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Cleanup

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This commit is contained in:
Joseph Henry
2018-02-07 15:10:38 -08:00
parent de3fc72ba0
commit b0ac457ff1
3 changed files with 247 additions and 317 deletions
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254
include/libztDefs.h
View File

@@ -48,35 +48,22 @@
#define STACK_LWIP 1
#define STACK_PICO 0
#define NO_STACK 0 // for layer-2 only (this will omit all userspace network stack code)
/* The following three quantities are related and govern how incoming frames are fed into the
network stack's core:
Every LWIP_GUARDED_BUF_CHECK_INTERVAL milliseconds, a callback will be called from the core and
will input a maximum of LWIP_FRAMES_HANDLED_PER_CORE_CALL frames before returning control back
to the core. Meanwhile, incoming frames from the ZeroTier wire will be allocated and their
pointers will be cached in the receive frame buffer of the size LWIP_MAX_GUARDED_RX_BUF_SZ to
await the next callback from the core */
#define LWIP_GUARDED_BUF_CHECK_INTERVAL 50 // in ms
#define LWIP_MAX_GUARDED_RX_BUF_SZ 1024 // number of frame pointers that can be cached waiting for receipt into core
#define LWIP_FRAMES_HANDLED_PER_CORE_CALL 16
#define NO_STACK 0 // for layer-2 only (this will omit all userspace network stack code)
/* sanity checks for userspace network stack and socket API layer choices
EX.
zts_socket()
1. ) ZT_VIRTUAL_SOCKET? -> virt_socket() --- Choose this if the default socket layer isn't doing what you need
STACK_LWIP? -> raw lwip_ API
STACK_PICO? -> raw pico_ API
otherStack? -> raw API
1. ) ZT_VIRTUAL_SOCKET? -> virt_socket() --- Choose this if the default socket layer isn't doing what you need
STACK_LWIP? -> raw lwip_ API
STACK_PICO? -> raw pico_ API
otherStack? -> raw API
2.) ZT_LWIP_SEQ_SOCKET? (default) -> lwip_socket() --- currently provides greatest safety and performance
3.) ZT_PICO_BSD_SOCKET? -> pico_ socket API
otherStack? -> other_stack_socket()
2.) ZT_LWIP_SEQ_SOCKET? (default) -> lwip_socket() --- currently provides greatest safety and performance
3.) ZT_PICO_BSD_SOCKET? -> pico_ socket API
otherStack? -> other_stack_socket()
Default is: STACK_LWIP=1 ZT_LWIP_SEQ_SOCKET=1
Default is: STACK_LWIP=1 ZT_LWIP_SEQ_SOCKET=1
*/
@@ -100,48 +87,44 @@ await the next callback from the core */
#endif
#if STACK_LWIP==1
#undef STACK_PICO
#undef NO_STACK
#undef STACK_PICO
#undef NO_STACK
#endif
#if STACK_PICO==1
#undef STACK_LWIP
#undef NO_STACK
#undef STACK_LWIP
#undef NO_STACK
#endif
#if NO_STACK==1
#undef STACK_LWIP
#undef STACK_PICO
#undef STACK_LWIP
#undef STACK_PICO
#endif
#if ZT_VIRTUAL_SOCKET==1
#undef ZT_LWIP_SEQ_SOCKET
#undef ZT_PICO_BSD_SOCKET
#undef ZT_LWIP_SEQ_SOCKET
#undef ZT_PICO_BSD_SOCKET
#endif
#if ZT_LWIP_SEQ_SOCKET==1
#undef ZT_VIRTUAL_SOCKET
#undef ZT_PICO_BSD_SOCKET
#undef ZT_VIRTUAL_SOCKET
#undef ZT_PICO_BSD_SOCKET
#endif
#if ZT_PICO_BSD_SOCKET==1
#undef ZT_VIRTUAL_SOCKET
#undef ZT_LWIP_SEQ_SOCKET
#undef ZT_VIRTUAL_SOCKET
#undef ZT_LWIP_SEQ_SOCKET
#endif
/**
* Maximum MTU size for ZeroTier
