net: Move library functions to net/lib.c

Some network related functions are also needed when networking
is disabled. Move these to a separate file which is always compiled.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 109 insertions, 0 deletions

diff --git a/net/lib.c b/net/lib.c
new file mode 100644
index 0000000000..f1c60c9a74
--- /dev/null
+++ b/net/lib.c
@@ -0,0 +1,109 @@
+/*
+ * net.c - barebox networking support
+ *
+ * Copyright (c) 2015 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * based on U-Boot (LiMon) code
+ *
+ * Copyright 1994 - 2000 Neil Russell.
+ * Copyright 2000 Roland Borde
+ * Copyright 2000 Paolo Scaffardi
+ * Copyright 2000-2002 Wolfgang Denk, wd@denx.de
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <common.h>
+#include <net.h>
+#include <linux/ctype.h>
+
+int string_to_ethaddr(const char *str, u8 enetaddr[6])
+{
+	int reg;
+	char *e;
+
+	if (!str || strlen(str) != 17) {
+		memset(enetaddr, 0, 6);
+		return -EINVAL;
+	}
+
+	if (str[2] != ':' || str[5] != ':' || str[8] != ':' ||
+			str[11] != ':' || str[14] != ':')
+		return -EINVAL;
+
+	for (reg = 0; reg < 6; ++reg) {
+		enetaddr[reg] = simple_strtoul(str, &e, 16);
+		str = e + 1;
+	}
+
+	return 0;
+}
+
+void ethaddr_to_string(const u8 enetaddr[6], char *str)
+{
+	sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
+		 enetaddr[0], enetaddr[1], enetaddr[2], enetaddr[3],
+		 enetaddr[4], enetaddr[5]);
+}
+
+void print_IPaddr(IPaddr_t x)
+{
+	puts(ip_to_string(x));
+}
+
+char *ip_to_string(IPaddr_t x)
+{
+	static char s[sizeof("xxx.xxx.xxx.xxx")];
+
+	x = ntohl(x);
+	sprintf(s, "%d.%d.%d.%d",
+		 (int) ((x >> 24) & 0xff),
+		 (int) ((x >> 16) & 0xff),
+		 (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff)
+	);
+
+	return s;
+}
+
+int string_to_ip(const char *s, IPaddr_t *ip)
+{
+	IPaddr_t addr = 0;
+	char *e;
+	int i;
+
+	if (!s)
+		return -EINVAL;
+
+	for (i = 0; i < 4; i++) {
+		unsigned long val;
+
+		if (!isdigit(*s))
+			return -EINVAL;
+
+		val = simple_strtoul(s, &e, 10);
+		if (val > 255)
+			return -EINVAL;
+
+		addr = (addr << 8) | val;
+
+		if (*e != '.' && i != 3)
+			return -EINVAL;
+
+		s = e + 1;
+	}
+
+	*ip = htonl(addr);
+
+	return 0;
+}