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-rw-r--r--src/lib/cert/x509/name_constraint.cpp138
-rw-r--r--src/lib/cert/x509/x509path.cpp2
2 files changed, 72 insertions, 68 deletions
diff --git a/src/lib/cert/x509/name_constraint.cpp b/src/lib/cert/x509/name_constraint.cpp
index d763076cb..a1ed19856 100644
--- a/src/lib/cert/x509/name_constraint.cpp
+++ b/src/lib/cert/x509/name_constraint.cpp
@@ -33,7 +33,7 @@ GeneralName::GeneralName(const std::string& v) : GeneralName()
void GeneralName::encode_into(class DER_Encoder&) const
{
- throw std::runtime_error("General Name encoding not implemented");
+ throw Exception("General Name encoding not implemented");
}
void GeneralName::decode_from(class BER_Decoder& ber)
@@ -84,6 +84,15 @@ void GeneralName::decode_from(class BER_Decoder& ber)
m_type = "IP";
m_name = ipv4_to_string(load_be<u32bit>(ip.data(),0)) + "/" + ipv4_to_string(load_be<u32bit>(net.data(),0));
}
+ else if(obj.value.size() == 32)
+ {
+ throw Decoding_Error("Unsupported IPv6 name constraint");
+ }
+ else
+ {
+ throw Decoding_Error("Invalid IP name constraint size " +
+ std::to_string(obj.value.size()));
+ }
}
else
{
@@ -93,88 +102,83 @@ void GeneralName::decode_from(class BER_Decoder& ber)
GeneralName::MatchResult GeneralName::matches(const X509_Certificate& cert) const
{
- if(type() == "DNS" || type() == "DN" || type() == "IP")
- {
- std::vector<std::string> nam;
- std::function<bool(const GeneralName*,const std::string&)> match_fn;
-
- if(type() == "DNS")
- {
- match_fn = std::mem_fn(&GeneralName::matches_dns);
- nam = cert.subject_info("DNS");
-
- if(nam.empty())
- {
- nam = cert.subject_info("CN");
- }
- }
- else if(type() == "DN")
- {
- std::stringstream ss;
+ std::vector<std::string> nam;
+ std::function<bool(const GeneralName*,const std::string&)> match_fn;
- match_fn = std::mem_fn(&GeneralName::matches_dn);
- ss << cert.subject_dn();
+ if(type() == "DNS")
+ {
+ match_fn = std::mem_fn(&GeneralName::matches_dns);
+ nam = cert.subject_info("DNS");
- nam.push_back(ss.str());
- }
- else if(type() == "IP")
+ if(nam.empty())
{
- match_fn = std::mem_fn(&GeneralName::matches_ip);
- nam = cert.subject_info("IP");
+ nam = cert.subject_info("CN");
}
+ }
+ else if(type() == "DN")
+ {
+ match_fn = std::mem_fn(&GeneralName::matches_dn);
- else
- {
- throw Unsupported_Argument("Unsupported Name Constraint");
- }
+ std::stringstream ss;
+ ss << cert.subject_dn();
+ nam.push_back(ss.str());
+ }
+ else if(type() == "IP")
+ {
+ match_fn = std::mem_fn(&GeneralName::matches_ip);
+ nam = cert.subject_info("IP");
+ }
+ else
+ {
+ return MatchResult::UnknownType;
+ }
- if(nam.empty())
- {
- return MatchResult::NotFound;
- }
+ if(nam.empty())
+ {
+ return MatchResult::NotFound;
+ }
- bool some = false;
- bool all = true;
+ bool some = false;
+ bool all = true;
- for(const std::string& n: nam)
- {
- bool m = match_fn(this,n);
+ for(const std::string& n: nam)
+ {
+ bool m = match_fn(this,n);
- some |= m;
- all &= m;
- }
+ some |= m;
+ all &= m;
+ }
- if(all)
- {
- return MatchResult::All;
- }
- else if(some)
- {
- return MatchResult::Some;
- }
- else
- {
- return MatchResult::None;
- }
+ if(all)
+ {
+ return MatchResult::All;
+ }
+ else if(some)
+ {
+ return MatchResult::Some;
}
else
{
- return MatchResult::UnknownType;
+ return MatchResult::None;
}
}
bool GeneralName::matches_dns(const std::string& nam) const
{
- if(nam.size() == name().size())
- return nam == name();
- else if(name().size() > nam.size())
- return false;
- else // nam.size() > name().size()
- {
- std::string constr = name().front() == '.' ? name() : "." + name();
- // constr is suffix of nam
- return constr == nam.substr(nam.size() - constr.size(),constr.size());
- }
+ if(nam.size() == name().size())
+ {
+ return nam == name();
+ }
+ else if(name().size() > nam.size())
+ {
+ return false;
+ }
+ else // name.size() < nam.size()
+ {
+ std::string constr = name().front() == '.' ? name() : "." + name();
+ // constr is suffix of nam
+ return constr == nam.substr(nam.size() - constr.size(),constr.size());
+ }
}
bool GeneralName::matches_dn(const std::string& nam) const
@@ -227,8 +231,8 @@ std::ostream& operator<<(std::ostream& os, const GeneralName& gn)
GeneralSubtree::GeneralSubtree(const std::string& v) : GeneralSubtree()
{
size_t p0, p1;
- size_t min = stoull(v,&p0,10);
- size_t max = stoull(v.substr(p0 + 1),&p1,10);
+ size_t min = std::stoull(v, &p0, 10);
+ size_t max = std::stoull(v.substr(p0 + 1), &p1, 10);
GeneralName gn(v.substr(p0 + p1 + 2));
if(p0 > 0 && p1 > 0)
diff --git a/src/lib/cert/x509/x509path.cpp b/src/lib/cert/x509/x509path.cpp
index df286cfd7..dd9df6f51 100644
--- a/src/lib/cert/x509/x509path.cpp
+++ b/src/lib/cert/x509/x509path.cpp
@@ -150,7 +150,7 @@ check_chain(const std::vector<X509_Certificate>& cert_path,
cert_status.at(i).insert(Certificate_Status_Code::NAME_CONSTRAINT_ERROR);
// Check that all subordinate certs pass the name constraint
- for(int j = i; j >= 0; j--)
+ for(size_t j = 0; j <= i; ++j)
{
if(i == j && at_self_signed_root)
continue;