*/
#define ZT_MAX_MTU 10000
#define ZT_MAX_MTU 10000
/**
* How fast service states are re-checked (in milliseconds)
*/
#define ZTO_WRAPPER_CHECK_INTERVAL 100
#define ZTO_WRAPPER_CHECK_INTERVAL 100
/**
* Length of buffer required to hold a ztAddress/nodeID
*/
#define ZTO_ID_LEN 16
//#if !defined(__WIN32__)
//typedef unsigned int socklen_t;
//#endif
#define ZTO_ID_LEN 16
#if defined(_MSC_VER)
#include <BaseTsd.h>
@@ -151,8 +134,8 @@ typedef SSIZE_T ssize_t;
/****************************************************************************/
/* For SOCK_RAW support, it will initially be modeled after linux's API, so */
/* below are the various things we need to define in order to make this API */
/* work on other platforms. Mayber later down the road we will customize */
/* this for each different platform. Maybe. */
/* work on other platforms. Mayber later down the road we will customize */
/* this for each different platform. Maybe. */
/****************************************************************************/
#if !defined(__linux__)
@@ -162,115 +145,67 @@ typedef SSIZE_T ssize_t;
// Normally defined in linux/if_packet.h, defined here so we can offer a linux-like
// raw socket API on non-linux platforms
struct sockaddr_ll {
unsigned short sll_family; /* Always AF_PACKET */
unsigned short sll_protocol; /* Physical layer protocol */
int sll_ifindex; /* Interface number */
unsigned short sll_hatype; /* ARP hardware type */
unsigned char sll_pkttype; /* Packet type */
unsigned char sll_halen; /* Length of address */
unsigned char sll_addr[8]; /* Physical layer address */
unsigned short sll_family; /* Always AF_PACKET */
unsigned short sll_protocol; /* Physical layer protocol */
int sll_ifindex; /* Interface number */
unsigned short sll_hatype; /* ARP hardware type */
unsigned char sll_pkttype; /* Packet type */
unsigned char sll_halen; /* Length of address */
unsigned char sll_addr[8]; /* Physical layer address */
};
#endif
/*
// Provide missing optnames for setsockopt() implementations
#ifdef _WIN32
#ifdef _WIN64
#else
#endif
#elif __APPLE__
#define IP_BIND_ADDRESS_NO_PORT 201
#define IP_FREEBIND 202
#define IP_MTU 203
#define IP_MTU_DISCOVER 204
#define IP_MULTICAST_ALL 205
#define IP_NODEFRAG 206
#define IP_RECVORIGDSTADDR 207
#define IP_ROUTER_ALERT 208
#define IP_TRANSPARENT 209
#define TCP_INFO 210
#define SO_STYLE 100
#define TCP_CORK 101
#define TCP_DEFER_ACCEPT 102
//#ifndef TCP_KEEPIDLE
//#define TCP_KEEPIDLE 103
//#endif
#define TCP_LINGER2 104
#define TCP_QUICKACK 105
#define TCP_SYNCNT 106
#define TCP_WINDOW_CLAMP 107
#define UDP_CORK 108
#elif __linux__
#define SO_STYLE 100
#define UDP_CORK 101
#define IP_BIND_ADDRESS_NO_PORT 201
#define IP_NODEFRAG 206
#elif __unix__
#elif defined(_POSIX_VERSION)
#else
# error "Unknown platform"
#endif
*/
/****************************************************************************/
/* Legend */
/****************************************************************************/
/*
NSLWIP network_stack_lwip
NSPICO network_stack_pico
NSRXBF network_stack_pico guarded frame buffer RX
