This allows us to use a consistent size for the dnsFlags field.
across different files (previously some would use uint16_t and some uint32_t).
It also improves type safety - making sure we don't pass in the wrong value
to DNSFlags.
Depends on D164856
Differential Revision: https://phabricator.services.mozilla.com/D164857
This allows us to use a consistent size for the dnsFlags field.
across different files (previously some would use uint16_t and some uint32_t).
It also improves type safety - making sure we don't pass in the wrong value
to DNSFlags.
Depends on D164856
Differential Revision: https://phabricator.services.mozilla.com/D164857
This allows us to use a consistent size for the dnsFlags field.
across different files (previously some would use uint16_t and some uint32_t).
It also improves type safety - making sure we don't pass in the wrong value
to DNSFlags.
Depends on D164856
Differential Revision: https://phabricator.services.mozilla.com/D164857
This patch consists of the changes generated by running
`./mach static-analysis check --fix` on `netwerk/dns` after adding the
`modernize-use-default-member-init` clang-tidy lint.
Some additional changes were made by hand to ensure consistent results.
This patch ensures that all member variables are initialized in the header,
so when adding or changing constructors we don't miss one resulting in
uninitialized memory.
Differential Revision: https://phabricator.services.mozilla.com/D109339
This patch consists of the changes generated by running
`./mach static-analysis check --fix` on `netwerk/dns` after adding the
`modernize-use-default-member-init` clang-tidy lint.
Some additional changes were made by hand to ensure consistent results.
This patch ensures that all member variables are initialized in the header,
so when adding or changing constructors we don't miss one resulting in
uninitialized memory.
Differential Revision: https://phabricator.services.mozilla.com/D109339
This patch adds the nsIDNSResolverInfo interface which is used to hold
information about the resolver to be used in a DNS resolution.
We use this to merge all of the *WithTRRServer resolve functions into one.
Passing a resolver info will use that object when appropriate. No resolver
info means that we default to using the system resolver, or the default TRR
resolver.
This patch also converts the RESOLVE_TYPE_* flags into a cenum and adds
the resolveType as a parameter to asyncResolve thus removing the need
to have asyncResolveByType methods.
Differential Revision: https://phabricator.services.mozilla.com/D86176
This patch adds the nsIDNSResolverInfo interface which is used to hold
information about the resolver to be used in a DNS resolution.
We use this to merge all of the *WithTRRServer resolve functions into one.
Passing a resolver info will use that object when appropriate. No resolver
info means that we default to using the system resolver, or the default TRR
resolver.
This patch also converts the RESOLVE_TYPE_* flags into a cenum and adds
the resolveType as a parameter to asyncResolve thus removing the need
to have asyncResolveByType methods.
Differential Revision: https://phabricator.services.mozilla.com/D86176
- modify line wrap up to 80 chars; (tw=80)
- modify size of tab to 2 chars everywhere; (sts=2, sw=2)
--HG--
extra : rebase_source : 7eedce0311b340c9a5a1265dc42d3121cc0f32a0
extra : amend_source : 9cb4ffdd5005f5c4c14172390dd00b04b2066cd7
The DNS service was shutdown and restarted again in several scenarios,
for example when one of its prefs changed and by nsIOService when going
offline/online. The DNSService restart dragged the resolver, TRRService
and others with it and they too were thus restarted.
Most notably this hurt TRR resolving, as the restart caused short gaps
in time when there was no TRRService available and nsHostResolver
defaults to TRR Mode "native" if there's no TRRservice up, causing the
name resolver to occasionally use the wrong or unexpected resolver even
though TRR is enabled.
The resolver restart also flushed the DNS cache which is now avoided.
It is also a performance gain.
MozReview-Commit-ID: pp4Y8bNQJk
--HG--
extra : rebase_source : 9e3b3e6c0df16b8ca6287d8045f594026ae9ad6d
Provides an optional resolver mechanism for Firefox that allows running
together with or instead of the native resolver.
TRR offers resolving of host names using a dedicated DNS-over-HTTPS server
(HTTPS is required, HTTP/2 is preferable).
DNS-over-HTTPS (DOH) allows DNS resolves with enhanced privacy, secure
transfers and improved performance.
To keep the failure rate at a minimum, the TRR system manages a dynamic
persistent blacklist for host names that can't be resolved with DOH but works
with the native resolver. Blacklisted entries will not be retried over DOH for
a couple of days. "localhost" and names in the ".local" TLD will not be
resolved via DOH.
TRR is preffed OFF by default and you need to set a URI for an available DOH
server to be able to use it. Since the URI for DOH is set with a name itself,
it may have to use the native resolver for bootstrapping. (Optionally, the
user can set the IP address of the DOH server in a pref to avoid the required
initial native resolve.)
When TRR starts up, it will first verify that it works by checking a
"confirmation" domain name. This confirmation domain is a pref by default set
to "example.com". TRR will also by default await the captive-portal detection
to raise its green flag before getting activated.
All prefs for TRR are under the "network.trr" hierarchy.
The DNS-over-HTTPS spec: https://tools.ietf.org/html/draft-ietf-doh-dns-over-https-03
MozReview-Commit-ID: GuuU6vjTjlm
--HG--
extra : rebase_source : 53fcca757334090ac05fec540ef29d109d5ceed3
Right now, NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR expects singleton
constructors to return already-addrefed raw pointers, and while it accepts
constructors that return already_AddRefed, most existing don't do so.
Meanwhile, the convention elsewhere is that a raw pointer return value is
owned by the callee, and that the caller needs to addref it if it wants to
keep its own reference to it.
The difference in convention makes it easy to leak (I've definitely caused
more than one shutdown leak this way), so it would be better if we required
the singleton getters to return an explicit already_AddRefed, which would
behave the same for all callers.
This also cleans up several singleton constructors that left a dangling
pointer to their singletons when their initialization methods failed, when
they released their references without clearing their global raw pointers.
MozReview-Commit-ID: 9peyG4pRYcr
--HG--
extra : rebase_source : 2f5bd89c17cb554541be38444672a827c1392f3f
// When non empty all non-localhost DNS queries (including IP addresses)
// resolve to this value. The value can be a name or an IP address.
// domains mapped to localhost with localDomains stay localhost.
pref("network.dns.forceResolve", "");
Testing is the primary use case here - replay captive data on a 'fake
server' by directing all traffic to it at the DNS level. Chrome has
something similar.
MozReview-Commit-ID: 7AOgQZpZKec
--HG--
extra : rebase_source : ad2648a701fffecaae47cbfae17e7aa6badd50ee
