flash_v2: packages/redboot/current/src/net/tftp

annotate packages/redboot/current/src/net/tftp_client.c @ 1223:dbcfe4e0dbd2

New platform - TAMS MOAB - and generic changes to support it

author	gthomas
date	Fri, 19 Sep 2003 17:11:18 +0000
parents	c220ab07f5ed
children	43a89c18d005

rev	line source
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	1 //==========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	2 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	3 // net/tftp_client.c
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	4 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	5 // Stand-alone TFTP support for RedBoot
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	6 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	7 //==========================================================================
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	8 //####ECOSGPLCOPYRIGHTBEGIN####
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	9 // -------------------------------------------
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	10 // This file is part of eCos, the Embedded Configurable Operating System.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 1064 diff changeset	12 // Copyright (C) 2002, 2003 Gary Thomas
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	13 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	14 // eCos is free software; you can redistribute it and/or modify it under
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	15 // the terms of the GNU General Public License as published by the Free
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	16 // Software Foundation; either version 2 or (at your option) any later version.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	17 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	21 // for more details.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	22 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	23 // You should have received a copy of the GNU General Public License along
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	24 // with eCos; if not, write to the Free Software Foundation, Inc.,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	26 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	27 // As a special exception, if other files instantiate templates or use macros
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	28 // or inline functions from this file, or you compile this file and link it
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	29 // with other works to produce a work based on this file, this file does not
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	30 // by itself cause the resulting work to be covered by the GNU General Public
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	31 // License. However the source code for this file must still be made available
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	32 // in accordance with section (3) of the GNU General Public License.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	33 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	34 // This exception does not invalidate any other reasons why a work based on
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	35 // this file might be covered by the GNU General Public License.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	36 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
210 d2c90368aeef Merge from eCos master repository on 2002-05-23-21:39:14-BST jlarmour parents: 208 diff changeset	38 // at http://sources.redhat.com/ecos/ecos-license/
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	39 // -------------------------------------------
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	40 //####ECOSGPLCOPYRIGHTEND####
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	41 //==========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	42 //#####DESCRIPTIONBEGIN####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	43 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	44 // Author(s): gthomas
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	45 // Contributors: gthomas
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	46 // Date: 2000-07-14
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	47 // Purpose:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	48 // Description:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	49 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	50 // This code is part of RedBoot (tm).
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	51 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	52 //####DESCRIPTIONEND####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	53 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	54 //==========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	55
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	56 // TFTP client support
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	57
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 143 diff changeset	58 #include <redboot.h> // have_net
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	59 #include <net/net.h>
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	60 #include <net/tftp.h>
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	61 #include <net/tftp_support.h>
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	62
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 159 diff changeset	63 // So we remember which ports have been used
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 159 diff changeset	64 static int get_port = 7700;
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 159 diff changeset	65
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	66 static struct {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	67 bool open;
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	68 int total_timeouts, packets_received;
1064 c220ab07f5ed * src/net/tftp_client.c: Define tftp_stream.last_good_block to jlarmour parents: 952 diff changeset	69 unsigned long last_good_block;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	70 int avail, actual_len;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	71 struct sockaddr_in local_addr, from_addr;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	72 char data[SEGSIZE+sizeof(struct tftphdr)];
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	73 char *bufp;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	74 } tftp_stream;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	75
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	76 int
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	77 tftp_stream_open(connection_info_t *info,
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	78 int *err)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	79 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	80 struct tftphdr hdr = (struct tftphdr )tftp_stream.data;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	81 char cp, fp;
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	82 char test_buf;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	83
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 143 diff changeset	84 if (!have_net \|\| tftp_stream.open) {
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	85 *err = TFTP_INVALID; // Already open
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	86 return -1;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	87 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	88
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	89 // Create initial request
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	90 hdr->th_opcode = htons(RRQ); // Read file
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	91 cp = (char *)&hdr->th_stuff;
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	92 fp = info->filename;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	93 while (fp) cp++ = *fp++;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	94 *cp++ = '\0';