ZTVIRT zt_virtual_wire
APPFDS app_fd
VSRXBF app_fd TX buf
VSTXBF app_fd RX buf
*/
/****************************************************************************/
/* lwIP */
/****************************************************************************/
#define LWIP_NETIF_STATUS_CALLBACK 0
// For LWIP configuration see: include/lwipopts.h
#if defined(STACK_LWIP)
/* The following three quantities are related and govern how incoming frames are fed into the
network stack's core:
Every LWIP_GUARDED_BUF_CHECK_INTERVAL milliseconds, a callback will be called from the core and
will input a maximum of LWIP_FRAMES_HANDLED_PER_CORE_CALL frames before returning control back
to the core. Meanwhile, incoming frames from the ZeroTier wire will be allocated and their
pointers will be cached in the receive frame buffer of the size LWIP_MAX_GUARDED_RX_BUF_SZ to
await the next callback from the core */
#define LWIP_GUARDED_BUF_CHECK_INTERVAL 50 // in ms
#define LWIP_MAX_GUARDED_RX_BUF_SZ 1024 // number of frame pointers that can be cached waiting for receipt into core
#define LWIP_FRAMES_HANDLED_PER_CORE_CALL 16 // How many frames are handled per call from core
#define LWIP_NETIF_STATUS_CALLBACK 0
typedef signed char err_t;
#define ND6_DISCOVERY_INTERVAL 1000
#define ARP_DISCOVERY_INTERVAL ARP_TMR_INTERVAL
/**
Specifies the polling interval and the callback function that should
be called to poll the application. The interval is specified in
number of TCP coarse grained timer shots, which typically occurs
twice a second. An interval of 10 means that the application would
be polled every 5 seconds. (only for raw lwIP driver)
*/
#define LWIP_APPLICATION_POLL_FREQ 2
* Specifies the polling interval and the callback function that should
* be called to poll the application. The interval is specified in
* number of TCP coarse grained timer shots, which typically occurs
* twice a second. An interval of 10 means that the application would
* be polled every 5 seconds. (only for raw lwIP driver)
*/
#define LWIP_APPLICATION_POLL_FREQ 2
/**
* TCP timer interval in milliseconds (only for raw lwIP driver)
*/
#define LWIP_TCP_TIMER_INTERVAL 25
#define LWIP_TCP_TIMER_INTERVAL 25
/**
* How often we check VirtualSocket statuses in milliseconds (only for raw lwIP driver)
*/
#define LWIP_STATUS_TMR_INTERVAL 500
#define LWIP_STATUS_TMR_INTERVAL 500
// #define LWIP_CHKSUM <your_checksum_routine>, See: RFC1071 for inspiration
#endif
/****************************************************************************/
/* picoTCP */
/****************************************************************************/
#if defined(STACK_PICO)
#endif
/****************************************************************************/
/* Defines */
/****************************************************************************/
@@ -278,141 +213,140 @@ typedef signed char err_t;
/**
* Maximum number of sockets that libzt can administer
*/
#define ZT_MAX_SOCKETS 1024
#define ZT_MAX_SOCKETS 1024
/**
* Maximum MTU size for libzt (must be less than or equal to ZT_MAX_MTU)
