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TAP

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- Removed uneeded imports
This commit is contained in:
Tristan Brice Velloza Kildaire 2024-12-15 18:07:55 +02:00
parent 111621791a
commit 0d5ed2b5ad
1 changed files with 14 additions and 13 deletions
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27
TAP.c
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@ -1,11 +1,11 @@
#include "TAP.h" #include "TAP.h"
// Needed for in6_ifreq // Needed for in6_ifreq
#include <arpa/inet.h> // #include <arpa/inet.h>
#include <linux/ipv6.h> #include <linux/ipv6.h>
#include <netinet/in.h> // #include <netinet/in.h>
#include <sys/ioctl.h> // #include <sys/ioctl.h>
#include <sys/socket.h> // #include <sys/socket.h>
char tap_name[IFNAMSIZ]; char tap_name[IFNAMSIZ];
@ -43,7 +43,7 @@ void trySixSet
interfaceIndex interfaceIndex
); );
int dummySock = socket(AF_INET6, SOCK_DGRAM, 0); int inet6 = socket(AF_INET6, SOCK_DGRAM, 0);
struct in6_ifreq paramReq; struct in6_ifreq paramReq;
memset(&paramReq, 0, sizeof(struct in6_ifreq)); memset(&paramReq, 0, sizeof(struct in6_ifreq));
@ -53,7 +53,7 @@ void trySixSet
// Try add the address // Try add the address
if(ioctl(dummySock, SIOCSIFADDR, &paramReq) < 0) if(ioctl(inet6, SIOCSIFADDR, &paramReq) < 0)
{ {
printf printf
( (
@ -63,12 +63,12 @@ void trySixSet
interfaceIndex interfaceIndex
); );
cleanup(); cleanup();
close(dummySock); close(inet6);
exit(1); exit(1);
} }
printf("Address '%s/%d' added\n", ip_str, prefixLen); printf("Address '%s/%d' added\n", ip_str, prefixLen);
close(dummySock); close(inet6);
} }
#include<string.h> #include<string.h>
@ -257,16 +257,17 @@ int open_tap(void) {
if(mtu < 1280) if(mtu < 1280)
{ {
printf("MTU must be 1280 bytes or more for IPv6\n"); printf("MTU must be 1280 bytes or more for IPv6\n");
close(inet);
cleanup(); cleanup();
exit(1); exit(1);
} }
// Firstly, obtain the interface index by `ifr_name` // Firstly, obtain the interface index by `ifr_name`
int dummySock = socket(AF_INET6, SOCK_DGRAM, 0); int inet6 = socket(AF_INET6, SOCK_DGRAM, 0);
if(ioctl(dummySock, SIOCGIFINDEX, &ifr) < 0) if(ioctl(inet6, SIOCGIFINDEX, &ifr) < 0)
{ {
printf("Could not get interface index for interface '%s'\n", ifr.ifr_name); printf("Could not get interface index for interface '%s'\n", ifr.ifr_name);
close(dummySock); close(inet6);
cleanup(); cleanup();
exit(1); exit(1);
} }
@ -287,7 +288,7 @@ int open_tap(void) {
if(!prefixPart_s) if(!prefixPart_s)
{ {
perror("No prefix length was provided"); // TODO: Move logic into arg parsing perror("No prefix length was provided"); // TODO: Move logic into arg parsing
close(dummySock); close(inet6);
cleanup(); cleanup();
exit(1); exit(1);
} }
@ -303,7 +304,7 @@ int open_tap(void) {
if(inet_pton(AF_INET6, ipv6_addr, &six_addr_itself) < 0) if(inet_pton(AF_INET6, ipv6_addr, &six_addr_itself) < 0)
{ {
printf("Error parsing IPv6 address '%s'\n", ipv6_addr); printf("Error parsing IPv6 address '%s'\n", ipv6_addr);
close(dummySock); close(inet6);
cleanup(); cleanup();
exit(1); exit(1);
} }