Add sockets implementation of mysql starttls

This is the simplest direct socket implementation of the MySQL STARTTLS
protocol.

This is a binary protocol, so it requires a new stream based send
(instead of the current line based send).
This commit is contained in:
Steven Danneman 2017-06-30 15:54:39 -07:00
parent a8ae90137d
commit 8be69e9789

View File

@ -6883,11 +6883,18 @@ starttls_line() {
return 0
}
# Line based send with newline characters appended
starttls_just_send(){
debugme echo -e "C: $1"
echo -ne "$1\r\n" >&5
}
# Stream based send
starttls_just_send2(){
debugme echo -e "C: $1"
echo -ne "$1" >&5
}
starttls_just_read(){
debugme echo "=== just read banner ==="
if [[ "$DEBUG" -ge 2 ]]; then
@ -7015,9 +7022,20 @@ starttls_postgres_dialog() {
starttls_mysql_dialog() {
debugme echo "=== starting mysql STARTTLS dialog ==="
debugme echo "mysql socket dialog not yet implemented"
local login_request="
, 20, 00, 00, 01, # payload_length, sequence_id
85, ae, ff, 00, # capability flags, CLIENT_SSL always set
00, 00, 00, 01, # max-packet size
21, # character set
00, 00, 00, 00, 00, 00, 00, 00, # string[23] reserved (all [0])
00, 00, 00, 00, 00, 00, 00, 00,
00, 00, 00, 00, 00, 00, 00"
code2network "${login_request}"
starttls_just_read && debugme echo -e "\nreceived server greeting" &&
starttls_just_send2 "$NW_STR" && debugme echo "initiated STARTTLS"
# TODO: We could detect if the server supports STARTTLS via the "Server Capabilities"
# bit field, but we'd need to parse the binary stream, with greater precision than regex.
local ret=$?
debugme echo "=== finished mysql STARTTLS dialog with ${ret} ==="
return $ret
}