*/
#define ZT_SDK_MTU ZT_MAX_MTU
#define ZT_SDK_MTU ZT_MAX_MTU
/**
*
*/
#define ZT_LEN_SZ 4
#define ZT_LEN_SZ 4
/**
*
*/
#define ZT_ADDR_SZ 128
#define ZT_ADDR_SZ 128
/**
* Size of message buffer for VirtualSockets
*/
#define ZT_SOCKET_MSG_BUF_SZ ZT_SDK_MTU + ZT_LEN_SZ + ZT_ADDR_SZ
#define ZT_SOCKET_MSG_BUF_SZ ZT_SDK_MTU + ZT_LEN_SZ + ZT_ADDR_SZ
/**
* Polling interval (in ms) for file descriptors wrapped in the Phy I/O loop (for raw drivers only)
*/
#define ZT_PHY_POLL_INTERVAL 5
#define ZT_PHY_POLL_INTERVAL 5
/**
* State check interval (in ms) for VirtualSocket state
*/
#define ZT_ACCEPT_RECHECK_DELAY 50
#define ZT_ACCEPT_RECHECK_DELAY 50
/**
* State check interval (in ms) for VirtualSocket state
*/
#define ZT_CONNECT_RECHECK_DELAY 50
#define ZT_CONNECT_RECHECK_DELAY 50
/**
* State check interval (in ms) for VirtualSocket state
*/
#define ZT_API_CHECK_INTERVAL 50
#define ZT_API_CHECK_INTERVAL 50
/**
* Maximum size of guarded RX buffer (for picoTCP raw driver only)
*/
#define MAX_PICO_FRAME_RX_BUF_SZ ZT_MAX_MTU * 128
#define MAX_PICO_FRAME_RX_BUF_SZ ZT_MAX_MTU * 128
/**
* Size of TCP TX buffer for VirtualSockets used in raw network stack drivers
*/
#define ZT_TCP_TX_BUF_SZ 1024 * 1024 * 128
#define ZT_TCP_TX_BUF_SZ 1024 * 1024 * 128
/**
* Size of TCP RX buffer for VirtualSockets used in raw network stack drivers
*/
#define ZT_TCP_RX_BUF_SZ 1024 * 1024 * 128
#define ZT_TCP_RX_BUF_SZ 1024 * 1024 * 128
/**
* Size of UDP TX buffer for VirtualSockets used in raw network stack drivers
*/
#define ZT_UDP_TX_BUF_SZ ZT_MAX_MTU
#define ZT_UDP_TX_BUF_SZ ZT_MAX_MTU
/**
* Size of UDP RX buffer for VirtualSockets used in raw network stack drivers
*/
#define ZT_UDP_RX_BUF_SZ ZT_MAX_MTU * 10
// Send and Receive buffer sizes for the network stack
// By default picoTCP sets them to 16834, this is good for embedded-scale
// stuff but you might want to consider higher values for desktop and mobile
// applications.
#define ZT_UDP_RX_BUF_SZ ZT_MAX_MTU * 10
/**
*
* Send buffer size for the network stack
* By default picoTCP sets them to 16834, this is good for embedded-scale
* stuff but you might want to consider higher values for desktop and mobile
* applications.
*/
#define ZT_STACK_TCP_SOCKET_TX_SZ ZT_TCP_TX_BUF_SZ
#define ZT_STACK_TCP_SOCKET_TX_SZ ZT_TCP_TX_BUF_SZ
/**
*
* Receive buffer size for the network stack
* By default picoTCP sets them to 16834, this is good for embedded-scale
* stuff but you might want to consider higher values for desktop and mobile
* applications.
*/
#define ZT_STACK_TCP_SOCKET_RX_SZ ZT_TCP_RX_BUF_SZ
// Maximum size we're allowed to read or write from a stack socket
// This is put in place because picoTCP seems to fail at higher values.
// If you use another stack you can probably bump this up a bit.
#define ZT_STACK_TCP_SOCKET_RX_SZ ZT_TCP_RX_BUF_SZ
/**
* Maximum size of write operation to a network stack
* Maximum size we're allowed to read or write from a stack socket
* This is put in place because picoTCP seems to fail at higher values.
* If you use another stack you can probably bump this up a bit.
