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Add bind option for TCP

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wh201906 2023-10-23 13:45:06 +08:00
parent 15ef4f6768
commit 56b4bda50d
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3 changed files with 139 additions and 0 deletions
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1
CHANGELOG.md
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@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
## [unreleased][unreleased]
- Added `bind` option for network connections to specify the outbound address and port (@wh201906)
- Added new command `data bmap` - breaks down a hexvalue to a binary template (@iceman1001)
- Changed aid_desfire.json - added entreis from the Metrodroid project (@iceman1001)
- Changed mad.json - added entries from the Metrodroid project (@iceman1001)

68
client/src/uart/uart_posix.c
View file

@ -121,6 +121,65 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
timeout.tv_usec = UART_TCP_CLIENT_RX_TIMEOUT_MS * 1000;
// find the "bind" option
char *bindAddrPortStr = strstr(addrPortStr, ",bind=");
char *bindAddrStr = NULL;
char *bindPortStr = NULL;
bool isBindingIPv6 = false; // Assume v4
if (bindAddrPortStr != NULL) {
*bindAddrPortStr = '\0'; // as the end of target address (and port)
bindAddrPortStr += 6;
bindAddrStr = bindAddrPortStr;
// find the start of the bind address
char *endBracket = strrchr(bindAddrPortStr, ']');
if (bindAddrPortStr[0] == '[') {
bindAddrStr += 1;
if (endBracket == NULL) {
PrintAndLogEx(ERR, "error: wrong address: [] unmatched in bind option");
free(addrPortStr);
free(sp);
return INVALID_SERIAL_PORT;
}
}
// find the bind port
char *lColon = strchr(bindAddrPortStr, ':');
char *rColon = strrchr(bindAddrPortStr, ':');
if (rColon == NULL) {
// no colon
// ",bind=<ipv4 address>", ",bind=[<ipv4 address>]"
bindPortStr = NULL;
} else if (lColon == rColon) {
// only one colon
// ",bind=<ipv4 address>:<port>", ",bind=[<ipv4 address>]:<port>"
bindPortStr = rColon + 1;
} else {
// two or more colon, IPv6 address
// ",bind=[<ipv6 address>]:<port>"
// ",bind=<ipv6 address>", ",bind=[<ipv6 address>]"
if (endBracket != NULL && rColon == endBracket + 1) {
bindPortStr = rColon + 1;
} else {
bindPortStr = NULL;
}
isBindingIPv6 = true;
}
// handle the end of the bind address
if (endBracket != NULL) {
*endBracket = '\0';
} else if (rColon != NULL && lColon == rColon) {
*rColon = '\0';
}
// for bind option, it's possible to only specify address or port
if (strlen(bindAddrStr) == 0)
bindAddrStr = NULL;
if (bindPortStr != NULL && strlen(bindPortStr) == 0)
bindPortStr = NULL;
}
// find the start of the address
char *endBracket = strrchr(addrPortStr, ']');
if (addrPortStr[0] == '[') {
@ -190,6 +249,15 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
if (sfd == -1)
continue;
if (!uart_bind(&sfd, bindAddrStr, bindPortStr, isBindingIPv6)) {
PrintAndLogEx(ERR, "error: Could not bind. errno: %d", errno);
close(sfd);
freeaddrinfo(addr);
free(addrPortStr);
free(sp);
return INVALID_SERIAL_PORT;
}
if (connect(sfd, rp->ai_addr, rp->ai_addrlen) != -1)
break;

70
client/src/uart/uart_win32.c
View file

@ -123,6 +123,65 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
timeout.tv_usec = UART_TCP_CLIENT_RX_TIMEOUT_MS * 1000;
// find the "bind" option
char *bindAddrPortStr = strstr(addrPortStr, ",bind=");
char *bindAddrStr = NULL;
char *bindPortStr = NULL;
bool isBindingIPv6 = false; // Assume v4
if (bindAddrPortStr != NULL) {
*bindAddrPortStr = '\0'; // as the end of target address (and port)
bindAddrPortStr += 6;
bindAddrStr = bindAddrPortStr;
// find the start of the bind address
char *endBracket = strrchr(bindAddrPortStr, ']');
if (bindAddrPortStr[0] == '[') {
bindAddrStr += 1;
if (endBracket == NULL) {
PrintAndLogEx(ERR, "error: wrong address: [] unmatched in bind option");
free(addrPortStr);
free(sp);
return INVALID_SERIAL_PORT;
}
}
// find the bind port
char *lColon = strchr(bindAddrPortStr, ':');
char *rColon = strrchr(bindAddrPortStr, ':');
if (rColon == NULL) {
// no colon
// ",bind=<ipv4 address>", ",bind=[<ipv4 address>]"
bindPortStr = NULL;
} else if (lColon == rColon) {
// only one colon
// ",bind=<ipv4 address>:<port>", ",bind=[<ipv4 address>]:<port>"
bindPortStr = rColon + 1;
} else {
// two or more colon, IPv6 address
// ",bind=[<ipv6 address>]:<port>"
// ",bind=<ipv6 address>", ",bind=[<ipv6 address>]"
if (endBracket != NULL && rColon == endBracket + 1) {
bindPortStr = rColon + 1;
} else {
bindPortStr = NULL;
}
isBindingIPv6 = true;
}
// handle the end of the bind address
if (endBracket != NULL) {
*endBracket = '\0';
} else if (rColon != NULL && lColon == rColon) {
*rColon = '\0';
}
// for bind option, it's possible to only specify address or port
if (strlen(bindAddrStr) == 0)
bindAddrStr = NULL;
if (bindPortStr != NULL && strlen(bindPortStr) == 0)
bindPortStr = NULL;
}
// find the start of the address
char *endBracket = strrchr(addrPortStr, ']');
if (addrPortStr[0] == '[') {
@ -202,6 +261,17 @@ serial_port uart_open(const char *pcPortName, uint32_t speed) {
if (hSocket == INVALID_SOCKET)
continue;
if (!uart_bind(&hSocket, bindAddrStr, bindPortStr, isBindingIPv6)) {
PrintAndLogEx(ERR, "error: Could not bind. error: %u", WSAGetLastError());
closesocket(hSocket);
hSocket = INVALID_SOCKET;
freeaddrinfo(addr);
free(addrPortStr);
free(sp);
WSACleanup();
return INVALID_SERIAL_PORT;
}
if (connect(hSocket, rp->ai_addr, (int)rp->ai_addrlen) != INVALID_SOCKET)
break;