openwrt/upstream - upstream openwrt

	Commit message (Collapse)	Author	Age	Files	Lines
*	bcm27xx: add kernel 5.10 support	Álvaro Fernández Rojas	2021-08-21	1	-0/+25
	Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

/* * MAC address manupulation utility * * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * */ #include <errno.h> #include <stdlib.h> #include <stdio.h> #include <stdint.h> #include <string.h> #include <unistd.h> #define MAC_ADDRESS_LEN 6 #define ERR_INVALID 1 #define ERR_IO 2 static void usage(void); char *maccalc_name; static int parse_mac(const char *mac_str, unsigned char *buf) { int t; t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", &buf[0], &buf[1], &buf[2], &buf[3], &buf[4], &buf[5]); if (t != MAC_ADDRESS_LEN) return ERR_INVALID; return 0; } static void print_mac(unsigned char *buf) { printf("%02x:%02x:%02x:%02x:%02x:%02x\n", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); } static int maccalc_do_add(int argc, const char *argv[]) { unsigned char mac[MAC_ADDRESS_LEN]; uint32_t t; int err; int i; if (argc != 2) { usage(); return ERR_INVALID; } err = parse_mac(argv[0], mac); if (err) return err; i = atoi(argv[1]); t = (mac[3] << 16) | (mac[4] << 8) | mac[5]; t += i; mac[3] = (t >> 16) & 0xff; mac[4] = (t >> 8) & 0xff; mac[5] = t & 0xff; print_mac(mac); return 0; } static int maccalc_do_logical(int argc, const char *argv[], unsigned char (*op)(unsigned char n1, unsigned char n2)) { unsigned char mac1[MAC_ADDRESS_LEN]; unsigned char mac2[MAC_ADDRESS_LEN]; int err; int i; if (argc != 2) { usage(); return ERR_INVALID; } err = parse_mac(argv[0], mac1); if (err) return err; err = parse_mac(argv[1], mac2); if (err) return err; for (i = 0; i < MAC_ADDRESS_LEN; i++) mac1[i] = op(mac1[i],mac2[i]); print_mac(mac1); return 0; } static int maccalc_do_mac2bin(int argc, const char *argv[]) { unsigned char mac[MAC_ADDRESS_LEN]; ssize_t c; int err; if (argc != 1) { usage(); return ERR_INVALID; } err = parse_mac(argv[0], mac); if (err) return err; c = write(STDOUT_FILENO, mac, sizeof(mac)); if (c != sizeof(mac)) { fprintf(stderr, "failed to write to stdout\n"); return ERR_IO; } return 0; } static ssize_t read_safe(int fd, void *buf, size_t count) { ssize_t total = 0; ssize_t r; while(count > 0) { r = read(fd, buf, count); if (r == 0) /* EOF */ break; if (r < 0) { if (errno == EINTR) /* interrupted by a signal, restart */ continue; /* error */ total = -1; break; } /* ok */ total += r; count -= r; buf += r; } return total; } static int maccalc_do_bin2mac(int argc, const char *argv[]) { unsigned char mac[MAC_ADDRESS_LEN]; ssize_t c; if (argc != 0) { usage(); return ERR_INVALID; } c = read_safe(STDIN_FILENO, mac, sizeof(mac)); if (c != sizeof(mac)) { fprintf(stderr, "failed to read from stdin\n"); return ERR_IO; } print_mac(mac); return 0; } static unsigned char op_or(unsigned char n1, unsigned char n2) { return n1 | n2; } static int maccalc_do_or(int argc, const char *argv[]) { return maccalc_do_logical(argc, argv, op_or); } static unsigned char op_and(unsigned char n1, unsigned char n2) { return n1 & n2; } static int maccalc_do_and(int argc, const char *argv[]) { return maccalc_do_logical(argc, argv, op_and); } static unsigned char op_xor(unsigned char n1, unsigned char n2) { return n1 ^ n2; } static int maccalc_do_xor(int argc, const char *argv[]) { return maccalc_do_logical(argc, argv, op_xor); } static void usage(void) { fprintf(stderr, "Usage: %s <command>\n" "valid commands:\n" " add <mac> <number>\n" " and|or|xor <mac1> <mac2>\n" " mac2bin <mac>\n" " bin2mac\n", maccalc_name); } int main(int argc, const char *argv[]) { int (*op)(int argc, const char *argv[]); int ret; maccalc_name = (char *) argv[0]; if (argc < 2) { usage(); return EXIT_FAILURE; } if (strcmp(argv[1], "add") == 0) { op = maccalc_do_add; } else if (strcmp(argv[1], "and") == 0) { op = maccalc_do_and; } else if (strcmp(argv[1], "or") == 0) { op = maccalc_do_or; } else if (strcmp(argv[1], "xor") == 0) { op = maccalc_do_xor; } else if (strcmp(argv[1], "mac2bin") == 0) { op = maccalc_do_mac2bin; } else if (strcmp(argv[1], "bin2mac") == 0) { op = maccalc_do_bin2mac; } else { fprintf(stderr, "unknown command '%s'\n", argv[1]); usage(); return EXIT_FAILURE; } argc -= 2; argv += 2; ret = op(argc, argv); if (ret) return EXIT_FAILURE; return EXIT_SUCCESS; }