int Check_secure_perms( struct line_list *options, int from_server,
char *error, int errlen )
{
/*
* line 1 - CLIENT=xxxx - client authentication
* line 2 - SERVER=xxxx - server authentication
* ... - FROM=xxxx - from
* line 3 - INPUT=\00x - command line
*/
char *authfrom, *authuser;
authfrom = Find_str_value(options,AUTHFROM);
if( !authfrom ) authfrom = Find_str_value(options,FROM);
authuser = Find_str_value(options,AUTHUSER);
if( !from_server ){
if( !authuser && authfrom ) authuser = authfrom;
}
if( !authuser ) authuser = Find_str_value(options,CLIENT);
Set_str_value(options, AUTHTYPE, Perm_check.authtype );
Set_str_value(options, AUTHFROM, authfrom );
Set_str_value(options, AUTHUSER, authuser );
Perm_check.authfrom = Find_str_value(options,AUTHFROM);
Perm_check.authuser = authuser = Find_str_value(options,AUTHUSER);
if( !authuser ){
plp_snprintf( error, errlen, "Printer %s@%s: missing authentication client id",
Printer_DYN,Report_server_as_DYN?Report_server_as_DYN:ShortHost_FQDN );
return( JABORT );
}
Perm_check.authca = Find_str_value(options,AUTHCA);
DEBUGFC(DRECV1)Dump_line_list("Check_secure_perms - after",options);
DEBUGFC(DRECV1)Dump_perm_check( "Check_secure_perms - checking", &Perm_check );
return(0);
}
int Receive_secure( int *sock, char *input )
{
char *printername;
char error[SMALLBUFFER]; /* error message */
char *authtype;
char *cf, *s;
char *jobsize = 0;
char *user = 0;
int tempfd = -1;
int ack, status, from_server;
struct line_list args, header_info, info;
struct stat statb;
char *tempfile = 0;
struct security *security = 0;
Name = "RCVSEC";
memset( error, 0, sizeof(error));
ack = 0;
status = 0;
DEBUGF(DRECV1)("Receive_secure: input line '%s'", input );
Init_line_list( &args );
Init_line_list( &header_info );
Init_line_list( &info );
Split(&args,input+1,Whitespace,0,0,0,0,0,0);
DEBUGFC(DRECV1)Dump_line_list("Receive_secure - input", &args);
if( args.count != 5 && args.count != 4 ){
SNPRINTF( error+1, sizeof(error)-1)
_("bad command line '%s'"), input );
ack = ACK_FAIL; /* no retry, don't send again */
status = JFAIL;
goto error;
}
int Job_control( int *sock, char *input )
{
#ifdef REMOVE
struct line_list tokens;
char error[LINEBUFFER];
int tokencount;
int i, action, permission;
char *name, *user = 0, *s, *lpc_command;
/* get the format */
Init_line_list(&tokens);
error[0] = 0;
Name = "Job_control";
++input;
if( (s = safestrchr(input, '\n' )) ) *s = 0;
DEBUGF(DCTRL1)("Job_control: socket %d, doing '%s'", *sock, input );
/* check printername for characters, underscore, digits */
Split(&tokens,input,Whitespace,0,0,0,0,0,0);
#ifdef ORIGINAL_DEBUG//JY@1020
DEBUGFC(DCTRL2)Dump_line_list("Job_control - input", &tokens);
#endif
tokencount = tokens.count;
if( tokencount < 3 ){
SNPRINTF( error, sizeof(error))
_("bad control command '%s'"), input );
goto error;
}
/*************************************************************************
* Receive_secure() - receive a secure transfer
*************************************************************************/
int Receive_secure( int *sock, char *input )
{
char *printername;
char error[SMALLBUFFER]; /* error message */
