|
RFC 3986 defines the following grammar for a URI:
URI = scheme
":" hier-part [ "?" query ] [ "#" fragment ] hier-part =
"//" authority path-abempty
/ path-absolute
/ path-rootless
/ path-empty A SIP URI falls into the ‘path-rootless’
rule: path-rootless = segment-nz *( "/" segment )
segment-nz = 1*pchar
pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
pct-encoded = "%" HEXDIG HEXDIG unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
path-rootless does not allow “[“ or “]”
characters, so the SIP-URI grammar for IPV6 violates RFC 3986 grammar. SIP-URI
= "sip:" [ userinfo ] hostport
uri-parameters [ headers ] hostport
= host [ ":" port ] host
= hostname / IPv4address / IPv6reference hostname
= *( domainlabel "." ) toplabel [ "." ] domainlabel =
alphanum
/ alphanum *( alphanum / "-" ) alphanum toplabel
= ALPHA / ALPHA *( alphanum / "-" ) alphanum IPv4address = 1*3DIGIT
"." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT IPv6reference = "["
IPv6address "]" <-- *** violates RFC 3986 *** IPv6address = hexpart [
":" IPv4address ] hexpart
= hexseq / hexseq "::" [ hexseq ] / "::" [ hexseq ] hexseq
= hex4 *( ":" hex4) hex4
= 1*4HEXDIG port
= 1*DIGIT These, though valid SIP URIs are not valid URIs: <sip:[2001:db8::10]> <sip:caller at [2001:db8::1]> Has this already been addressed? Regards, Mike |
_______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use sip-implementors at cs.columbia.edu for questions on current sip Use sipping at ietf.org for new developments on the application of sip