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[/] [or1k/] [trunk/] [orpmon/] [services/] [tftp.c] - Blame information for rev 833

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/*
 *      Copyright 1994, 1995, 2000 Neil Russell.
 *      (See License)
 *      Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de
 */
 
#include "common.h"
#include "support.h"
#include "net.h"
#include "tftp.h"
#include "bootp.h"
 
#undef  ET_DEBUG
 
#define WELL_KNOWN_PORT 69              /* Well known TFTP port #               */
#define TIMEOUT         2               /* Seconds to timeout for a lost pkt    */
#define TIMEOUT_COUNT   10              /* # of timeouts before giving up       */
                                        /* (for checking the image size)        */
#define HASHES_PER_LINE 65              /* Number of "loading" hashes per line  */
 
/*
 *      TFTP operations.
 */
#define TFTP_RRQ        1
#define TFTP_WRQ        2
#define TFTP_DATA       3
#define TFTP_ACK        4
#define TFTP_ERROR      5
 
 
static int      TftpServerPort;         /* The UDP port at their end            */
static int      TftpOurPort;            /* The UDP port at our end              */
static int      TftpTimeoutCount;
static unsigned TftpBlock;
static unsigned TftpLastBlock;
static int      TftpState;
#define STATE_RRQ       1
#define STATE_DATA      2
#define STATE_TOO_LARGE 3
#define STATE_BAD_MAGIC 4
 
char *tftp_filename;
 
#ifdef CFG_DIRECT_FLASH_TFTP
extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
#endif
 
static __inline__ void
store_block (unsigned block, unsigned char * src, unsigned len)
{
        unsigned long offset = block * 512, newsize = offset + len;
#ifdef CFG_DIRECT_FLASH_TFTP
        int i, rc = 0;
 
        for (i=0; i<CFG_MAX_FLASH_BANKS; i++) {
                /* start address in flash? */
                if (global.src_addr + offset >= flash_info[i].start[0]) {
                        rc = 1;
                        break;
                }
        }
 
        if (rc) { /* Flash is destination for this packet */
                rc = flash_write ((unsigned char *)src, (unsigned long)(global.src_addr+offset), len);
                switch (rc) {
                case 0:  /* OK */
                        break;
                case 1: printf ("Timeout writing to Flash\n");
                        break;
                case 2: printf ("Flash not Erased\n");
                        break;
                case 4: printf ("Can't write to protected Flash sectors\n");
                        break;
                case 8: printf ("Outside available Flash\n");
                        break;
                case 16:printf ("Size must be aligned (multiple of 8?)\n");
                        break;
                default:
                        printf ("%s[%d] FIXME: rc=%d\n",__FILE__,__LINE__,rc);
                        break;
                }
                if (rc) {
                        NetState = NETLOOP_FAIL;
                        return;
                }
        }
        else
#endif /* CFG_DIRECT_FLASH_TFTP */
        (void)memcpy((void *)(global.src_addr + offset), src, len);
 
        if (NetBootFileXferSize < newsize)
                NetBootFileXferSize = newsize;
}
 
static void TftpSend (void);
static void TftpTimeout (void);
 
/**********************************************************************/
 
static void
TftpSend (void)
{
        volatile unsigned char *        pkt;
        volatile unsigned char *        xp;
        int                     len = 0;
 
        /*
         *      We will always be sending some sort of packet, so
         *      cobble together the packet headers now.
         */
        pkt = NetTxPacket + ETHER_HDR_SIZE + IP_HDR_SIZE;
 
        switch (TftpState) {
 
        case STATE_RRQ:
                xp = pkt;
                *((unsigned short *)pkt)++ = SWAP16c(TFTP_RRQ);
                strcpy ((char *)pkt, tftp_filename);
                pkt += strlen(tftp_filename) + 1;
                strcpy ((char *)pkt, "octet");
                pkt += 5 /*strlen("octet")*/ + 1;
                len = pkt - xp;
                break;
 
        case STATE_DATA:
                xp = pkt;
                *((unsigned short *)pkt)++ = SWAP16c(TFTP_ACK);
                *((unsigned short *)pkt)++ = SWAP16(TftpBlock);
                len = pkt - xp;
                break;
 
        case STATE_TOO_LARGE:
                xp = pkt;
                *((unsigned short *)pkt)++ = SWAP16c(TFTP_ERROR);
                *((unsigned short *)pkt)++ = SWAP16(3);
                strcpy ((char *)pkt, "File too large");
                pkt += 14 /*strlen("File too large")*/ + 1;
                len = pkt - xp;
                break;
 
        case STATE_BAD_MAGIC:
                xp = pkt;
                *((unsigned short *)pkt)++ = SWAP16c(TFTP_ERROR);
                *((unsigned short *)pkt)++ = SWAP16(2);
                strcpy ((char *)pkt, "File has bad magic");
                pkt += 18 /*strlen("File has bad magic")*/ + 1;
                len = pkt - xp;
                break;
        }
 
