diff --git a/Ubiquitous/XiZi/resources/ethernet/netdev/src/Makefile b/Ubiquitous/XiZi/resources/ethernet/netdev/src/Makefile new file mode 100755 index 000000000..bf3fa4082 --- /dev/null +++ b/Ubiquitous/XiZi/resources/ethernet/netdev/src/Makefile @@ -0,0 +1,3 @@ +SRC_FILES := netdev.c netdev_ipaddr.c + +include $(KERNEL_ROOT)/compiler.mk \ No newline at end of file diff --git a/Ubiquitous/XiZi/resources/ethernet/netdev/src/netdev.c b/Ubiquitous/XiZi/resources/ethernet/netdev/src/netdev.c new file mode 100755 index 000000000..6466a8c4e --- /dev/null +++ b/Ubiquitous/XiZi/resources/ethernet/netdev/src/netdev.c @@ -0,0 +1,834 @@ +/* + * Copyright (c) 2006-2022, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2022-03-18 ChenYong First version + */ + +/** +* @file netdev.c +* @brief functions of get device address +* @version 1.0 +* @author AIIT XUOS Lab +* @date 2022-09-15 +*/ + +#include +#include +#include +#include + +#include "../include/netdev_ipaddr.h" +#include "../include/netdev.h" + + +#define DBG_TAG "netdev" +#define DBG_LVL DBG_INFO + + +/* The list of network interface device */ +struct netdev *netdev_list = NULL; +/* The default network interface device */ +struct netdev *netdev_default = NULL; + +/** + * following four functions are basic operations on linked lists + */ +void netdev_slist_init(netdev_slist_t *l) +{ + l->next = NULL; +} + +void netdev_slist_append(netdev_slist_t *l, netdev_slist_t *n) +{ + struct netdev_slist_node *node; + + node = l; + while (node->next) node = node->next; + + /* append the node to the tail */ + node->next = n; + n->next = NULL; +} +netdev_slist_t *netdev_slist_next(netdev_slist_t *n) +{ + return n->next; +} + + +netdev_slist_t *netdev_slist_remove(netdev_slist_t *l, netdev_slist_t *n) +{ + /* remove slist head */ + struct netdev_slist_node *node = l; + while (node->next && node->next != n) node = node->next; + + /* remove node */ + if (node->next != (netdev_slist_t *)0) node->next = node->next->next; + + return l; +} + + + +/** + * This function will register network interface device and + * add it to network interface device list. + * + * @param netdev the network interface device object + * @param name the network interface device name + * @param user_data user-specific data + * + * @return 0: registered successfully + * -1: registered failed + */ + +int netdev_register(struct netdev *netdev, const char *name, void *user_data) +{ + long level; + uint16_t flags_mask; + uint16_t index; + + assert(netdev); + assert(name); + + /* clean network interface device */ + flags_mask = NETDEV_FLAG_UP | NETDEV_FLAG_LINK_UP | NETDEV_FLAG_INTERNET_UP | NETDEV_FLAG_DHCP; + netdev->flags &= ~flags_mask; + + ip_addr_set_zero(&(netdev->ip_addr)); + ip_addr_set_zero(&(netdev->netmask)); + ip_addr_set_zero(&(netdev->gw)); + + IP_SET_TYPE_VAL(netdev->ip_addr, IPADDR_TYPE_V4); + IP_SET_TYPE_VAL(netdev->netmask, IPADDR_TYPE_V4); + IP_SET_TYPE_VAL(netdev->gw, IPADDR_TYPE_V4); +#if NETDEV_IPV6 + for (index = 0; index < NETDEV_IPV6_NUM_ADDRESSES; index++) + { + ip_addr_set_zero(&(netdev->ip6_addr[index])); + IP_SET_TYPE_VAL(netdev->ip_addr, IPADDR_TYPE_V6); + } +#endif /* NETDEV_IPV6 */ + for (index = 0; index < NETDEV_DNS_SERVERS_NUM; index++) + { + ip_addr_set_zero(&(netdev->dns_servers[index])); + IP_SET_TYPE_VAL(netdev->ip_addr, IPADDR_TYPE_V4); + } + netdev->status_callback = NULL; + netdev->addr_callback = NULL; + + if(strlen(name) > NETDEV_NAME_MAX) + { + char netdev_name[NETDEV_NAME_MAX + 1] = {0}; + + strncpy(netdev_name, name, NETDEV_NAME_MAX); + printf("netdev name[%s] length is so long that have been cut into [%s].", name, netdev_name); + } + + /* fill network interface device */ + strncpy(netdev->name, name, NETDEV_NAME_MAX); + netdev->user_data = user_data; + + /* initialize current network interface device single list */ + + + + + netdev_slist_init(&(netdev->list)); + + level = CriticalAreaLock(); + + if (netdev_list == NULL) + { + netdev_list = netdev; + netdev_default = netdev; + } + else + { + /* tail insertion */ + netdev_slist_append(&(netdev_list->list), &(netdev->list)); + } + + CriticalAreaUnLock(level); + + return 