*/
#define ZT_STACK_SOCKET_WR_MAX 4096
#define ZT_STACK_SOCKET_WR_MAX 4096
/**
* Maximum size of read operation from a network stack
*/
#define ZT_STACK_SOCKET_RD_MAX 4096*4
#define ZT_STACK_SOCKET_RD_MAX 4096*4
/**
* Maximum length of libzt/ZeroTier home path (where keys, and config files are stored)
*/
#define ZT_HOME_PATH_MAX_LEN 256
#define ZT_HOME_PATH_MAX_LEN 256
/**
* Length of human-readable MAC address string
*/
#define ZT_MAC_ADDRSTRLEN 18
#define ZT_MAC_ADDRSTRLEN 18
/**
* Everything is ok
*/
#define ZT_ERR_OK 0
#define ZT_ERR_OK 0
/**
* Value returned during an internal failure at the VirtualSocket/VirtualTap layer
*/
#define ZT_ERR_GENERAL_FAILURE -88
#define ZT_ERR_GENERAL_FAILURE -88
/**
* Whether sockets created will have SO_LINGER set by default
*/
#define ZT_SOCK_BEHAVIOR_LINGER false
#define ZT_SOCK_BEHAVIOR_LINGER false
/**
* Length of time that VirtualSockets should linger (in seconds)
*/
#define ZT_SOCK_BEHAVIOR_LINGER_TIME 3
#define ZT_SOCK_BEHAVIOR_LINGER_TIME 3
/**
* Maximum wait time for socket closure if data is still present in the write queue
*/
#define ZT_SDK_CLTIME 60
#define ZT_SDK_CLTIME 60
/**
* Interval for performing background tasks (such as adding routes) on VirtualTap objects (in seconds)
*/
#define ZT_HOUSEKEEPING_INTERVAL 1
#define ZT_HOUSEKEEPING_INTERVAL 1
/****************************************************************************/
/* Socket API Signatures */

262
src/Utilities.cpp
View File

@@ -40,158 +40,158 @@
int inet_pton4(const char *src, void *dst)
{
uint8_t tmp[NS_INADDRSZ], *tp;
uint8_t tmp[NS_INADDRSZ], *tp;
int saw_digit = 0;
int octets = 0;
*(tp = tmp) = 0;
int saw_digit = 0;
int octets = 0;
*(tp = tmp) = 0;
int ch;
while ((ch = *src++) != '\0')
{
if (ch >= '0' && ch <= '9')
{
uint32_t n = *tp * 10 + (ch - '0');
int ch;
while ((ch = *src++) != '\0')
{
if (ch >= '0' && ch <= '9')
{
uint32_t n = *tp * 10 + (ch - '0');
if (saw_digit && *tp == 0)
return 0;
if (saw_digit && *tp == 0)
return 0;
if (n > 255)
return 0;
if (n > 255)
return 0;
*tp = n;
if (!saw_digit)
{
if (++octets > 4)
return 0;
saw_digit = 1;
}
}
else if (ch == '.' && saw_digit)
{
if (octets == 4)
return 0;
*++tp = 0;
saw_digit = 0;
}
else
return 0;
}
if (octets < 4)
return 0;
*tp = n;
if (!saw_digit)
{
if (++octets > 4)
return 0;
saw_digit = 1;
}
}
else if (ch == '.' && saw_digit)
{
if (octets == 4)
return 0;
*++tp = 0;
saw_digit = 0;
}
else
return 0;
}
if (octets < 4)
return 0;
memcpy(dst, tmp, NS_INADDRSZ);
memcpy(dst, tmp, NS_INADDRSZ);
return 1;
return 1;
}
int inet_pton6(const char *src, void *dst)
{
static const char xdigits[] = "0123456789abcdef";
uint8_t tmp[NS_IN6ADDRSZ];
static const char xdigits[] = "0123456789abcdef";
uint8_t tmp[NS_IN6ADDRSZ];
uint8_t *tp = (uint8_t*) memset(tmp, '\0', NS_IN6ADDRSZ);
uint8_t *endp = tp + NS_IN6ADDRSZ;
uint8_t *colonp = NULL;
uint8_t *tp = (uint8_t*) memset(tmp, '\0', NS_IN6ADDRSZ);
uint8_t *endp = tp + NS_IN6ADDRSZ;
uint8_t *colonp = NULL;
/* Leading :: requires some special handling. */
if (*src == ':')
{
if (*++src != ':')
return 0;
}
/* Leading :: requires some special handling. */
if (*src == ':')
{
if (*++src != ':')
return 0;
}
const char *curtok = src;
int saw_xdigit = 0;
uint32_t val = 0;
int ch;
while ((ch = tolower(*src++)) != '\0')
{
const char *pch = strchr(xdigits, ch);
if (pch != NULL)
{
val <<= 4;
val |= (pch - xdigits);
if (val > 0xffff)
return 0;
saw_xdigit = 1;
continue;
}
if (ch == ':')
{
curtok = src;
if (!saw_xdigit)
{
if (colonp)
return 0;
colonp = tp;
continue;
}
else if (*src == '\0')
{
return 0;
}
if (tp + NS_INT16SZ > endp)
return 0;
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
saw_xdigit = 0;
val = 0;
continue;
}
if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
inet_pton4(curtok, (char*) tp) > 0)
{
tp += NS_INADDRSZ;
saw_xdigit = 0;
break; /* '\0' was seen by inet_pton4(). */
}
return 0;
}
if (saw_xdigit)
{
if (tp + NS_INT16SZ > endp)
return 0;
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
}
if (colonp != NULL)
{
/*
* Since some memmove()'s erroneously fail to handle
* overlapping regions, we'll do the shift by hand.
