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cpu: add -n flag for the remote site to allow "none" authentification method (inspired from sources cpu-noauth patch)

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This commit is contained in:
cinap_lenrek 2013-12-05 22:39:43 +01:00
parent 919863dab3
commit 5c000bbe63
2 changed files with 24 additions and 2 deletions
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17
sys/man/1/cpu
View file

@ -30,6 +30,8 @@ cpu \- connection to CPU server
.PP
.B cpu
[
.B -n
] [
.B -A
.I address
] [
@ -127,6 +129,11 @@ back to
This is used if the local host is in a different protection domain than
the server or if the user wants to log into the server as a different
user.
.TP
.B none
This skips authentication. This requires the
.IR -n
flag to be specified on the remote side.
.PD
.PP
The
@ -181,6 +188,16 @@ flag is similar but simulates the pre-9P2000 version
of the
.I cpu
protocol.
The
.B -n
option allows using the
.B none
authentication method for incoming connections and must be
specified before the
.B -R
and
.B -O
flags.
.PP
The
.B -p

9
sys/src/cmd/cpu.c
View file

@ -30,6 +30,7 @@ int notechan;
int exportpid;
char *system;
int cflag;
int nflag;
int dbg;
char *user;
char *patternfile;
@ -59,7 +60,7 @@ struct AuthMethod {
{
{ "p9", p9auth, srvp9auth,},
{ "netkey", netkeyauth, netkeysrvauth,},
// { "none", noauth, srvnoauth,},
{ "none", noauth, srvnoauth,},
{ nil, nil}
};
AuthMethod *am = authmethod; /* default is p9 */
@ -176,6 +177,10 @@ main(int argc, char **argv)
case 'f':
/* ignored but accepted for compatibility */
break;
case 'n':
/* must be specified before -R/-O */
nflag++;
break;
case 'A':
anstring = EARGF(usage());
break;
@ -349,7 +354,7 @@ remoteside(int old)
if(n < 0)
fatal("authenticating: %r");
}
if(setamalg(cmd) < 0){
if(setamalg(cmd) < 0 || (nflag == 0 && am->sf == srvnoauth)) {
writestr(fd, "unsupported auth method", nil, 0);
fatal("bad auth method %s", cmd);
} else