char *authtype;
char *cf, *s;
char *jobsize = 0;
char *user = 0;
int tempfd = -1;
int ack, status, from_server;
struct line_list args, header_info, info;
struct stat statb;
char *tempfile = 0;
const struct security *security = 0;
Name = "RCVSEC";
memset( error, 0, sizeof(error));
ack = 0;
status = 0;
DEBUGF(DRECV1)("Receive_secure: input line '%s'", input );
Init_line_list( &args );
Init_line_list( &header_info );
Init_line_list( &info );
Split(&args,input+1,Whitespace,0,0,0,0,0,0);
DEBUGFC(DRECV1)Dump_line_list("Receive_secure - input", &args);
if( args.count != 5 && args.count != 4 ){
plp_snprintf( error+1, sizeof(error)-1,
_("bad command line '%s'"), input );
ack = ACK_FAIL; /* no retry, don't send again */
status = JFAIL;
goto error;
}
Check_max(&args,1);
args.list[args.count] = 0;
/*
* \REQ_SECUREprintername C/F user authtype jobsize\n - receive a job
* 0 1 2 3 4
*/
printername = args.list[0];
cf = args.list[1];
user = args.list[2]; /* user is escape encoded */
Unescape(user);
authtype = args.list[3];
Unescape(authtype);
jobsize = args.list[4];
setproctitle( "lpd %s '%s'", Name, printername );
Perm_check.authtype = authtype;
from_server = 0;
if( *cf == 'F' ){
from_server = 1;
}
/* set up the authentication support information */
if( Is_clean_name( printername ) ){
plp_snprintf( error+1, sizeof(error)-1,
_("bad printer name '%s'"), input );
ack = ACK_FAIL; /* no retry, don't send again */
status = JFAIL;
goto error;
}
Set_DYN(&Printer_DYN,printername);
if( Setup_printer( printername, error+1, sizeof(error)-1, 0 ) ){
if( jobsize ){
plp_snprintf( error+1, sizeof(error)-1,
_("bad printer '%s'"), printername );
ack = ACK_FAIL; /* no retry, don't send again */
status = JFAIL;
goto error;
}
} else {
int db, dbf;
db = Debug;
dbf = DbgFlag;
s = Find_str_value(&Spool_control,DEBUG);
if(!s) s = New_debug_DYN;
Parse_debug( s, 0 );
if( !(DRECVMASK & DbgFlag) ){
Debug = db;
DbgFlag = dbf;
} else {
int tdb, tdbf;
tdb = Debug;
tdbf = DbgFlag;
Debug = db;
DbgFlag = dbf;
if( Log_file_DYN ){
tempfd = Checkwrite( Log_file_DYN, &statb,0,0,0);
if( tempfd > 0 && tempfd != 2 ){
dup2(tempfd,2);
close(tempfd);
}
tempfd = -1;
}
Debug = tdb;
DbgFlag = tdbf;
LOGDEBUG("Receive_secure: socket fd %d", *sock);
Dump_line_list("Receive_secure - input", &args);
}
DEBUGF(DRECV1)("Receive_secure: debug '%s', Debug %d, DbgFlag 0x%x",
s, Debug, DbgFlag );
}
if( !(security = Fix_receive_auth(authtype, &info)) ){
plp_snprintf( error+1, sizeof(error)-1,
_("unsupported authentication '%s'"), authtype );
ack = ACK_FAIL; /* no retry, don't send again */
status = JFAIL;
goto error;
}
if( !security->server_receive ){
plp_snprintf( error+1, sizeof(error)-1,
_("no receive method supported for '%s'"), authtype );
ack = ACK_FAIL; /* no retry, don't send again */
status = JFAIL;
goto error;
}
if( jobsize ){
double read_len;
read_len = strtod(jobsize,0);
DEBUGF(DRECV2)("Receive_secure: spooling_disabled %d",
Sp_disabled(&Spool_control) );
if( Sp_disabled(&Spool_control) ){
plp_snprintf( error+1, sizeof(error)-1,
_("%s: spooling disabled"), Printer_DYN );
ack = ACK_RETRY; /* retry */
status = JFAIL;