        NetSetEther (NetTxPacket, NetServerEther, PROT_IP);
        NetSetIP (NetTxPacket + ETHER_HDR_SIZE, NetServerIP,
                                        TftpServerPort, TftpOurPort, len);
        NetSendPacket (NetTxPacket, ETHER_HDR_SIZE + IP_HDR_SIZE + len);
}
 
 
static void
TftpHandler (unsigned char * pkt, unsigned dest, unsigned src, unsigned len)
{
        if (dest != TftpOurPort) {
                return;
        }
        if (TftpState != STATE_RRQ && src != TftpServerPort) {
                return;
        }
 
        if (len < 2) {
                return;
        }
        len -= 2;
        switch (SWAP16(*((unsigned short *)pkt)++)) {
 
        case TFTP_RRQ:
        case TFTP_WRQ:
        case TFTP_ACK:
                break;
        default:
                break;
 
        case TFTP_DATA:
                if (len < 2)
                        return;
                len -= 2;
                TftpBlock = SWAP16(*(unsigned short *)pkt);
                if (((TftpBlock - 1) % 10) == 0) {
                        putc ('#');
                } else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) {
                        printf ("\n\t ");
                }
 
                if (TftpState == STATE_RRQ) {
                        TftpState = STATE_DATA;
                        TftpServerPort = src;
                        TftpLastBlock = 0;
 
                        if (TftpBlock != 1) {   /* Assertion */
                                printf ("\nTFTP error: "
                                        "First block is not block 1 (%d)\n"
                                        "Starting again\n\n",
                                        TftpBlock);
                                NetStartAgain ();
                                break;
                        }
                }
 
                if (TftpBlock == TftpLastBlock) {
                        /*
                         *      Same block again; ignore it.
                         */
                        break;
                }
 
                TftpLastBlock = TftpBlock;
                NetSetTimeout (TIMEOUT * TICKS_PER_SEC, TftpTimeout);
 
                store_block (TftpBlock - 1, pkt + 2, len);
 
                /*
                 *      Acknoledge the block just received, which will prompt
                 *      the server for the next one.
                 */
                TftpSend ();
 
                if (len < 512) {
                        /*
                         *      We received the whole thing.  Try to
                         *      run it.
                         */
                        printf ("\ndone\n");
                        NetState = NETLOOP_SUCCESS;
                }
                break;
 
        case TFTP_ERROR:
                printf ("\nTFTP error: '%s' (%d)\n",
                                        pkt + 2, SWAP16(*(unsigned short *)pkt));
                printf ("Starting again\n\n");
                NetStartAgain ();
                break;
        }
}
 
 
static void
TftpTimeout (void)
{
        if (++TftpTimeoutCount >= TIMEOUT_COUNT) {
                printf ("\nRetry count exceeded; starting again\n");
                NetStartAgain ();
        } else {
                printf ("T ");
                NetSetTimeout (TIMEOUT * TICKS_PER_SEC, TftpTimeout);
                TftpSend ();
        }
}
 
 
void
TftpStart (void)
{
#ifdef ET_DEBUG
        printf ("\nServer ethernet address %02x:%02x:%02x:%02x:%02x:%02x\n",
                NetServerEther[0],
                NetServerEther[1],
                NetServerEther[2],
                NetServerEther[3],
                NetServerEther[4],
                NetServerEther[5]
        );
#endif /* DEBUG */
 
        printf ("TFTP from server ");   print_IPaddr (NetServerIP);
        printf ("; our IP address is ");        print_IPaddr (NetOurIP);
 