0; +} + +/** + * This function will unregister network interface device and + * delete it from network interface device list. + * + * @param netdev the network interface device object + * + * @return 0: unregistered successfully + * -1: unregistered failed + */ +int netdev_unregister(struct netdev *netdev) +{ + long level; + netdev_slist_t *node = NULL; + struct netdev *cur_netdev = NULL; + + assert(netdev); + + if (netdev_list == NULL) + { + return -1; + } + + level = CriticalAreaLock(); + + for (node = &(netdev_list->list); node; node = netdev_slist_next(node)) + { + cur_netdev = netdev_slist_entry(node, struct netdev, list); + if (cur_netdev == netdev) + { + /* find this network interface device in network interface device list */ + if (netdev_list == netdev && netdev_slist_next(&netdev_list->list) == NULL) + { + netdev_list = NULL; + } + else + { + netdev_slist_remove(&(netdev_list->list), &(cur_netdev->list)); + } + if (netdev_default == netdev) + { + netdev_default = netdev_list; + } + break; + } + } + CriticalAreaUnLock(level); + + if (cur_netdev == netdev) + { + + memset(netdev, 0, sizeof(*netdev)); + } + + return -1; +} + +/** + * This function will get the first network interface device + * with the flags in network interface device list. + * + * @param flags the network interface device flags + * + * @return != NULL: network interface device object + * NULL: get failed + */ +struct netdev *netdev_get_first_by_flags(uint16_t flags) +{ + long level; + netdev_slist_t *node = NULL; + struct netdev *netdev = NULL; + + if (netdev_list == NULL) + { + return NULL; + } + + level = CriticalAreaLock(); + + for (node = &(netdev_list->list); node; node = netdev_slist_next(node)) + { + netdev = netdev_slist_entry(node, struct netdev, list); + if (netdev && (netdev->flags & flags) != 0) + { + CriticalAreaUnLock(level); + return netdev; + } + } + + CriticalAreaUnLock(level); + + return NULL; +} + +/** + * This function will get the first network interface device + * in network interface device list by IP address. + * + * @param addr the network interface device IP address + * + * @return != NULL: network interface device object + * NULL: get failed + */ +struct netdev *netdev_get_by_ipaddr(ip_addr_t *ip_addr) +{ + long level; + netdev_slist_t *node = NULL; + struct netdev *netdev = NULL; + + if (netdev_list == NULL) + { + return NULL; + } + + level = CriticalAreaLock(); + + for (node = &(netdev_list->list); node; node = netdev_slist_next(node)) + { + netdev = netdev_slist_entry(node, struct netdev, list); + if (netdev && ip_addr_cmp(&(netdev->ip_addr), ip_addr)) + { + CriticalAreaUnLock(level); + return netdev; + } + } + + CriticalAreaUnLock(level); + + return NULL; +} + +/** + * This function will get network interface device + * in network interface device list by netdev name. + * + * @param name the network interface device name + * + * @return != NULL: network interface device object + * NULL: get failed + */ +struct netdev *netdev_get_by_name(const char *name) +{ + long level; + netdev_slist_t *node = NULL; + struct netdev *netdev = NULL; + + if (netdev_list == NULL) + { + return NULL; + } + + level = CriticalAreaLock(); + + for (node = &(netdev_list->list); node; node = netdev_slist_next(node)) + { + netdev = netdev_slist_entry(node, struct netdev, list); + if (netdev && (strncmp(netdev->name, name, strlen(netdev->name) < NETDEV_NAME_MAX ? strlen(netdev->name) : NETDEV_NAME_MAX) == 0)) + { + CriticalAreaUnLock(level); + return netdev; + } + } + + CriticalAreaUnLock(level); + + return NULL; +} + +/** + * This function will set default network interface device. + * + * @param netdev the network interface device to change + */ +void netdev_set_default(struct netdev *netdev) +{ + if (netdev) + { + netdev_default = netdev; + + if (netdev->ops->set_default) + { + /* set default network interface device in the current network stack */ + netdev->ops->set_default(netdev); + } + printf("Setting default network interface device name(%s) successfully.", netdev->name); + } +} + +/** + * This function will enable network interface device . + * + * @param netdev