goto error;
}
if( Max_job_size_DYN > 0 && (read_len+1023)/1024 > Max_job_size_DYN ){
plp_snprintf( error+1, sizeof(error)-1,
_("%s: job size %0.0f is larger than %d K"),
Printer_DYN, read_len, Max_job_size_DYN );
ack = ACK_RETRY;
status = JFAIL;
goto error;
} else if( !Check_space( read_len, Minfree_DYN, Spool_dir_DYN ) ){
plp_snprintf( error+1, sizeof(error)-1,
_("%s: insufficient file space"), Printer_DYN );
ack = ACK_RETRY;
status = JFAIL;
goto error;
}
}
tempfd = Make_temp_fd(&tempfile);
close(tempfd); tempfd = -1;
DEBUGF(DRECV1)("Receive_secure: sock %d, user '%s', jobsize '%s'",
*sock, user, jobsize );
status = security->server_receive( sock, Send_job_rw_timeout_DYN,
user, jobsize, from_server, authtype,
&info,
error+1, sizeof(error)-1,
&header_info,
security, tempfile, Do_secure_work);
error:
DEBUGF(DRECV1)("Receive_secure: status %d, ack %d, error '%s'",
status, ack, error+1 );
if( status ){
if( ack == 0 ) ack = ACK_FAIL;
error[0] = ack;
DEBUGF(DRECV1)("Receive_secure: sending '%s'", error );
(void)Link_send( ShortRemote_FQDN, sock,
Send_query_rw_timeout_DYN, error, safestrlen(error), 0 );
Errorcode = JFAIL;
}
Free_line_list( &args );
Free_line_list( &header_info );
Free_line_list( &info );
close( *sock ); *sock = -1;
Remove_tempfiles();
if( status == 0 && jobsize ){
/* start a new server */
DEBUGF(DRECV1)("Receive_secure: starting server");
if( Server_queue_name_DYN ){
Do_queue_jobs( Server_queue_name_DYN, 0 );
} else {
Do_queue_jobs( Printer_DYN, 0 );
}
}
cleanup(0);
}
static int Do_secure_work( char *jobsize, int from_server,
char *tempfile, struct line_list *header_info )
{
int n, len, linecount = 0, done = 0, fd, status = 0;
char *s, *t;
char buffer[SMALLBUFFER];
char error[SMALLBUFFER];
struct stat statb;
error[0] = 0;
if( (fd = Checkread(tempfile,&statb)) < 0 ){
status = JFAIL;
plp_snprintf( error, sizeof(error),
"Do_secure_work: reopen of '%s' failed - %s",
tempfile, Errormsg(errno));
goto error;
}
buffer[0] = 0;
n = 0;
done = 0;
linecount = 0;
while( !done && n < (int)sizeof(buffer)-1
&& (len = Read_fd_len_timeout( Send_query_rw_timeout_DYN, fd, buffer+n, sizeof(buffer)-1-n )) > 0 ){
buffer[n+len] = 0;
DEBUGF(DRECV1)("Do_secure_work: read %d - '%s'", len, buffer );
while( !done && (s = safestrchr(buffer,'\n')) ){
*s++ = 0;
if( safestrlen(buffer) == 0 ){
done = 1;
break;
}
DEBUGF(DRECV1)("Do_secure_work: line [%d] '%s'", linecount, buffer );
if( (t = strchr(buffer,'=')) ){
*t++ = 0;
Unescape(t);
Set_str_value(header_info, buffer, t );
} else {
switch( linecount ){
case 0:
if( jobsize ){
if( from_server ){
Set_str_value(header_info,CLIENT,buffer);
}
done = 1;
} else {
Set_str_value(header_info,INPUT,buffer); break;
}
break;
case 1:
Set_str_value(header_info,CLIENT,buffer);
done = 1;
break;
}
}
++linecount;
memmove(buffer,s,safestrlen(s)+1);
n = safestrlen(buffer);
}
}
if( fd >= 0 ) close(fd); fd = -1;
DEBUGFC(DRECV1)Dump_line_list("Do_secure_work - header", header_info );
if( (status = Check_secure_perms( header_info, from_server, error, sizeof(error))) ){
goto error;
}
DEBUGFC(DRECV1)Dump_line_list("Do_secure_work - header after check", header_info );