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	95 // Since this is used for downloading data, OCTET (binary) is the
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	96 // only mode that makes sense.
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	97 fp = "OCTET";
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	98 while (fp) cp++ = *fp++;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	99 *cp++ = '\0';
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	100
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	101 memset((char *)&tftp_stream.local_addr, 0, sizeof(tftp_stream.local_addr));
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	102 tftp_stream.local_addr.sin_family = AF_INET;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	103 tftp_stream.local_addr.sin_addr.s_addr = htonl(INADDR_ANY);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	104 tftp_stream.local_addr.sin_port = htons(get_port++);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	105
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	106 if (info->server->sin_port == 0) {
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	107 info->server->sin_port = htons(TFTP_PORT);
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	108 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	109
162 2395031e7a66 Merge from eCos master repository on 2001-06-15-06:43:03-BST jlarmour parents: 161 diff changeset	110 // Send request - note: RFC 1350 (TFTP rev 2) indicates that this should be
2395031e7a66 Merge from eCos master repository on 2001-06-15-06:43:03-BST jlarmour parents: 161 diff changeset	111 // only as long as required to hold the request, with the nul terminator.
2395031e7a66 Merge from eCos master repository on 2001-06-15-06:43:03-BST jlarmour parents: 161 diff changeset	112 // Some servers silently go to lunch if the request is not the correct size.
2395031e7a66 Merge from eCos master repository on 2001-06-15-06:43:03-BST jlarmour parents: 161 diff changeset	113 if (__udp_sendto(tftp_stream.data, cp-(char *)hdr,
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	114 info->server, &tftp_stream.local_addr) < 0) {
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	115 // Problem sending request
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	116 *err = TFTP_NETERR;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	117 return -1;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	118 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	119
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	120 tftp_stream.open = true;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	121 tftp_stream.avail = 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	122 tftp_stream.actual_len = -1;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	123 tftp_stream.last_good_block = 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	124 tftp_stream.total_timeouts = 0;
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 174 diff changeset	125 tftp_stream.from_addr.sin_port = 0;
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	126 tftp_stream.packets_received = 0;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	127
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	128 // Try and read the first byte [block] since no errors are
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	129 // reported until then.
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	130 if (tftp_stream_read(&test_buf, 1, err) == 1) {
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	131 // Back up [rewind] over this datum
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	132 tftp_stream.bufp--;
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	133 tftp_stream.avail++;
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	134 return 0; // Open and first read successful
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	135 } else {
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	136 tftp_stream.open = false;
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	137 return -1; // Couldn't read
6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 115 diff changeset	138 }
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	139 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	140
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	141 static int
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	142 tftp_ack(int *err)
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	143 {
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	144 struct tftphdr hdr = (struct tftphdr )tftp_stream.data;
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	145 // ACK last packet so server can shut down
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	146 if (tftp_stream.packets_received > 0) {
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	147 hdr->th_opcode = htons(ACK);
1064 c220ab07f5ed * src/net/tftp_client.c: Define tftp_stream.last_good_block to jlarmour parents: 952 diff changeset	148 hdr->th_block = htons((cyg_uint16)tftp_stream.last_good_block & 0xFFFF);
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	149 if (__udp_sendto(tftp_stream.data, 4 /* FIXME */,
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	150 &tftp_stream.from_addr, &tftp_stream.local_addr) < 0) {
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	151 // Problem sending ACK
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	152 *err = TFTP_NETERR;
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	153 return -1;
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	154 }
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	155 }
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	156 return 0;
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	157 }
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	158
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	159 void
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	160 tftp_stream_close(int *err)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	161 {
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	162 tftp_ack(err);
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	163 tftp_stream.open = false;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	164 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	165
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	166 int
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	167 tftp_stream_read(char *buf,
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	168 int len,
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	169 int *err)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	170 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	171 int total_bytes = 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	172 int size, recv_len, data_len;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	173 struct timeval timeout;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	174 struct tftphdr hdr = (struct tftphdr )tftp_stream.data;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	175
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	176 while (total_bytes < len) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	177 // Move any bytes which we've already read/buffered
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	178 if (tftp_stream.avail > 0) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	179 size = tftp_stream.avail;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	180 if (size > (len - total_bytes)) size = len - total_bytes;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	181 memcpy(buf, tftp_stream.bufp, size);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	182 buf += size;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	183 tftp_stream.bufp += size;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	184 tftp_stream.avail -= size;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	185 total_bytes += size;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	186 } else {
