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| author | Viacheslav Mitrofanov <v.v.mitrofanov@yadro.com> | 2022-12-02 12:18:02 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-12-05 20:47:16 +0300 |
| commit | 2f7f2f2aa9d310c2937bd753df1a2bd6953194d1 (patch) | |
| tree | b13dcd80d9cba3c62de972dbcf85da06bb95f644 /include | |
| parent | c6610e1d90ea56711204b4d7a773f8e38976c87b (diff) | |
| download | u-boot-2f7f2f2aa9d310c2937bd753df1a2bd6953194d1.tar.xz | |
net: ipv6: Add string_to_ip6 converter
This functions is used as a converter from IPv6 address string notation
to struct ip6_addr that is used everywhere in IPv6 implementation. For
example it is used to parse and convert IPv6 address from tftpboot
command. Conversion algorithm uses two passes, first to verify syntax and
locate colons and second pass to read the address. In case of valid IPv6
address it returns 0.
Examples of valid strings:
2001:db8::0:1234:1
2001:0db8:0000:0000:0000:0000:1234:0001
::1
::ffff:192.168.1.1
Examples of invalid strings
2001:db8::0::0 (:: can only appear once)
2001:db8:192.168.1.1::1 (v4 part can only appear at the end)
192.168.1.1 (we don't implicity map v4)
Series-changes: 3
- Added function description
- Added length parameter to string_to_ip6()
Series-changes: 4
- Fixed function description style
Signed-off-by: Viacheslav Mitrofanov <v.v.mitrofanov@yadro.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net6.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net6.h b/include/net6.h index 78981877ce..50b7120ca3 100644 --- a/include/net6.h +++ b/include/net6.h @@ -174,6 +174,7 @@ extern u32 net_prefix_length; /* Our prefixlength (0 = unknown) */ extern struct in6_addr net_server_ip6; /* Server IPv6 addr (0 = unknown) */ extern bool use_ip6; +#if IS_ENABLED(CONFIG_IPV6) /** * string_to_ip6() - Convert IPv6 string addr to inner IPV6 addr format * @@ -193,11 +194,14 @@ extern bool use_ip6; * @addr: converted IPv6 addr * Return: 0 if conversion successful, -EINVAL if fail */ +int string_to_ip6(const char *s, size_t len, struct in6_addr *addr); +#else static inline int string_to_ip6(const char *s, size_t len, struct in6_addr *addr) { return -EINVAL; } +#endif /** * ip6_is_unspecified_addr() - Check if IPv6 addr is not set i.e. is zero |