buffer[0] = 0;
if( jobsize ){
if( (fd = Checkread(tempfile, &statb) ) < 0 ){
status = JFAIL;
plp_snprintf( error, sizeof(error),
"Do_secure_work: reopen of '%s' for read failed - %s",
tempfile, Errormsg(errno));
goto error;
}
status = Scan_block_file( fd, error, sizeof(error), header_info );
if( (fd = Checkwrite(tempfile,&statb,O_WRONLY|O_TRUNC,1,0)) < 0 ){
status = JFAIL;
plp_snprintf( error, sizeof(error),
"Do_secure_work: reopen of '%s' for write failed - %s",
tempfile, Errormsg(errno));
goto error;
}
} else {
if( (fd = Checkwrite(tempfile,&statb,O_WRONLY|O_TRUNC,1,0)) < 0 ){
status = JFAIL;
plp_snprintf( error, sizeof(error),
"Do_secure_work: reopen of '%s' for write failed - %s",
tempfile, Errormsg(errno));
goto error;
}
if( (s = Find_str_value(header_info,INPUT)) ){
Dispatch_input( &fd, s, "from secure link" );
}
}
error:
if( fd >= 0 ) close(fd); fd = -1;
DEBUGF(DRECV1)("Do_secure_work: status %d, tempfile '%s', error '%s'",
status, tempfile, error );
if( error[0] ){
DEBUGF(DRECV1)("Do_secure_work: updating tempfile '%s', error '%s'",
tempfile, error );
if( (fd = Checkwrite(tempfile,&statb,O_WRONLY|O_TRUNC,1,0)) < 0 ){
Errorcode = JFAIL;
logerr_die(LOG_INFO, "Do_secure_work: reopen of '%s' for write failed",
tempfile );
}
Write_fd_str(fd,error);
close(fd);
}
DEBUGF(DRECV1)("Do_secure_work: returning %d", status );
return( status );
}
int Receive_job( int *sock, char *input )
{
char line[SMALLBUFFER]; /* line buffer for input */
char error[SMALLBUFFER]; /* line buffer for input */
char buffer[SMALLBUFFER]; /* line buffer for input */
int errlen = sizeof(error);
char *tempfile; /* name of temp file */
double file_len; /* length of file */
double read_len; /* amount to read from sock */
double jobsize = 0; /* size of job */
int ack = 0; /* ack to send */
int status = 0; /* status of the last command */
double len; /* length of last read */
char *s, *filename; /* name of control or data file */
int temp_fd = -1; /* used for file opening and locking */
int filetype; /* type of file - control or data */
int fd; /* for log file */
int hold_fd = -1; /* hold file */
int db, dbf, rlen;
int fifo_fd = -1; /* fifo lock file */
struct line_list files, info, l;
struct job job;
struct stat statb;
#ifdef REMOVE
#ifdef WINDOW_1//JYWeng
//aaaaaa=fopen("/tmp/pp", "a");
//fprintf(aaaaaa, "lpd_rcvjobs.c\n");
//fclose(aaaaaa);
#endif
#ifdef JYDEBUG//JYWeng
aaaaaa=fopen("/tmp/qqqqq", "a");
fprintf(aaaaaa, "Receive_job: check point 1\n");
fclose(aaaaaa);
#endif
#endif
Init_line_list(&l);
Init_line_list(&files);
Init_line_list(&info);
Init_job(&job);
Name = "RECV";
if( input && *input ) ++input;
Clean_meta(input);
Split(&info,input,Whitespace,0,0,0,0,0,0);
//printf("Receive_job!\n");//JY1107
/*JY1113: test QueueName*/
if(get_queue_name(input))
{
//printf("QueueName is not LPRServer\n");
send_ack_packet(sock, ACK_FAIL);//JY1120
return(0);
}
//else printf("QueueName is LPRServer\n");
/**/
#ifdef ORIGINAL_DEBUG//JY@1020
DEBUGFC(DRECV1)Dump_line_list("Receive_job: input", &info );
#endif
if( info.count != 1 ){
SNPRINTF( error, errlen) _("bad command line") );
goto error;
}