*/
const int n = tp - colonp;
const char *curtok = src;
int saw_xdigit = 0;
uint32_t val = 0;
int ch;
while ((ch = tolower(*src++)) != '\0')
{
const char *pch = strchr(xdigits, ch);
if (pch != NULL)
{
val <<= 4;
val |= (pch - xdigits);
if (val > 0xffff)
return 0;
saw_xdigit = 1;
continue;
}
if (ch == ':')
{
curtok = src;
if (!saw_xdigit)
{
if (colonp)
return 0;
colonp = tp;
continue;
}
else if (*src == '\0')
{
return 0;
}
if (tp + NS_INT16SZ > endp)
return 0;
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
saw_xdigit = 0;
val = 0;
continue;
}
if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
inet_pton4(curtok, (char*) tp) > 0)
{
tp += NS_INADDRSZ;
saw_xdigit = 0;
break; /* '\0' was seen by inet_pton4(). */
}
return 0;
}
if (saw_xdigit)
{
if (tp + NS_INT16SZ > endp)
return 0;
*tp++ = (uint8_t) (val >> 8) & 0xff;
*tp++ = (uint8_t) val & 0xff;
}
if (colonp != NULL)
{
/*
* Since some memmove()'s erroneously fail to handle
* overlapping regions, we'll do the shift by hand.
*/
const int n = tp - colonp;
if (tp == endp)
return 0;
if (tp == endp)
return 0;
for (int i = 1; i <= n; i++)
{
endp[-i] = colonp[n - i];
colonp[n - i] = 0;
}
tp = endp;
}
if (tp != endp)
return 0;
for (int i = 1; i <= n; i++)
{
endp[-i] = colonp[n - i];
colonp[n - i] = 0;
}
tp = endp;
}
if (tp != endp)
return 0;
memcpy(dst, tmp, NS_IN6ADDRSZ);
memcpy(dst, tmp, NS_IN6ADDRSZ);
return 1;
return 1;
}
int inet_pton(int af, const char *src, void *dst)
{
switch (af)
{
case AF_INET:
return inet_pton4(src, dst);
case AF_INET6:
return inet_pton6(src, dst);
default:
return -1;
}
switch (af)
{
case AF_INET:
return inet_pton4(src, dst);
case AF_INET6:
return inet_pton6(src, dst);
default:
return -1;
}
}
#endif
@@ -254,5 +254,5 @@ char *beautify_eth_proto_nums(int proto)
void mac2str(char *macbuf, int len, unsigned char* addr)
{
snprintf(macbuf, len, "%02x:%02x:%02x:%02x:%02x:%02x",
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
}

46
src/lwIP.cpp
View File

@@ -78,7 +78,7 @@ struct netif lwipInterfaces[10];
int lwipInterfacesCount = 0;
ZeroTier::Mutex _rx_input_lock_m;
struct pbuf* lwip_frame_rxbuf[MAX_GUARDED_RX_BUF_SZ];
struct pbuf* lwip_frame_rxbuf[LWIP_MAX_GUARDED_RX_BUF_SZ];
int lwip_frame_rxbuf_tot = 0;
@@ -386,10 +386,6 @@ void lwip_init_interface(void *tapref, const ZeroTier::MAC &mac, const ZeroTier:
lwipInterfacesCount++;
}
/****************************************************************************/
/* Raw API driver */
