Create net6.c and add CONFIG_NET6 to Kconfig/Makefile. Also add support for the following environment variables: - ip6addr - gateway6 - serverip6
Signed-off-by: Chris Packham judge.packham@gmail.com ---
Changes in v2: - Split environment variables from main implementation - remove "prefixlength6" environment variable. The prefix length is now set when specifying the address i.e. setenv ip6addr 2001:db8::1/64.
include/env_callback.h | 8 +++++ include/env_flags.h | 9 +++++ net/Kconfig | 5 +++ net/Makefile | 1 + net/net6.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 112 insertions(+) create mode 100644 net/net6.c
diff --git a/include/env_callback.h b/include/env_callback.h index 90b95b5..97e245b 100644 --- a/include/env_callback.h +++ b/include/env_callback.h @@ -60,6 +60,13 @@ #define NET_CALLBACKS #endif
+#ifdef CONFIG_NET6 +#define NET6_CALLBACKS \ + "ip6addr:ip6addr," \ + "serverip6:serverip6," +#else +#define NET6_CALLBACKS +#endif /* * This list of callback bindings is static, but may be overridden by defining * a new association in the ".callbacks" environment variable. @@ -68,6 +75,7 @@ ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \ "baudrate:baudrate," \ NET_CALLBACKS \ + NET6_CALLBACKS \ "loadaddr:loadaddr," \ SILENT_CALLBACK \ SPLASHIMAGE_CALLBACK \ diff --git a/include/env_flags.h b/include/env_flags.h index 8823fb9..bf93f15 100644 --- a/include/env_flags.h +++ b/include/env_flags.h @@ -65,6 +65,14 @@ enum env_flags_varaccess { #define NET_FLAGS #endif
+#ifdef CONFIG_NET6 +#define NET6_FLAGS \ + "ip6addr:s," \ + "serverip6:s," +#else +#define NET6_FLAGS +#endif + #ifndef CONFIG_ENV_OVERWRITE #define SERIAL_FLAGS "serial#:so," #else @@ -74,6 +82,7 @@ enum env_flags_varaccess { #define ENV_FLAGS_LIST_STATIC \ ETHADDR_FLAGS \ NET_FLAGS \ + NET6_FLAGS \ SERIAL_FLAGS \ CONFIG_ENV_FLAGS_LIST_STATIC
diff --git a/net/Kconfig b/net/Kconfig index a44a783..bacd914 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -32,4 +32,9 @@ config NET_TFTP_VARS If unset, timeout and maximum are hard-defined as 1 second and 10 timouts per TFTP transfer.
+config NET6 + bool "IPv6 support" + help + Support for IPv6 + endif # if NET diff --git a/net/Makefile b/net/Makefile index e9cc8ad..6da8019 100644 --- a/net/Makefile +++ b/net/Makefile @@ -20,3 +20,4 @@ obj-$(CONFIG_CMD_PING) += ping.o obj-$(CONFIG_CMD_RARP) += rarp.o obj-$(CONFIG_CMD_SNTP) += sntp.o obj-$(CONFIG_CMD_NET) += tftp.o +obj-$(CONFIG_NET6) += net6.o diff --git a/net/net6.c b/net/net6.c new file mode 100644 index 0000000..f778cef --- /dev/null +++ b/net/net6.c @@ -0,0 +1,89 @@ +/* + * Simple IPv6 network layer implementation. + * + * Based and/or adapted from the IPv4 network layer in net.[hc] + * + * (C) Copyright 2013 Allied Telesis Labs NZ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <environment.h> +#include <malloc.h> +#include <net.h> +#include <net6.h> +#include "ndisc.h" + +/* Our gateway's IPv6 address */ +struct in6_addr net_gateway6 = ZERO_IPV6_ADDR; +/* Our IPv6 addr (0 = unknown) */ +struct in6_addr net_ip6 = ZERO_IPV6_ADDR; +/* set server IPv6 addr (0 = unknown) */ +struct in6_addr net_server_ip6 = ZERO_IPV6_ADDR; +/* The prefix length of our network */ +u_int32_t net_prefix_length; + +static int on_ip6addr(const char *name, const char *value, enum env_op op, + int flags) +{ + char *v, *s, *strcopy; + int i; + + if (flags & H_PROGRAMMATIC) + return 0; + + if (op == env_op_delete) { + net_prefix_length = 0; + net_copy_ip6(&net_ip6, &net_null_addr_ip6); + return 0; + } + + strcopy = strdup(value); + if (strcopy == NULL) + return -1; + + net_prefix_length = 128; + i = 0; + s = strcopy; + while (s) { + v = strsep(&s, "/"); + if (!v) + break; + + switch (i++) { + case 0: + string_to_ip6(v, &net_ip6); + break; + case 1: + net_prefix_length = simple_strtoul(v, NULL, 10); + break; + default: + break; + } + } + free(strcopy); + + return 0; +} +U_BOOT_ENV_CALLBACK(ip6addr, on_ip6addr); + +static int on_gatewayip6(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + return string_to_ip6(value, &net_gateway6); +} +U_BOOT_ENV_CALLBACK(gatewayip6, on_gatewayip6); + +static int on_serverip6(const char *name, const char *value, enum env_op op, + int flags) +{ + if (flags & H_PROGRAMMATIC) + return 0; + + return string_to_ip6(value, &net_server_ip6); +} +U_BOOT_ENV_CALLBACK(serverip6, on_serverip6);