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	187 if (tftp_ack(err) < 0) {
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	188 return -1;
174 38892b97b685 Merge from eCos master repository on 2001-07-28-00:17:32-BST jlarmour parents: 162 diff changeset	189 }
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	190 if ((tftp_stream.actual_len >= 0) && (tftp_stream.actual_len < SEGSIZE)) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	191 // Out of data
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	192 break;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	193 }
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 1064 diff changeset	194 timeout.tv_sec = (tftp_stream.last_good_block == 0) ? 10*TFTP_TIMEOUT_PERIOD : TFTP_TIMEOUT_PERIOD;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	195 timeout.tv_usec = 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	196 recv_len = sizeof(tftp_stream.data);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	197 if ((data_len = __udp_recvfrom(&tftp_stream.data[0], recv_len, &tftp_stream.from_addr,
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	198 &tftp_stream.local_addr, &timeout)) < 0) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	199 // No data, try again
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 1064 diff changeset	200 diag_printf("TFTP timed out %d/%d\n", tftp_stream.total_timeouts+1, TFTP_TIMEOUT_MAX);
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	201 if ((++tftp_stream.total_timeouts > TFTP_TIMEOUT_MAX) \|\|
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	202 (tftp_stream.last_good_block == 0)) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	203 // Timeout - no data received
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	204 *err = TFTP_TIMEOUT;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	205 return -1;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	206 }
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	207 // Send out the ACK for the last block - maybe server will retry
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	208 if (tftp_ack(err) < 0) {
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	209 return -1;
ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	210 }
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	211 } else {
952 ff91ad81d086 ACK last packet on close. gthomas parents: 270 diff changeset	212 tftp_stream.packets_received++;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	213 if (ntohs(hdr->th_opcode) == DATA) {
1064 c220ab07f5ed * src/net/tftp_client.c: Define tftp_stream.last_good_block to jlarmour parents: 952 diff changeset	214 if (ntohs(hdr->th_block) == (cyg_uint16)((tftp_stream.last_good_block+1) & 0xFFFF)) {
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	215 // Consume this data
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	216 data_len -= 4; /* Sizeof TFTP header */
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	217 tftp_stream.avail = tftp_stream.actual_len = data_len;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	218 tftp_stream.bufp = hdr->th_data;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	219 tftp_stream.last_good_block++;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	220 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	221 } else {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	222 if (ntohs(hdr->th_opcode) == ERROR) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	223 *err = ntohs(hdr->th_code);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	224 return -1;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	225 } else {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	226 // What kind of packet is this?
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	227 *err = TFTP_PROTOCOL;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	228 return -1;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	229 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	230 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	231 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	232 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	233 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	234 return total_bytes;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	235 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	236
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	237 char *
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	238 tftp_error(int err)
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	239 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	240 char *errmsg = "Unknown error";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	241
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	242 switch (err) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	243 case TFTP_ENOTFOUND:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	244 return "file not found";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	245 case TFTP_EACCESS:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	246 return "access violation";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	247 case TFTP_ENOSPACE:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	248 return "disk full or allocation exceeded";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	249 case TFTP_EBADOP:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	250 return "illegal TFTP operation";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	251 case TFTP_EBADID:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	252 return "unknown transfer ID";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	253 case TFTP_EEXISTS:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	254 return "file already exists";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	255 case TFTP_ENOUSER:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	256 return "no such user";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	257 case TFTP_TIMEOUT:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	258 return "operation timed out";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	259 case TFTP_NETERR:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	260 return "some sort of network error";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	261 case TFTP_INVALID:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	262 return "invalid parameter";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	263 case TFTP_PROTOCOL:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	264 return "protocol violation";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	265 case TFTP_TOOLARGE:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	266 return "file is larger than buffer";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	267 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	268 return errmsg;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	269 }
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	270
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	271 //
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	272 // RedBoot interface
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	273 //
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	274 GETC_IO_FUNCS(tftp_io, tftp_stream_open, tftp_stream_close,
e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	275 0, tftp_stream_read, tftp_error);
245 a6660704f7a6 Fix problem with x/y-modem load. gthomas parents: 228 diff changeset	276 RedBoot_load(tftp, tftp_io, true, true, 0);
228 e1b642d73533 Improve load command - make I/O methods table driven. gthomas parents: 210 diff changeset	277

Mercurial > flash_v2

annotate packages/redboot/current/src/net/tftp_client.c @ 1223:dbcfe4e0dbd2