        // Check if we need to send across this subnet
        if (NetOurGatewayIP && NetOurSubnetMask) {
            IPaddr_t OurNet     = NetOurIP    & NetOurSubnetMask;
            IPaddr_t ServerNet  = NetServerIP & NetOurSubnetMask;
 
            if (OurNet != ServerNet) {
                printf ("; sending through gateway ");
                print_IPaddr (NetOurGatewayIP) ;
            }
        }
        putc ('\n');
 
        printf ("Filename '%s'.", tftp_filename);
 
        if (NetBootFileSize) {
            printf (" Size is %d%s kB => %x Bytes",
                NetBootFileSize/2,
                (NetBootFileSize%2) ? ".5" : "",
                NetBootFileSize<<9);
        }
 
        putc ('\n');
 
        printf ("Load address: 0x%lx\n", global.src_addr);
 
        printf ("Loading: *\b");
 
        NetSetTimeout (TIMEOUT * TICKS_PER_SEC, TftpTimeout);
        NetSetHandler (TftpHandler);
 
        TftpServerPort = WELL_KNOWN_PORT;
        TftpTimeoutCount = 0;
        TftpState = STATE_RRQ;
        TftpOurPort = 1024 + (get_timer(0) % 3072);
 
        TftpSend ();
}
 

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[/] [or1k/] [trunk/] [orpmon/] [services/] [tftp.c] - Blame information for rev 833

