtu ifr_ifru.ifru_mtu #define ifr_map ifr_ifru.ifru_map #define ifr_slave ifr_ifru.ifru_slave #define ifr_data ifr_ifru.ifru_data #define ifr_ifindex ifr_ifru.ifru_ivalue #define ifr_bandwidth ifr_ifru.ifru_ivalue #define ifr_qlen ifr_ifru.ifru_ivalue #define ifr_newname ifr_ifru.ifru_newname #define _IOT_ifreq _IOT(_IOTS(char),IFNAMSIZ,_IOTS(char),16,0,0) #define _IOT_ifreq_short _IOT(_IOTS(char),IFNAMSIZ,_IOTS(short),1,0,0) #define _IOT_ifreq_int _IOT(_IOTS(char),IFNAMSIZ,_IOTS(int),1,0,0) struct ifconf { int ifc_len; union { char *ifcu_buf; struct ifreq *ifcu_req; } ifc_ifcu; }; #define ifc_buf ifc_ifcu.ifcu_buf #define ifc_req ifc_ifcu.ifcu_req #define _IOT_ifconf _IOT(_IOTS(struct ifconf),1,0,0,0,0) #define __UAPI_DEF_IF_IFCONF 0 #define __UAPI_DEF_IF_IFMAP 0 #define __UAPI_DEF_IF_IFNAMSIZ 0 #define __UAPI_DEF_IF_IFREQ 0 #define __UAPI_DEF_IF_NET_DEVICE_FLAGS 0 #define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 0 #endif #ifdef __cplusplus } #endif #endif