Porting PicoTCP WIP

2025-10-29 14:29:06 +01:00
parent 6722f42e68
commit 815c2239fe
464 changed files with 235009 additions and 24 deletions
--- a/kernel/picotcp/test/examples/dhcp_client.c
+++ b/kernel/picotcp/test/examples/dhcp_client.c
@ -0,0 +1,114 @@
+#include "utils.h"
+#include <pico_ipv4.h>
+#include <pico_dhcp_client.h>
+#include <pico_socket.h>
+#include <pico_icmp4.h>
+#include <pico_device.h>
+/*** START DHCP Client ***/
+#ifdef PICO_SUPPORT_DHCPC
+
+/* This must stay global, its lifetime is the same as the dhcp negotiation */
+uint32_t dhcpclient_xid;
+
+
+static uint8_t dhcpclient_devices = 0;
+
+void ping_callback_dhcpclient(struct pico_icmp4_stats *s)
+{
+    char host[30] = { };
+
+    pico_ipv4_to_string(host, s->dst.addr);
+    if (s->err == 0) {
+        dbg("DHCP client: %lu bytes from %s: icmp_req=%lu ttl=64 time=%lu ms\n",
+            s->size, host, s->seq, (long unsigned int)s->time);
+        if (s->seq >= 3) {
+            dbg("DHCP client: TEST SUCCESS!\n");
+            if (--dhcpclient_devices <= 0)
+                exit(0);
+        }
+    } else {
+        dbg("DHCP client: ping %lu to %s error %d\n", s->seq, host, s->err);
+        dbg("DHCP client: TEST FAILED!\n");
+        exit(1);
+    }
+}
+
+void callback_dhcpclient(void *arg, int code)
+{
+    struct pico_ip4 address = ZERO_IP4, gateway = ZERO_IP4;
+    char s_address[16] = { }, s_gateway[16] = { };
+
+    printf("DHCP client: callback happened with code %d!\n", code);
+    if (code == PICO_DHCP_SUCCESS) {
+        address = pico_dhcp_get_address(arg);
+        gateway = pico_dhcp_get_gateway(arg);
+        pico_ipv4_to_string(s_address, address.addr);
+        pico_ipv4_to_string(s_gateway, gateway.addr);
+        printf("DHCP client: got IP %s assigned with cli %p\n", s_address, arg);
+#ifdef PICO_SUPPORT_PING
+        pico_icmp4_ping(s_gateway, 3, 1000, 5000, 32, ping_callback_dhcpclient);
+        /* optional test to check routing when links get added and deleted */
+        /* do {
+           char *new_arg = NULL, *p = NULL;
+           new_arg = calloc(1, strlen(s_address) + strlen(":224.7.7.7:6667:6667") + 1);
+           p = strcat(new_arg, s_address);
+           p = strcat(p + strlen(s_address), ":224.7.7.7:6667:6667");
+           app_mcastsend(new_arg);
+           } while (0);
+         */
+#endif
+    }
+}
+
+void app_dhcp_client(char *arg)
+{
+    char *sdev = NULL;
+    char *nxt = arg;
+    struct pico_device *dev = NULL;
+
+    if (!nxt)
+        goto out;
+
+    while (nxt) {
+        if (nxt) {
+            nxt = cpy_arg(&sdev, nxt);
+            if(!sdev) {
+                goto out;
+            }
+        }
+
+        dev = pico_get_device(sdev);
+        if(dev == NULL) {
+            if (sdev)
+                free(sdev);
+
+            printf("%s: error getting device %s: %s\n", __FUNCTION__, dev->name, strerror(pico_err));
+            exit(255);
+        }
+
+        printf("Starting negotiation\n");
+
+        if (pico_dhcp_initiate_negotiation(dev, &callback_dhcpclient, &dhcpclient_xid) < 0) {
+            printf("%s: error initiating negotiation: %s\n", __FUNCTION__, strerror(pico_err));
+            if (sdev)
+                free(sdev);
+
+            exit(255);
+        }
+
+        if (sdev)
+            free(sdev);
+
+        dhcpclient_devices++;
+    }
+    return;
+
+out:
+    fprintf(stderr, "dhcpclient expects the following format: dhcpclient:dev_name:[dev_name]\n");
+    if (sdev)
+        free(sdev);
+
+    exit(255);
+}
+#endif
+/*** END DHCP Client ***/