Line No.	Rev	Author	Line
1	809	simons	`/*`
2			`* Copyright 1994, 1995, 2000 Neil Russell.`
3			`* (See License)`
4			`* Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de`
5			`*/`
6
7			`#include "common.h"`
8			`#include "support.h"`
9			`#include "net.h"`
10			`#include "tftp.h"`
11			`#include "bootp.h"`
12
13			`#undef ET_DEBUG`
14
15			`#define WELL_KNOWN_PORT 69 /* Well known TFTP port # */`
16			`#define TIMEOUT 2 /* Seconds to timeout for a lost pkt */`
17			`#define TIMEOUT_COUNT 10 /* # of timeouts before giving up */`
18			`/* (for checking the image size) */`
19			`#define HASHES_PER_LINE 65 /* Number of "loading" hashes per line */`
20
21			`/*`
22			`* TFTP operations.`
23			`*/`
24			`#define TFTP_RRQ 1`
25			`#define TFTP_WRQ 2`
26			`#define TFTP_DATA 3`
27			`#define TFTP_ACK 4`
28			`#define TFTP_ERROR 5`
29
30
31			`static int TftpServerPort; /* The UDP port at their end */`
32			`static int TftpOurPort; /* The UDP port at our end */`
33			`static int TftpTimeoutCount;`
34			`static unsigned TftpBlock;`
35			`static unsigned TftpLastBlock;`
36			`static int TftpState;`
37			`#define STATE_RRQ 1`
38			`#define STATE_DATA 2`
39			`#define STATE_TOO_LARGE 3`
40			`#define STATE_BAD_MAGIC 4`
41
42	817	simons	`char *tftp_filename;`
43	809	simons
44			`#ifdef CFG_DIRECT_FLASH_TFTP`
45			`extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];`
46			`#endif`
47
48			`static __inline__ void`
49			`store_block (unsigned block, unsigned char * src, unsigned len)`
50			`{`
51			`unsigned long offset = block * 512, newsize = offset + len;`
52			`#ifdef CFG_DIRECT_FLASH_TFTP`
53			`int i, rc = 0;`
54
55			`for (i=0; i<CFG_MAX_FLASH_BANKS; i++) {`
56			`/* start address in flash? */`
57	817	simons	`if (global.src_addr + offset >= flash_info[i].start[0]) {`
58	809	simons	`rc = 1;`
59			`break;`
60			`}`
61			`}`
62
63			`if (rc) { /* Flash is destination for this packet */`
64	817	simons	`rc = flash_write ((unsigned char *)src, (unsigned long)(global.src_addr+offset), len);`
65	809	simons	`switch (rc) {`
66			`case 0: /* OK */`
67			`break;`
68			`case 1: printf ("Timeout writing to Flash\n");`
69			`break;`
70			`case 2: printf ("Flash not Erased\n");`
71			`break;`
72			`case 4: printf ("Can't write to protected Flash sectors\n");`
73			`break;`
74			`case 8: printf ("Outside available Flash\n");`
75			`break;`
76			`case 16:printf ("Size must be aligned (multiple of 8?)\n");`
77			`break;`
78			`default:`
79			`printf ("%s[%d] FIXME: rc=%d\n",__FILE__,__LINE__,rc);`
80			`break;`
81			`}`
82			`if (rc) {`
83			`NetState = NETLOOP_FAIL;`
84			`return;`
85			`}`
86			`}`
87			`else`
88			`#endif /* CFG_DIRECT_FLASH_TFTP */`
89	817	simons	`(void)memcpy((void *)(global.src_addr + offset), src, len);`
90	809	simons
91			`if (NetBootFileXferSize < newsize)`
92			`NetBootFileXferSize = newsize;`
93			`}`
94
95			`static void TftpSend (void);`
96			`static void TftpTimeout (void);`
97
98			`/**********************************************************************/`
99
100			`static void`
101			`TftpSend (void)`
102			`{`
103			`volatile unsigned char * pkt;`
104			`volatile unsigned char * xp;`
105			`int len = 0;`
106
107			`/*`
108			`* We will always be sending some sort of packet, so`
109			`* cobble together the packet headers now.`
110			`*/`
111			`pkt = NetTxPacket + ETHER_HDR_SIZE + IP_HDR_SIZE;`
112
113			`switch (TftpState) {`
114
115			`case STATE_RRQ:`
116			`xp = pkt;`
117			`((unsigned short )pkt)++ = SWAP16c(TFTP_RRQ);`
118			`strcpy ((char *)pkt, tftp_filename);`
119			`pkt += strlen(tftp_filename) + 1;`
120			`strcpy ((char *)pkt, "octet");`
121			`pkt += 5 /strlen("octet")/ + 1;`
122			`len = pkt - xp;`
123			`break;`
124
125			`case STATE_DATA:`
126			`xp = pkt;`
127			`((unsigned short )pkt)++ = SWAP16c(TFTP_ACK);`
128			`((unsigned short )pkt)++ = SWAP16(TftpBlock);`
129			`len = pkt - xp;`
130			`break;`
131
132			`case STATE_TOO_LARGE:`
133			`xp = pkt;`
134			`((unsigned short )pkt)++ = SWAP16c(TFTP_ERROR);`
135			`((unsigned short )pkt)++ = SWAP16(3);`
136			`strcpy ((char *)pkt, "File too large");`
137			`pkt += 14 /strlen("File too large")/ + 1;`
138			`len = pkt - xp;`
139			`break;`
140
141			`case STATE_BAD_MAGIC:`
142			`xp = pkt;`
143			`((unsigned short )pkt)++ = SWAP16c(TFTP_ERROR);`
144			`((unsigned short )pkt)++ = SWAP16(2);`
145			`strcpy ((char *)pkt, "File has bad magic");`
