diff options
Diffstat (limited to 'package/utils/busybox/patches/244-udhcpc_add_6rd_option.patch')
| -rw-r--r-- | package/utils/busybox/patches/244-udhcpc_add_6rd_option.patch | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/package/utils/busybox/patches/244-udhcpc_add_6rd_option.patch b/package/utils/busybox/patches/244-udhcpc_add_6rd_option.patch deleted file mode 100644 index 2f0eadb160..0000000000 --- a/package/utils/busybox/patches/244-udhcpc_add_6rd_option.patch +++ /dev/null @@ -1,143 +0,0 @@ ---- a/networking/udhcp/common.c -+++ b/networking/udhcp/common.c -@@ -60,6 +60,8 @@ const struct dhcp_optflag dhcp_optflags[ - { OPTION_U8 , 0x85 }, /* DHCP_VLAN_PRIORITY */ - #endif - { OPTION_STATIC_ROUTES , 0xf9 }, /* DHCP_MS_STATIC_ROUTES */ -+ { OPTION_6RD , 0xd4 }, /* DHCP_6RD (RFC) */ -+ { OPTION_6RD , 0x96 }, /* DHCP_6RD (Comcast) */ - { OPTION_STRING , 0xfc }, /* DHCP_WPAD */ - - /* Options below have no match in dhcp_option_strings[], -@@ -127,6 +129,8 @@ const char dhcp_option_strings[] ALIGN1 - "vlanpriority" "\0"/* DHCP_VLAN_PRIORITY */ - #endif - "msstaticroutes""\0"/* DHCP_MS_STATIC_ROUTES */ -+ "ip6rd" "\0" /* DHCP_6RD (RFC) */ -+ "ip6rd" "\0" /* DHCP_6RD (Comcast) */ - "wpad" "\0" /* DHCP_WPAD */ - ; - -@@ -155,6 +159,7 @@ const uint8_t dhcp_option_lengths[] ALIG - [OPTION_S32] = 4, - /* Just like OPTION_STRING, we use minimum length here */ - [OPTION_STATIC_ROUTES] = 5, -+ [OPTION_6RD] = 22, - }; - - ---- a/networking/udhcp/common.h -+++ b/networking/udhcp/common.h -@@ -91,6 +91,7 @@ enum { - OPTION_S32, - OPTION_BIN, - OPTION_STATIC_ROUTES, -+ OPTION_6RD, - #if ENABLE_FEATURE_UDHCP_RFC3397 - OPTION_DNS_STRING, /* RFC1035 compressed domain name list */ - OPTION_SIP_SERVERS, ---- a/networking/udhcp/dhcpc.c -+++ b/networking/udhcp/dhcpc.c -@@ -100,6 +100,7 @@ static const uint8_t len_of_option_as_st - [OPTION_IP ] = sizeof("255.255.255.255 "), - [OPTION_IP_PAIR ] = sizeof("255.255.255.255 ") * 2, - [OPTION_STATIC_ROUTES ] = sizeof("255.255.255.255/32 255.255.255.255 "), -+ [OPTION_6RD ] = sizeof("32 128 FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF 255.255.255.255 "), - [OPTION_STRING ] = 1, - [OPTION_STRING_HOST ] = 1, - #if ENABLE_FEATURE_UDHCP_RFC3397 -@@ -124,6 +125,23 @@ static int sprint_nip(char *dest, const - return sprintf(dest, "%s%u.%u.%u.%u", pre, ip[0], ip[1], ip[2], ip[3]); - } - -+static int sprint_nip6(char *dest, const char *pre, const uint8_t *ip) -+{ -+ int len = 0; -+ int off; -+ uint16_t word; -+ -+ len += sprintf(dest, "%s", pre); -+ -+ for (off = 0; off < 16; off += 2) -+ { -+ move_from_unaligned16(word, &ip[off]); -+ len += sprintf(dest+len, "%s%04X", off ? ":" : "", htons(word)); -+ } -+ -+ return len; -+} -+ - /* really simple implementation, just count the bits */ - static int mton(uint32_t mask) - { -@@ -292,6 +310,70 @@ static NOINLINE char *xmalloc_optname_op - } - - return ret; -+ } -+ case OPTION_6RD: { -+ /* Option binary format: -+ * 0 1 2 3 -+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -+ * | OPTION_6RD | option-length | IPv4MaskLen | 6rdPrefixLen | -+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -+ * | | -+ * | 6rdPrefix | -+ * | (16 octets) | -+ * | | -+ * | | -+ * | | -+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -+ * | 6rdBRIPv4Address(es) | -+ * . . -+ * . . -+ * . . -+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -+ * -+ * We convert it to a string "IPv4MaskLen 6rdPrefixLen 6rdPrefix 6rdBRIPv4Address" -+ */ -+ -+ /* Sanity check: ensure that our length is at least 22 bytes, that -+ * IPv4MaskLen is <= 32, 6rdPrefixLen <= 128 and that the sum of -+ * (32 - IPv4MaskLen) + 6rdPrefixLen is less than or equal to 128. -+ * If any of these requirements is not fulfilled, return with empty -+ * value. -+ */ -+ if ((len >= 22) && (*option <= 32) && (*(option+1) <= 128) && -+ (((32 - *option) + *(option+1)) <= 128)) -+ { -+ /* IPv4MaskLen */ -+ dest += sprintf(dest, "%u ", *option++); -+ len--; -+ -+ /* 6rdPrefixLen */ -+ dest += sprintf(dest, "%u ", *option++); -+ len--; -+ -+ /* 6rdPrefix */ -+ dest += sprint_nip6(dest, "", option); -+ option += 16; -+ len -= 16; -+ -+ /* 6rdBRIPv4Addresses */ -+ while (len >= 4) -+ { -+ dest += sprint_nip(dest, " ", option); -+ option += 4; -+ len -= 4; -+ -+ /* the code to determine the option size fails to work with -+ * lengths that are not a multiple of the minimum length, -+ * adding all advertised 6rdBRIPv4Addresses here would -+ * overflow the destination buffer, therefore skip the rest -+ * for now -+ */ -+ break; -+ } -+ } -+ -+ return ret; - } - #if ENABLE_FEATURE_UDHCP_RFC3397 - case OPTION_DNS_STRING: |