initial

src/main.c

@@ -0,0 +1,89 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <forward/routetable.h>
+#include <forward/if/interface.h>
+#include <iputils.h>
+
+#include <unistd.h>
+
+int main(void) {
+    if (RouteTable_Init() < 0) {
+        fprintf(stderr, "Failed to initialize route tables\n");
+        return EXIT_FAILURE;
+    }
+
+    interface_v4_t* iface = Interface_Create_v4("0.0.0.0", NULL, NULL);
+    interface_v6_t* iface6 = Interface_Create_v6("::", NULL, NULL);
+    if (!iface || !iface6) {
+        fprintf(stderr, "Failed to create interfaces\n");
+        RouteTable_Cleanup();
+        return EXIT_FAILURE;
+    }
+
+    route_table_v4_entry_t entry = {.destination = 0x01000000, .mask = 0xFF000000, .nextHop = 0xC0A80101}; // Example route: 1.0.0.0/8 via 192.168.1.1
+    if (RouteTable_AddRoute_v4(entry.destination, entry.mask, entry.nextHop) < 0) {
+        fprintf(stderr, "Failed to add route to IPv4 route table\n");
+    }
+
+    route_table_v4_entry_t entry2 = {.destination = 0x01020000, .mask = 0xFFFF0000, .nextHop = 0xC0A80102}; // Example route: 1.2.0.0/16 via 192.168.1.1 - more specific than the previous one
+    if (RouteTable_AddRoute_v4(entry2.destination, entry2.mask, entry2.nextHop) < 0) {
+        fprintf(stderr, "Failed to add route to IPv4 route table\n");
+    }
+
+    // Get said route
+    uint32_t nextHop;
+    if (RouteTable_GetNextHop_v4(0x01020005, &nextHop) == 0) { // 1.2.0.5 should match the /16 route, not the /8 route
+        char destStr[16], nextHopStr[16];
+        IPUtils_PrintIPv4(0x01020005, destStr);
+        IPUtils_PrintIPv4(nextHop, nextHopStr);
+        printf("Next hop for destination %s is %s\n", destStr, nextHopStr);
+    } else {
+        char destStr[16];
+        IPUtils_PrintIPv4(0x01020005, destStr);
+        fprintf(stderr, "Failed to get next hop for destination %s\n", destStr);
+    }
+
+    if (RouteTable_GetNextHop_v4(0x01010001, &nextHop) == 0) { // 1.1.0.1 should match the /8 route, not the /16 route
+        char destStr[16], nextHopStr[16];
+        IPUtils_PrintIPv4(0x01010001, destStr);
+        IPUtils_PrintIPv4(nextHop, nextHopStr);
+        printf("Next hop for destination %s is %s\n", destStr, nextHopStr);
+    } else {
+        char destStr[16];
+        IPUtils_PrintIPv4(0x01010001, destStr);
+        fprintf(stderr, "Failed to get next hop for destination %s\n", destStr);
+    }
+
+    // Some IPv6 routes
+    __uint128_t dest6 = (((__uint128_t)0x20010DB8 << 96) | ((__uint128_t)0x00000000 << 64) | ((__uint128_t)0x00000000 << 32) | (__uint128_t)0x00000001); // 2001:0db8::1
+    __uint128_t mask6 = IPUtils_CIDRToMaskv6(64);
+    __uint128_t nextHop6 = (((__uint128_t)0x20010DB8 << 96) | ((__uint128_t)0x00000000 << 64) | ((__uint128_t)0x00000000 << 32) | (__uint128_t)0x00000002); // 2001:0db8::2
+    if (RouteTable_AddRoute_v6(dest6, mask6, nextHop6) < 0) {
+        fprintf(stderr, "Failed to add route to IPv6 route table\n");
+    }
+
+    // Get said IPv6 route
+    __uint128_t nextHop6Out;
+    if (RouteTable_GetNextHop_v6(dest6, &nextHop6Out) == 0) {
+        char destStr[40], nextHopStr[40];
+        IPUtils_PrintIPv6(dest6, destStr);
+        IPUtils_PrintIPv6(nextHop6Out, nextHopStr);
+        printf("Next hop for destination %s is %s\n", destStr, nextHopStr);
+    } else {
+        char destStr[40];
+        IPUtils_PrintIPv6(dest6, destStr);
+        fprintf(stderr, "Failed to get next hop for destination %s\n", destStr);
+    }
+
+    while (1) {
+        // Main loop can be used for future tasks such as monitoring, CLI, etc.
+        // For now, it just keeps the program running until interrupted.
+        pause();
+    }
+
+    RouteTable_Cleanup();
+    Interface_Cleanup();
+
+    return 0;
+}