the network interface device to change + * + * @return 0: set status successfully + * -1: set status failed + */ +int netdev_set_up(struct netdev *netdev) +{ + assert(netdev); + + if (!netdev->ops || !netdev->ops->set_up) + { + printf("The network interface device(%s) not support to set status.", netdev->name); + return -1; + } + + /* network interface device status flags check */ + if (netdev_is_up(netdev)) + { + return 0; + } + + /* execute enable network interface device operations by network interface device driver */ + return netdev->ops->set_up(netdev); +} +/** + * This function will disable network interface device. + * + * @param netdev the network interface device to change + * + * @return 0: set status successfully + * -1: set sttaus failed + */ +int netdev_set_down(struct netdev *netdev) +{ + assert(netdev); + + if (!netdev->ops || !netdev->ops->set_down) + { + printf("The network interface device(%s) not support to set status.", netdev->name); + return -1; + } + + /* network interface device status flags check */ + if (!netdev_is_up(netdev)) + { + return 0; + } + + /* execute disable network interface device operations by network interface driver */ + return netdev->ops->set_down(netdev); +} + +/** + * This function will control network interface device DHCP capability enable or disable. + * + * @param netdev the network interface device device to change + * @param is_enable the new DHCP status + * + * @return 0: set DHCP status successfully + * -1: set DHCP status failed + */ +int netdev_dhcp_enabled(struct netdev *netdev, _Bool is_enabled) +{ + assert(netdev); + + if (!netdev->ops || !netdev->ops->set_dhcp) + { + printf("The network interface device(%s) not support to set DHCP status.", netdev->name); + return -1; + } + + /* network interface device DHCP flags check */ + if (netdev_is_dhcp_enabled(netdev) == is_enabled) + { + return 0; + } + + /* execute network interface device DHCP capability control operations */ + return netdev->ops->set_dhcp(netdev, is_enabled); +} + +/** + * This function will set network interface device IP address. + * + * @param netdev the network interface device to change + * @param ipaddr the new IP address + * + * @return 0: set IP address successfully + * -1: set IP address failed + */ +int netdev_set_ipaddr(struct netdev *netdev, const ip_addr_t *ip_addr) +{ + assert(netdev); + assert(ip_addr); + + if (!netdev->ops || !netdev->ops->set_addr_info) + { + printf("The network interface device(%s) not support to set IP address.", netdev->name); + return -1; + } + + if (netdev_is_dhcp_enabled(netdev)) + { + printf("The network interface device(%s) DHCP capability is enable, not support set IP address.", netdev->name); + return -1; + } + + /* execute network interface device set IP address operations */ + return netdev->ops->set_addr_info(netdev, (ip_addr_t *)ip_addr, NULL, NULL); +} + +/** + * This function will set network interface device netmask address. + * + * @param netdev the network interface device to change + * @param netmask the new netmask address + * + * @return 0: set netmask address successfully + * -1: set netmask address failed + */ +int netdev_set_netmask(struct netdev *netdev, const ip_addr_t *netmask) +{ + assert(netdev); + assert(netmask); + + if (!netdev->ops || !netdev->ops->set_addr_info) + { + printf("The network interface device(%s) not support to set netmask address.", netdev->name); + return -1; + } + + if (netdev_is_dhcp_enabled(netdev)) + { + printf("The network interface device(%s) DHCP capability is enable, not support set netmask address.", netdev->name); + return -1; + } + + /* execute network interface device set netmask address operations */ + return netdev->ops->set_addr_info(netdev, NULL, (ip_addr_t *)netmask, NULL); +} + +/** + * This function will set network interface device gateway address. + * + * @param netdev the network interface device to change + * @param gateway the new gateway address + * + * @return 0: set gateway address successfully + * -1: set gateway address failed + */ +int netdev_set_gw(struct netdev *netdev, const ip_addr_t *gw) +{ + assert(netdev); + assert(gw); + + if (!netdev->ops || !netdev->ops->set_addr_info) + { + printf("The network interface device(%s) not support to set gateway address.", netdev->name); + return -1; + } + + if (netdev_is_dhcp_enabled(netdev)) + { + printf("The network interface device(%s) DHCP capability is enable, not support set gateway address.", netdev->name); + return -1; + } + + /* execute network interface device set gateway address operations */ + return netdev->ops->set_addr_info(netdev, NULL, NULL, (ip_addr_t *)gw); +} + +/** + * This function will set network interface device DNS server address. + * + * @param netdev the network interface device to change + * @param dns_server the new DNS server address + * + * @return 0: set netmask address successfully + * -1: set netmask address failed + */ +int netdev_set_dns_server(struct netdev *netdev, uint8_t dns_num, const ip_addr_t *dns_server) +{ + assert(netdev); + assert(dns_server); + + if (dns_num >= NETDEV_DNS_SERVERS_NUM) + { + printf("The number of DNS servers(%d) set exceeds the maximum number(%d).", dns_num + 1, NETDEV_DNS_SERVERS_NUM); + return -1; + } + + if (!netdev->ops || !netdev->ops->set_dns_server) + { + printf("The network interface device(%s) not support to set DNS server address.", netdev->name); + return -1; + } + + /* execute network interface device set DNS server address operations */ + return netdev->ops->set_dns_server(netdev, dns_num, (ip_addr_t *)dns_server); +} + +/** + * This function will set callback to be called when the network interface device status has been changed. + * + * @param netdev the network interface device to change + * @param status_callback the callback be called when the status has been changed. + */ +void netdev_set_status_callback(struct netdev *netdev, netdev_callback_fn status_callback) +{ + assert(netdev); + assert(status_callback); + + netdev->status_callback = status_callback; +} + +/** + * This function will set callback to be called when the network interface device address has been changed. + * + * @param netdev the network interface device to change + * @param addr_callback the callback be called when the address has been changed. + */ +void netdev_set_addr_callback(struct netdev *netdev, netdev_callback_fn addr_callback) +{ + assert(netdev); + assert(addr_callback); + + netdev->addr_callback = addr_callback; +} + + +/** + * This function will set network interface device IP address. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param ipaddr the new IP address + */ +void netdev_low_level_set_ipaddr(struct netdev *netdev, const ip_addr_t *ip_addr) +{ + assert(ip_addr); + + if (netdev && ip_addr_cmp(&(netdev->ip_addr), ip_addr) == 0) + { + ip_addr_copy(netdev->ip_addr, *ip_addr); + + + + /* execute IP address change callback function */ + if (netdev->addr_callback) + { + netdev->addr_callback(netdev, NETDEV_CB_ADDR_IP); + } + } +} + +/** + * This function will set network interface device netmask address. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param netmask the new netmask address + */ +void netdev_low_level_set_netmask(struct netdev *netdev, const ip_addr_t *netmask) +{ + assert(netmask); + + if (netdev && ip_addr_cmp(&(netdev->netmask), netmask) == 0) + { + ip_addr_copy(netdev->netmask, *netmask); + + /* execute netmask address change callback function */ + if (netdev->addr_callback) + { + netdev->addr_callback(netdev, NETDEV_CB_ADDR_NETMASK); + } + } +} + +/** + * This function will set network interface device gateway address. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param gateway the new gateway address + */ +void netdev_low_level_set_gw(struct netdev *netdev, const ip_addr_t *gw) +{ + assert(gw); + + if (netdev && ip_addr_cmp(&(netdev->gw), gw) == 0) + { + ip_addr_copy(netdev->gw, *gw); + + + + /* execute gateway address change callback function */ + if (netdev->addr_callback) + { + netdev->addr_callback(netdev, NETDEV_CB_ADDR_GATEWAY); + } + } +} + +/** + * This function will set network interface device DNS server address. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param dns_server the new DNS server address + * + */ +void netdev_low_level_set_dns_server(struct netdev *netdev, uint8_t dns_num, const ip_addr_t *dns_server) +{ + unsigned int index; + + assert(dns_server); + + if (netdev == NULL) + { + return; + } + /* check DNS servers is exist */ + for (index = 0; index < NETDEV_DNS_SERVERS_NUM; index++) + { + if (ip_addr_cmp(&(netdev->dns_servers[index]), dns_server)) + { + return; + } + } + + if (dns_num < NETDEV_DNS_SERVERS_NUM) + { + ip_addr_copy(netdev->dns_servers[dns_num], *dns_server); + + /* execute DNS servers address change callback function */ + if (netdev->addr_callback) + { + netdev->addr_callback(netdev, NETDEV_CB_ADDR_DNS_SERVER); + } + } +} + +#ifdef NETDEV_USING_AUTO_DEFAULT +/* Change to the first link_up network interface device automatically */ +static void netdev_auto_change_default(struct netdev *netdev) +{ + struct netdev *new_netdev = NULL; + + if (memcmp(netdev, netdev_default, sizeof(struct netdev)) == 0) + { + new_netdev = netdev_get_first_by_flags(NETDEV_FLAG_LINK_UP); + if (new_netdev) + { + netdev_set_default(new_netdev); + } + } +} +#endif /* NETDEV_USING_AUTO_DEFAULT */ + +/** + * This function will set network interface device status. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param is_up the new status + */ +void netdev_low_level_set_status(struct netdev *netdev, _Bool is_up) +{ + if (netdev && netdev_is_up(netdev) != is_up) + { + if (is_up) + { + netdev->flags |= NETDEV_FLAG_UP; + } + else + { + netdev->flags &= ~NETDEV_FLAG_UP; + +#ifdef NETDEV_USING_AUTO_DEFAULT + /* change to the first link_up network interface device automatically */ + netdev_auto_change_default(netdev); +#endif /* NETDEV_USING_AUTO_DEFAULT */ + } + + /* execute network interface device status change callback function */ + if (netdev->status_callback) + { + netdev->status_callback(netdev, is_up ? NETDEV_CB_STATUS_UP : NETDEV_CB_STATUS_DOWN); + } + } +} + +/** + * This function will set network interface device active link status. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param is_up the new link status + */ +void netdev_low_level_set_link_status(struct netdev *netdev, _Bool is_up) +{ + if (netdev && netdev_is_link_up(netdev) != is_up) + { + if (is_up) + { + netdev->flags |= NETDEV_FLAG_LINK_UP; + + + } + else + { + netdev->flags &= ~NETDEV_FLAG_LINK_UP; + + /* set network interface device flags to internet down */ + netdev->flags &= ~NETDEV_FLAG_INTERNET_UP; + +#ifdef NETDEV_USING_AUTO_DEFAULT + /* change to the first link_up network interface device automatically */ + netdev_auto_change_default(netdev); +#endif /* NETDEV_USING_AUTO_DEFAULT */ + } + + /* execute link status change callback function */ + if (netdev->status_callback) + { + netdev->status_callback(netdev, is_up ? NETDEV_CB_STATUS_LINK_UP : NETDEV_CB_STATUS_LINK_DOWN); + } + } +} + +/** + * This function will set network interface device active internet status. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param is_up the new internet status + */ +void netdev_low_level_set_internet_status(struct netdev *netdev, _Bool is_up) +{ + if (netdev && netdev_is_internet_up(netdev) != is_up) + { + if (is_up) + { + netdev->flags |= NETDEV_FLAG_INTERNET_UP; + } + else + { + netdev->flags &= ~NETDEV_FLAG_INTERNET_UP; + } + + /* execute network interface device status change callback function */ + if (netdev->status_callback) + { + netdev->status_callback(netdev, is_up ? NETDEV_CB_STATUS_INTERNET_UP : NETDEV_CB_STATUS_INTERNET_DOWN); + } + } +} + +/** + * This function will set network interface device DHCP status. + * @NOTE it can only be called in the network interface device driver. + * + * @param netdev the network interface device to change + * @param is_up the new DHCP status + */ +void netdev_low_level_set_dhcp_status(struct netdev *netdev, _Bool is_enable) +{ + if (netdev && netdev_is_dhcp_enabled(netdev) != is_enable) + { + if (is_enable) + { + netdev->flags |= NETDEV_FLAG_DHCP; + } + else + { + netdev->flags &= ~NETDEV_FLAG_DHCP; + } + + /* execute DHCP status change callback function */ + if (netdev->status_callback) + { + netdev->status_callback(netdev, is_enable ? NETDEV_CB_STATUS_DHCP_ENABLE : NETDEV_CB_STATUS_DHCP_DISABLE); + } + } +} \ No newline at end of file diff --git a/Ubiquitous/XiZi/resources/ethernet/netdev/src/netdev_ipaddr.c b/Ubiquitous/XiZi/resources/ethernet/netdev/src/netdev_ipaddr.c new file mode 100755 index 000000000..35b38def8 --- /dev/null +++ b/Ubiquitous/XiZi/resources/ethernet/netdev/src/netdev_ipaddr.c @@ -0,0 +1,626 @@ +/* + * Copyright (c) 2006-2021, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2018-05-18 ChenYong First version + */ + +/** +* @file netdev_ipaddr.c +* @brief functions of get device address +* @version 1.0 +* @author AIIT XUOS Lab +* @date 2022-09-15 +*/ + + +#include +#include +#include +#include + + +/* Here for now until needed in other places in lwIP */ +#ifndef isprint +#define in_range(c, lo, up) ((uint8_t)c >= lo && (uint8_t)c <= up) +#define isprint(c) in_range(c, 0x20, 0x7f) +#define isdigit(c) in_range(c, '0', '9') +#define isxdigit(c) (isdigit(c) || in_range(c, 'a', 'f') || in_range(c, 'A', 'F')) +#define islower(c) in_range(c, 'a', 'z') +#define isspace(c) (c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v') +#define xchar(i) ((i) < 10 ? '0' + (i) : 'A' + (i) - 10) +#endif + +#if NETDEV_IPV4 + +/** + * Check whether "cp" is a valid ascii representation + * of an Internet address and convert to a binary address. + * Returns 1 if the address is valid, 0 if not. + * This replaces inet_addr, the return value from which + * cannot distinguish between failure and a local broadcast address. + * + * @param cp IP address in ascii representation (e.g. "127.0.0.1") + * @param addr pointer to which to save the ip address in network order + * @return 1 if cp could be converted to addr, 0 on failure + */ +int netdev_ip4addr_aton(const char *cp, ip4_addr_t *addr) +{ + uint32_t val; + uint8_t base; + char c; + uint32_t parts[4]; + uint32_t *pp = parts; + + c = *cp; + for (;;) + { + /* + * Collect number up to ``.''. + * Values are specified as for C: + * 0x=hex, 0=octal, 1-9=decimal. + */ + if (!isdigit(c)) + { + return 0; + } + val = 0; + base = 10; + if (c == '0') + { + c = *++cp; + if (c == 'x' || c == 'X') + { + base = 16; + c = *++cp; + } + else + { + base = 8; + } + } + for (;;) + { + if (isdigit(c)) + { + val = (val * base) + (uint32_t) (c - '0'); + c = *++cp; + } + else if (base == 16 && isxdigit(c)) + { + val = (val << 4) | (uint32_t) (c + 10 - (islower(c) ? 'a' : 'A')); + c = *++cp; + } + else + { + break; + } + } + if (c == '.') + { + /* + * Internet format: + * a.b.c.d + * a.b.c (with c treated as 16 bits) + * a.b (with b treated as 24 bits) + */ + if (pp >= parts + 3) + { + return 0; + } + *pp++ = val; + c = *++cp; + } + else + { + break; + } + } + /* + * Check for trailing characters. + */ + if (c != '\0' && !isspace(c)) + { + return 0; + } + /* + * Concoct the address according to + * the number of parts specified. + */ + switch (pp - parts + 1) + { + + case 0: + return 0; /* initial nondigit */ + + case 1: /* a -- 32 bits */ + break; + + case 2: /* a.b -- 8.24 bits */ + if (val > 0xffffffUL) + { + return 0; + } + if (parts[0] > 0xff) + { + return 0; + } + val |= parts[0] << 24; + break; + + case 3: /* a.b.c -- 8.8.16 bits */ + if (val > 0xffff) + { + return 0; + } + if ((parts[0] > 0xff) || (parts[1] > 0xff)) + { + return 0; + } + val |= (parts[0] << 24) | (parts[1] << 16); + break; + + case 4: /* a.b.c.d -- 8.8.8.8 bits */ + if (val > 0xff) + { + return 0; + } + if ((parts[0] > 0xff) || (parts[1] > 0xff) || (parts[2] > 0xff)) + { + return 0; + } + val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); + break; + default: + assert(0); + break; + } + if (addr) + { + ip4_addr_set_u32(addr, htonl(val)); + } + return 1; +} + +/** + * Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used. + * + * @param addr ip address in network order to convert + * @param buf target buffer where the string is stored + * @param buflen length of buf + * @return either pointer to buf which now holds the ASCII + * representation of addr or NULL if buf was too small + */ +char *netdev_ip4addr_ntoa_r(const ip4_addr_t *addr, char *buf, int buflen) +{ + uint32_t s_addr; + char inv[3]; + char *rp; + uint8_t *ap; + uint8_t rem; + uint8_t n; + uint8_t i; + int len = 0; + + s_addr = ip4_addr_get_u32(addr); + + rp = buf; + ap = (uint8_t *) &s_addr; + for (n = 0; n < 4; n++) + { + i = 0; + do + { + rem = *ap % (uint8_t) 10; + *ap /= (uint8_t) 10; + inv[i++] = (char) ('0' + rem); + } while (*ap); + while (i--) + { + if (len++ >= buflen) + { + return NULL; + } + *rp++ = inv[i]; + } + if (len++ >= buflen) + { + return NULL; + } + *rp++ = '.'; + ap++; + } + *--rp = 0; + return buf; +} + + +/** + * Convert numeric IP address into decimal dotted ASCII representation. + * returns ptr to static buffer; not reentrant! + * + * @param addr ip address in network order to convert + * @return pointer to a global static (!) buffer that holds the ASCII + * representation of addr + */ +char *netdev_ip4addr_ntoa(const ip4_addr_t *addr) +{ + static char str[IP4ADDR_STRLEN_MAX]; + return netdev_ip4addr_ntoa_r(addr, str, IP4ADDR_STRLEN_MAX); +} + + +/** + * Ascii internet address interpretation routine. + * The value returned is in network order. + * + * @param cp IP address in ascii representation (e.g. "127.0.0.1") + * @return ip address in network order + */ +in_addr_t netdev_ipaddr_addr(const char *cp) +{ + ip4_addr_t val; + + if (netdev_ip4addr_aton(cp, &val)) { + return ip4_addr_get_u32(&val); + } + return (IPADDR_NONE); +} + +#endif /* NETDEV_IPV4 */ + + +#if NETDEV_IPV6 + +const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT; + +/** + * Check whether "cp" is a valid ascii representation + * of an IPv6 address and convert to a binary address. + * Returns 1 if the address is valid, 0 if not. + * + * @param cp IPv6 address in ascii representation (e.g. "FF01::1") + * @param addr pointer to which to save the ip address in network order + * @return 1 if cp could be converted to addr, 0 on failure + */ +int +netdev_ip6addr_aton(const char *cp, ip6_addr_t *addr) +{ + uint32_t addr_index, zero_blocks, current_block_index, current_block_value; + const char *s; + + /* Count the number of colons, to count the number of blocks in a "::" sequence + zero_blocks may be 1 even if there are no :: sequences */ + zero_blocks = 8; + for (s = cp; *s != 0; s++) + { + if (*s == ':') + { + zero_blocks--; + } + else if (!isxdigit(*s)) + { + break; + } + } + + /* parse each block */ + addr_index = 0; + current_block_index = 0; + current_block_value = 0; + for (s = cp; *s != 0; s++) + { + if (*s == ':') + { + if (addr) + { + if (current_block_index & 0x1) + { + addr->addr[addr_index++] |= current_block_value; + } + else + { + addr->addr[addr_index] = current_block_value << 16; + } + } + current_block_index++; + current_block_value = 0; + if (current_block_index > 7) + { + /* address too long! */ + return 0; + } + if (s[1] == ':') + { + if (s[2] == ':') + { + /* invalid format: three successive colons */ + return 0; + } + s++; + /* "::" found, set zeros */ + while (zero_blocks > 0) + { + zero_blocks--; + if (current_block_index & 0x1) + { + addr_index++; + } + else + { + if (addr) + { + addr->addr[addr_index] = 0; + } + } + current_block_index++; + if (current_block_index > 7) + { + /* address too long! */ + return 0; + } + } + } + } + else if (isxdigit(*s)) + { + /* add current digit */ + current_block_value = (current_block_value << 4) + + (isdigit(*s) ? (uint32_t)(*s - '0') : (uint32_t)(10 + (islower(*s) ? *s - 'a' : *s - 'A'))); + } + else + { + /* unexpected digit, space? CRLF? */ + break; + } + } + + if (addr) + { + if (current_block_index & 0x1) + { + addr->addr[addr_index++] |= current_block_value; + } + else + { + addr->addr[addr_index] = current_block_value << 16; + } + } + + /* convert to network byte order. */ + if (addr) + { + for (addr_index = 0; addr_index < 4; addr_index++) + { + addr->addr[addr_index] = htonl(addr->addr[addr_index]); + } + } + + if (current_block_index != 7) + { + return 0; + } + + return 1; +} + +/** + * Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used. + * + * @param addr ip6 address in network order to convert + * @param buf target buffer where the string is stored + * @param buflen length of buf + * @return either pointer to buf which