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handle new protocol

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@11378 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
2002-09-04 20:32:18 +00:00
parent 4c81cc848e
commit cfcf1125e9
1 changed files with 46 additions and 72 deletions
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118
appl/kf/kf.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 1997 - 2000 Kungliga Tekniska H<>gskolan
* Copyright (c) 1997 - 2000, 2002 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
@@ -38,7 +38,7 @@ krb5_context context;
static int help_flag;
static int version_flag;
static char *port_str;
const char *service = SERVICE;
const char *service = KF_SERVICE;
const char *remote_name = NULL;
int forwardable = 0;
const char *ccache_name = NULL;
@@ -107,7 +107,7 @@ client_setup(krb5_context *context, int *argc, char **argv)
}
if (port == 0)
port = krb5_getportbyname (*context, PORT, "tcp", PORT_NUM);
port = krb5_getportbyname (*context, KF_PORT_NAME, "tcp", KF_PORT_NUM);
if(*argc - optind < 1)
usage(1, args, num_args);
@@ -122,22 +122,19 @@ client_setup(krb5_context *context, int *argc, char **argv)
*/
static int
proto (int sock, const char *hostname, const char *service)
proto (int sock, const char *hostname, const char *service,
char *message, size_t len)
{
krb5_auth_context auth_context;
krb5_error_code status;
krb5_principal server;
krb5_data data;
krb5_data packet;
krb5_data data_send;
u_int32_t len, net_len;
krb5_ccache ccache;
krb5_creds creds;
krb5_kdc_flags flags;
krb5_principal principal;
char ret_string[10];
ssize_t n;
status = krb5_auth_con_init (context, &auth_context);
if (status) {
@@ -166,10 +163,10 @@ proto (int sock, const char *hostname, const char *service)
status = krb5_sendauth (context,
&auth_context,
&sock,
VERSION,
KF_VERSION_1,
NULL,
server,
AP_OPTS_MUTUAL_REQUIRED,
AP_OPTS_MUTUAL_REQUIRED | AP_OPTS_USE_SUBKEY,
NULL,
NULL,
NULL,
@@ -181,27 +178,19 @@ proto (int sock, const char *hostname, const char *service)
return 1;
}
if (remote_name == NULL) {
remote_name = get_default_username ();
if (remote_name == NULL)
errx (1, "who are you?");
}
if (ccache_name == NULL)
ccache_name = "";
krb5_data_zero(&data_send);
data_send.data = (void *)remote_name;
data_send.length = strlen(remote_name) + 1;
status = krb5_write_message(context, &sock, &data_send);
status = krb5_write_priv_message(context, auth_context, &sock, &data_send);
if (status) {
krb5_warn (context, status, "krb5_write_message");
return 1;
}
if (ccache_name == NULL)
ccache_name = "";
data_send.data = (void *)ccache_name;
data_send.length = strlen(ccache_name)+1;
status = krb5_write_message(context, &sock, &data_send);
status = krb5_write_priv_message(context, auth_context, &sock, &data_send);
if (status) {
krb5_warn (context, status, "krb5_write_message");
return 1;
@@ -223,13 +212,12 @@ proto (int sock, const char *hostname, const char *service)
creds.client = principal;
status = krb5_build_principal (context,
&creds.server,
strlen(principal->realm),
principal->realm,
KRB5_TGS_NAME,
principal->realm,
NULL);
status = krb5_make_principal (context,
&creds.server,
principal->realm,
KRB5_TGS_NAME,
principal->realm,
NULL);
if (status) {
krb5_warn (context, status, "krb5_build_principal");
@@ -254,60 +242,36 @@ proto (int sock, const char *hostname, const char *service)
return 1;
}
status = krb5_mk_priv (context,
auth_context,
&data,
&packet,
NULL);
status = krb5_write_priv_message(context, auth_context, &sock, &data);
if (status) {
krb5_warn (context, status, "krb5_mk_priv");
return 1;
}
len = packet.length;
net_len = htonl(len);
if (krb5_net_write (context, &sock, &net_len, 4) != 4) {
krb5_warn (context, errno, "krb5_net_write");
return 1;
}
if (krb5_net_write (context, &sock, packet.data, len) != len) {
krb5_warn (context, errno, "krb5_net_write");
return 1;
}
krb5_data_free (&data);
n = krb5_net_read (context, &sock, &net_len, 4);
if (n == 0) {
krb5_warnx (context, "EOF in krb5_net_read");
status = krb5_read_priv_message(context, auth_context, &sock, &data);
if (status) {
krb5_warn (context, status, "krb5_mk_priv");
return 1;
}
if (n < 0) {
krb5_warn (context, errno, "krb5_net_read");
return 1;
if(data.length >= len) {
krb5_warnx (context, "returned string is too long, truncating");
memcpy(message, data.data, len);
message[len - 1] = '\0';
} else {
memcpy(message, data.data, data.length);
message[data.length] = '\0';
}
len = ntohl(net_len);
if (len >= sizeof(ret_string)) {
krb5_warnx (context, "too long string back from %s", hostname);
return 1;
}
n = krb5_net_read (context, &sock, ret_string, len);
if (n == 0) {
krb5_warnx (context, "EOF in krb5_net_read");
return 1;
}
if (n < 0) {
krb5_warn (context, errno, "krb5_net_read");
return 1;
}
ret_string[sizeof(ret_string) - 1] = '\0';
krb5_data_free (&data);
return(strcmp(ret_string,"ok"));
return(strcmp(message, "ok"));
}
static int
doit (const char *hostname, int port, const char *service)
doit (const char *hostname, int port, const char *service,
char *message, size_t len)
{
struct addrinfo *ai, *a;
struct addrinfo hints;
@@ -337,7 +301,7 @@ doit (const char *hostname, int port, const char *service)
continue;
}
freeaddrinfo (ai);
return proto (s, hostname, service);
return proto (s, hostname, service, message, len);
}
warnx ("failed to contact %s", hostname);
freeaddrinfo (ai);
@@ -353,9 +317,19 @@ main(int argc, char **argv)
argcc = argc;
port = client_setup(&context, &argcc, argv);
if (remote_name == NULL) {
remote_name = get_default_username ();
if (remote_name == NULL)
errx (1, "who are you?");
}
for (i = argcc;i < argc; i++) {
ret = doit (argv[i], port, service);
warnx ("%s %s", argv[i], ret ? "failed" : "ok");
char message[128];
ret = doit (argv[i], port, service, message, sizeof(message));
if(ret == 0)
warnx ("%s: ok", argv[i]);
else
warnx ("%s: failed: %s", argv[i], message);
}
return(ret);
}