Chapril/xmpp.chapril.org-ejabberd
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Teach acl ip matching about ipv4 mapped ipv6 addresses

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This commit is contained in:
Paweł Chmielowski 2018-05-04 09:52:06 +02:00
parent 410db89167
commit ca94cbfd31
1 changed files with 19 additions and 7 deletions
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24
src/acl.erl
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@ -36,7 +36,7 @@
any_rules_allowed/3, transform_options/1, opt_type/1, any_rules_allowed/3, transform_options/1, opt_type/1,
acl_rule_matches/3, acl_rule_verify/1, access_matches/3, acl_rule_matches/3, acl_rule_verify/1, access_matches/3,
transform_access_rules_config/1, transform_access_rules_config/1,
parse_ip_netmask/1, parse_ip_netmask/1, ip_matches_mask/3,
access_rules_validator/1, shaper_rules_validator/1, access_rules_validator/1, shaper_rules_validator/1,
normalize_spec/1, resolve_access/2]). normalize_spec/1, resolve_access/2]).
%% gen_server callbacks %% gen_server callbacks
@ -447,9 +447,9 @@ acl_rule_matches({acl, Name}, Data, Host) ->
RawACLs = lists:map(fun(#acl{aclspec = R}) -> R end, ACLs), RawACLs = lists:map(fun(#acl{aclspec = R}) -> R end, ACLs),
any_acl_rules_matches(RawACLs, Data, Host); any_acl_rules_matches(RawACLs, Data, Host);
acl_rule_matches({ip, {Net, Mask}}, #{ip := {IP, _Port}}, _Host) -> acl_rule_matches({ip, {Net, Mask}}, #{ip := {IP, _Port}}, _Host) ->
is_ip_match(IP, Net, Mask); ip_matches_mask(IP, Net, Mask);
acl_rule_matches({ip, {Net, Mask}}, #{ip := IP}, _Host) -> acl_rule_matches({ip, {Net, Mask}}, #{ip := IP}, _Host) ->
is_ip_match(IP, Net, Mask); ip_matches_mask(IP, Net, Mask);
acl_rule_matches({user, {U, S}}, #{usr := {U, S, _}}, _Host) -> acl_rule_matches({user, {U, S}}, #{usr := {U, S, _}}, _Host) ->
true; true;
acl_rule_matches({user, U}, #{usr := {U, S, _}}, _Host) -> acl_rule_matches({user, U}, #{usr := {U, S, _}}, _Host) ->
@ -549,18 +549,30 @@ is_glob_match(String, Glob) ->
is_regexp_match(String, is_regexp_match(String,
ejabberd_regexp:sh_to_awk(Glob)). ejabberd_regexp:sh_to_awk(Glob)).
is_ip_match({_, _, _, _} = IP, {_, _, _, _} = Net, Mask) -> ip_matches_mask({_, _, _, _} = IP, {_, _, _, _} = Net, Mask) ->
IPInt = ip_to_integer(IP), IPInt = ip_to_integer(IP),
NetInt = ip_to_integer(Net), NetInt = ip_to_integer(Net),
M = bnot (1 bsl (32 - Mask) - 1), M = bnot (1 bsl (32 - Mask) - 1),
IPInt band M =:= NetInt band M; IPInt band M =:= NetInt band M;
is_ip_match({_, _, _, _, _, _, _, _} = IP, ip_matches_mask({_, _, _, _, _, _, _, _} = IP,
{_, _, _, _, _, _, _, _} = Net, Mask) -> {_, _, _, _, _, _, _, _} = Net, Mask) ->
IPInt = ip_to_integer(IP), IPInt = ip_to_integer(IP),
NetInt = ip_to_integer(Net), NetInt = ip_to_integer(Net),
M = bnot (1 bsl (128 - Mask) - 1), M = bnot (1 bsl (128 - Mask) - 1),
IPInt band M =:= NetInt band M; IPInt band M =:= NetInt band M;
is_ip_match(_, _, _) -> ip_matches_mask({_, _, _, _} = IP,
{0, 0, 0, 0, 0, 16#FFFF, _, _} = Net, Mask) ->
IPInt = ip_to_integer({0, 0, 0, 0, 0, 16#FFFF, 0, 0}) + ip_to_integer(IP),
NetInt = ip_to_integer(Net),
M = bnot (1 bsl (128 - Mask) - 1),
IPInt band M =:= NetInt band M;
ip_matches_mask({0, 0, 0, 0, 0, 16#FFFF, _, _} = IP,
{_, _, _, _} = Net, Mask) ->
IPInt = ip_to_integer(IP) - ip_to_integer({0, 0, 0, 0, 0, 16#FFFF, 0, 0}),
NetInt = ip_to_integer(Net),
M = bnot (1 bsl (32 - Mask) - 1),
IPInt band M =:= NetInt band M;
ip_matches_mask(_, _, _) ->
false. false.
ip_to_integer({IP1, IP2, IP3, IP4}) -> ip_to_integer({IP1, IP2, IP3, IP4}) ->