now holds the ASCII + * representation of addr or NULL if buf was too small + */ +char * +netdev_ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen) +{ + uint32_t current_block_index, current_block_value, next_block_value; + int32_t i; + uint8_t zero_flag, empty_block_flag; + + i = 0; + empty_block_flag = 0; /* used to indicate a zero chain for "::' */ + + for (current_block_index = 0; current_block_index < 8; current_block_index++) + { + /* get the current 16-bit block */ + current_block_value = htonl(addr->addr[current_block_index >> 1]); + if ((current_block_index & 0x1) == 0) + { + current_block_value = current_block_value >> 16; + } + current_block_value &= 0xffff; + + /* Check for empty block. */ + if (current_block_value == 0) + { + if (current_block_index == 7 && empty_block_flag == 1) + { + /* special case, we must render a ':' for the last block. */ + buf[i++] = ':'; + if (i >= buflen) + { + return NULL; + } + break; + } + if (empty_block_flag == 0) + { + /* generate empty block "::", but only if more than one contiguous zero block, + * according to current formatting suggestions RFC 5952. */ + next_block_value = htonl(addr->addr[(current_block_index + 1) >> 1]); + if ((current_block_index & 0x1) == 0x01) + { + next_block_value = next_block_value >> 16; + } + next_block_value &= 0xffff; + if (next_block_value == 0) + { + empty_block_flag = 1; + buf[i++] = ':'; + if (i >= buflen) + { + return NULL; + } + continue; /* move on to next block. */ + } + } + else if (empty_block_flag == 1) + { + /* move on to next block. */ + continue; + } + } + else if (empty_block_flag == 1) + { + /* Set this flag value so we don't produce multiple empty blocks. */ + empty_block_flag = 2; + } + + if (current_block_index > 0) + { + buf[i++] = ':'; + if (i >= buflen) + { + return NULL; + } + } + + if ((current_block_value & 0xf000) == 0) + { + zero_flag = 1; + } + else + { + buf[i++] = xchar(((current_block_value & 0xf000) >> 12)); + zero_flag = 0; + if (i >= buflen) + { + return NULL; + } + } + + if (((current_block_value & 0xf00) == 0) && (zero_flag)) + { + /* do nothing */ + } + else + { + buf[i++] = xchar(((current_block_value & 0xf00) >> 8)); + zero_flag = 0; + if (i >= buflen) + { + return NULL; + } + } + + if (((current_block_value & 0xf0) == 0) && (zero_flag)) + { + /* do nothing */ + } + else + { + buf[i++] = xchar(((current_block_value & 0xf0) >> 4)); + zero_flag = 0; + if (i >= buflen) + { + return NULL; + } + } + + buf[i++] = xchar((current_block_value & 0xf)); + if (i >= buflen) + { + return NULL; + } + } + + buf[i] = 0; + + return buf; +} + +/** + * Convert numeric IPv6 address into ASCII representation. + * returns ptr to static buffer; not reentrant! + * + * @param addr ip6 address in network order to convert + * @return pointer to a global static (!) buffer that holds the ASCII + * representation of addr + */ +char * +netdev_ip6addr_ntoa(const ip6_addr_t *addr) +{ + static char str[40]; + return netdev_ip6addr_ntoa_r(addr, str, 40); +} + +#endif /* NETDEV_IPV6 */ + +const char * +netdev_inet_ntop(int af, const void *src, char *dst, int32_t size) +{ +#define AF_INET 2 +//#define AF_INET6 10 + + const char *ret = NULL; + int size_int = (int)size; + if (size_int < 0) + { + return NULL; + } + switch (af) + { +#if NETDEV_IPV4 + case AF_INET: + return netdev_ip4addr_ntoa_r((const ip4_addr_t *)src, dst, size_int); +#endif +#if NETDEV_IPV6 + case AF_INET6: + return netdev_ip6addr_ntoa_r((const ip6_addr_t *)src, dst, size_int); +#endif + default: + break; + } + return ret; +} + +int +netdev_inet_pton(int af, const char *src, void *dst) +{ +#define AF_INET 2 +//#define AF_INET6 10 + + int err; + switch (af) + { +#if NETDEV_IPV4 + case AF_INET: + err = netdev_ip4addr_aton(src, (ip4_addr_t *)dst); + break; +#endif +#if NETDEV_IPV6 + case AF_INET6: + { + /* convert into temporary variable since ip6_addr_t might be larger + than in6_addr when scopes are enabled */ + ip6_addr_t addr; + err = netdev_ip6addr_aton(src, &addr); + if (err) + { + memcpy(dst, &addr.addr, sizeof(addr.addr)); + } + break; + } +#endif + default: + err = -1; + break; + } + return err; +}