/****************************************************************************/
@@ -1975,35 +1971,35 @@ inline void convert_ip(struct sockaddr_in * addr, struct ip4_addr *addr4);
*/
inline void convert_ip(struct sockaddr_in *addr, struct ip4_addr *addr4)
{
struct sockaddr_in *ipv4 = addr;
short a = ip4_addr1b(&(ipv4->sin_addr));
short b = ip4_addr2b(&(ipv4->sin_addr));
short c = ip4_addr3b(&(ipv4->sin_addr));
short d = ip4_addr4b(&(ipv4->sin_addr));
IP4_ADDR(addr4, a,b,c,d);
struct sockaddr_in *ipv4 = addr;
short a = ip4_addr1b(&(ipv4->sin_addr));
short b = ip4_addr2b(&(ipv4->sin_addr));
short c = ip4_addr3b(&(ipv4->sin_addr));
short d = ip4_addr4b(&(ipv4->sin_addr));
IP4_ADDR(addr4, a,b,c,d);
}
#define IP6_ADDR2(ipaddr, a,b,c,d,e,f,g,h) do { (ipaddr)->addr[0] = ZeroTier::Utils::hton((u32_t)((a & 0xffff) << 16) | (b & 0xffff)); \
(ipaddr)->addr[1] = ZeroTier::Utils::hton(((c & 0xffff) << 16) | (d & 0xffff)); \
(ipaddr)->addr[2] = ZeroTier::Utils::hton(((e & 0xffff) << 16) | (f & 0xffff)); \
(ipaddr)->addr[3] = ZeroTier::Utils::hton(((g & 0xffff) << 16) | (h & 0xffff)); } while(0)
(ipaddr)->addr[1] = ZeroTier::Utils::hton(((c & 0xffff) << 16) | (d & 0xffff)); \
(ipaddr)->addr[2] = ZeroTier::Utils::hton(((e & 0xffff) << 16) | (f & 0xffff)); \
(ipaddr)->addr[3] = ZeroTier::Utils::hton(((g & 0xffff) << 16) | (h & 0xffff)); } while(0)
/**
* Convert from standard IPV6 address structure to an lwIP native structure
*/
inline void in6_to_ip6(ip6_addr *ba, struct sockaddr_in6 *in6)
{
uint8_t *ip = &(in6->sin6_addr).s6_addr[0];
IP6_ADDR2(ba,
(((ip[ 0] & 0xffff) << 8) | ((ip[ 1]) & 0xffff)),
(((ip[ 2] & 0xffff) << 8) | ((ip[ 3]) & 0xffff)),
(((ip[ 4] & 0xffff) << 8) | ((ip[ 5]) & 0xffff)),
(((ip[ 6] & 0xffff) << 8) | ((ip[ 7]) & 0xffff)),
(((ip[ 8] & 0xffff) << 8) | ((ip[ 9]) & 0xffff)),
(((ip[10] & 0xffff) << 8) | ((ip[11]) & 0xffff)),
(((ip[12] & 0xffff) << 8) | ((ip[13]) & 0xffff)),
(((ip[14] & 0xffff) << 8) | ((ip[15]) & 0xffff))
);
uint8_t *ip = &(in6->sin6_addr).s6_addr[0];
IP6_ADDR2(ba,
(((ip[ 0] & 0xffff) << 8) | ((ip[ 1]) & 0xffff)),
(((ip[ 2] & 0xffff) << 8) | ((ip[ 3]) & 0xffff)),
(((ip[ 4] & 0xffff) << 8) | ((ip[ 5]) & 0xffff)),
(((ip[ 6] & 0xffff) << 8) | ((ip[ 7]) & 0xffff)),
(((ip[ 8] & 0xffff) << 8) | ((ip[ 9]) & 0xffff)),
(((ip[10] & 0xffff) << 8) | ((ip[11]) & 0xffff)),
(((ip[12] & 0xffff) << 8) | ((ip[13]) & 0xffff)),
(((ip[14] & 0xffff) << 8) | ((ip[15]) & 0xffff))
);
}
#endif // ZT_VIRTUAL_SOCKET