hoelee/cloudflared
1
0
Fork 0
mirror of https://github.com/cloudflare/cloudflared.git synced 2025-07-28 05:19:57 +00:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

TUN-2748: Insecure randomness vulnerability in github.com/miekg/dns

Browse Source
This commit is contained in:
Areg Harutyunyan
2020-02-21 15:53:11 +00:00
parent 7b81cf8aa6
commit 6624a24040
116 changed files with 3885 additions and 4581 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
vendor/github.com/miekg/dns/privaterr.go generated vendored
View File

@@ -1,9 +1,6 @@
package dns
import (
"fmt"
"strings"
)
import "strings"
// PrivateRdata is an interface used for implementing "Private Use" RR types, see
// RFC 6895. This allows one to experiment with new RR types, without requesting an
@@ -18,7 +15,7 @@ type PrivateRdata interface {
// Unpack is used when unpacking a private RR from a buffer.
// TODO(miek): diff. signature than Pack, see edns0.go for instance.
Unpack([]byte) (int, error)
// Copy copies the Rdata.
// Copy copies the Rdata into the PrivateRdata argument.
Copy(PrivateRdata) error
// Len returns the length in octets of the Rdata.
Len() int
@@ -29,22 +26,8 @@ type PrivateRdata interface {
type PrivateRR struct {
Hdr RR_Header
Data PrivateRdata
}
func mkPrivateRR(rrtype uint16) *PrivateRR {
// Panics if RR is not an instance of PrivateRR.
rrfunc, ok := TypeToRR[rrtype]
if !ok {
panic(fmt.Sprintf("dns: invalid operation with Private RR type %d", rrtype))
}
anyrr := rrfunc()
rr, ok := anyrr.(*PrivateRR)
if !ok {
panic(fmt.Sprintf("dns: RR is not a PrivateRR, TypeToRR[%d] generator returned %T", rrtype, anyrr))
}
return rr
generator func() PrivateRdata // for copy
}
// Header return the RR header of r.
@@ -61,13 +44,12 @@ func (r *PrivateRR) len(off int, compression map[string]struct{}) int {
func (r *PrivateRR) copy() RR {
// make new RR like this:
rr := mkPrivateRR(r.Hdr.Rrtype)
rr.Hdr = r.Hdr
rr := &PrivateRR{r.Hdr, r.generator(), r.generator}
err := r.Data.Copy(rr.Data)
if err != nil {
panic("dns: got value that could not be used to copy Private rdata")
if err := r.Data.Copy(rr.Data); err != nil {
panic("dns: got value that could not be used to copy Private rdata: " + err.Error())
}
return rr
}
@@ -86,7 +68,7 @@ func (r *PrivateRR) unpack(msg []byte, off int) (int, error) {
return off, err
}
func (r *PrivateRR) parse(c *zlexer, origin, file string) *ParseError {
func (r *PrivateRR) parse(c *zlexer, origin string) *ParseError {
var l lex
text := make([]string, 0, 2) // could be 0..N elements, median is probably 1
Fetch:
@@ -103,7 +85,7 @@ Fetch:
err := r.Data.Parse(text)
if err != nil {
return &ParseError{file, err.Error(), l}
return &ParseError{"", err.Error(), l}
}
return nil
@@ -116,7 +98,7 @@ func (r1 *PrivateRR) isDuplicate(r2 RR) bool { return false }
func PrivateHandle(rtypestr string, rtype uint16, generator func() PrivateRdata) {
rtypestr = strings.ToUpper(rtypestr)
TypeToRR[rtype] = func() RR { return &PrivateRR{RR_Header{}, generator()} }
TypeToRR[rtype] = func() RR { return &PrivateRR{RR_Header{}, generator(), generator} }
TypeToString[rtype] = rtypestr
StringToType[rtypestr] = rtype
}