146			`pkt += 18 /strlen("File has bad magic")/ + 1;`
147			`len = pkt - xp;`
148			`break;`
149			`}`
150
151			`NetSetEther (NetTxPacket, NetServerEther, PROT_IP);`
152			`NetSetIP (NetTxPacket + ETHER_HDR_SIZE, NetServerIP,`
153			`TftpServerPort, TftpOurPort, len);`
154			`NetSendPacket (NetTxPacket, ETHER_HDR_SIZE + IP_HDR_SIZE + len);`
155			`}`
156
157
158			`static void`
159			`TftpHandler (unsigned char * pkt, unsigned dest, unsigned src, unsigned len)`
160			`{`
161			`if (dest != TftpOurPort) {`
162			`return;`
163			`}`
164			`if (TftpState != STATE_RRQ && src != TftpServerPort) {`
165			`return;`
166			`}`
167
168			`if (len < 2) {`
169			`return;`
170			`}`
171			`len -= 2;`
172			`switch (SWAP16(((unsigned short )pkt)++)) {`
173
174			`case TFTP_RRQ:`
175			`case TFTP_WRQ:`
176			`case TFTP_ACK:`
177			`break;`
178			`default:`
179			`break;`
180
181			`case TFTP_DATA:`
182			`if (len < 2)`
183			`return;`
184			`len -= 2;`
185			`TftpBlock = SWAP16((unsigned short )pkt);`
186			`if (((TftpBlock - 1) % 10) == 0) {`
187			`putc ('#');`
188			`} else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) {`
189			`printf ("\n\t ");`
190			`}`
191
192			`if (TftpState == STATE_RRQ) {`
193			`TftpState = STATE_DATA;`
194			`TftpServerPort = src;`
195			`TftpLastBlock = 0;`
196
197			`if (TftpBlock != 1) { /* Assertion */`
198			`printf ("\nTFTP error: "`
199			`"First block is not block 1 (%d)\n"`
200			`"Starting again\n\n",`
201			`TftpBlock);`
202			`NetStartAgain ();`
203			`break;`
204			`}`
205			`}`
206
207			`if (TftpBlock == TftpLastBlock) {`
208			`/*`
209			`* Same block again; ignore it.`
210			`*/`
211			`break;`
212			`}`
213
214			`TftpLastBlock = TftpBlock;`
215	833	simons	`NetSetTimeout (TIMEOUT * TICKS_PER_SEC, TftpTimeout);`
216	809	simons
217			`store_block (TftpBlock - 1, pkt + 2, len);`
218
219			`/*`
220			`* Acknoledge the block just received, which will prompt`
221			`* the server for the next one.`
222			`*/`
223			`TftpSend ();`
224
225			`if (len < 512) {`
226			`/*`
227			`* We received the whole thing. Try to`
228			`* run it.`
229			`*/`
230			`printf ("\ndone\n");`
231			`NetState = NETLOOP_SUCCESS;`
232			`}`
233			`break;`
234
235			`case TFTP_ERROR:`
236			`printf ("\nTFTP error: '%s' (%d)\n",`
237			`pkt + 2, SWAP16((unsigned short )pkt));`
238			`printf ("Starting again\n\n");`
239			`NetStartAgain ();`
240			`break;`
241			`}`
242			`}`
243
244
245			`static void`
246			`TftpTimeout (void)`
247			`{`
248			`if (++TftpTimeoutCount >= TIMEOUT_COUNT) {`
249			`printf ("\nRetry count exceeded; starting again\n");`
250			`NetStartAgain ();`
251			`} else {`
252			`printf ("T ");`
253	833	simons	`NetSetTimeout (TIMEOUT * TICKS_PER_SEC, TftpTimeout);`
254	809	simons	`TftpSend ();`
255			`}`
256			`}`
257
258
259			`void`
260			`TftpStart (void)`
261			`{`
262			`#ifdef ET_DEBUG`
263			`printf ("\nServer ethernet address %02x:%02x:%02x:%02x:%02x:%02x\n",`
264			`NetServerEther[0],`
265			`NetServerEther[1],`
266			`NetServerEther[2],`
267			`NetServerEther[3],`
268			`NetServerEther[4],`
269			`NetServerEther[5]`
270			`);`
271			`#endif /* DEBUG */`
272
273			`printf ("TFTP from server "); print_IPaddr (NetServerIP);`
274			`printf ("; our IP address is "); print_IPaddr (NetOurIP);`
275
276			`// Check if we need to send across this subnet`
277			`if (NetOurGatewayIP && NetOurSubnetMask) {`
278			`IPaddr_t OurNet = NetOurIP & NetOurSubnetMask;`
279			`IPaddr_t ServerNet = NetServerIP & NetOurSubnetMask;`
280
281			`if (OurNet != ServerNet) {`
282			`printf ("; sending through gateway ");`
283			`print_IPaddr (NetOurGatewayIP) ;`
284			`}`
285			`}`
286			`putc ('\n');`
287
288			`printf ("Filename '%s'.", tftp_filename);`
289
290			`if (NetBootFileSize) {`
291			`printf (" Size is %d%s kB => %x Bytes",`
292			`NetBootFileSize/2,`
293			`(NetBootFileSize%2) ? ".5" : "",`
294			`NetBootFileSize<<9);`
295			`}`
296
297			`putc ('\n');`
298
299	817	simons	`printf ("Load address: 0x%lx\n", global.src_addr);`
300	809	simons
301			`printf ("Loading: *\b");`
302
303	833	simons	`NetSetTimeout (TIMEOUT * TICKS_PER_SEC, TftpTimeout);`
304	809	simons	`NetSetHandler (TftpHandler);`
305
306			`TftpServerPort = WELL_KNOWN_PORT;`
307			`TftpTimeoutCount = 0;`
308			`TftpState = STATE_RRQ;`
309			`TftpOurPort = 1024 + (get_timer(0) % 3072);`
310
311			`TftpSend ();`
312			`}`
313