FreeCalypso > hg > freecalypso-sw

annotate rvinterf/etmsync/symlink.c @ 923:10b4bed10192

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gsm-fw/L1: fix for the DSP patch corruption bug The L1 code we got from the LoCosto fw contains a feature for DSP CPU load measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the code dealing with that feature is conditionalized as #if (DSP >= 38), but one spot was missed, and the MCU code was writing into an API word dealing with this feature. In TCS211 this DSP API word happens to be used by the DSP code patch, hence that write was corrupting the patched DSP code.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 19 Oct 2015 17:13:56 +0000
parents e0ca3ca46a06
children
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1 /*
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2 * Commands for experimenting with FFS symlinks
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include "etm.h"
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11 #include "ffs.h"
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12 #include "tmffs2.h"
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13 #include "limits.h"
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14 #include "ffslimits.h"
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15 #include "localtypes.h"
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16 #include "localstruct.h"
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17 #include "exitcodes.h"
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18
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19 extern u_char rvi_msg[];
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20 extern int rvi_msg_len;
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21
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22 do_symlink(target, realobj)
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23 char *target, *realobj;
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24 {
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25 u_char cmdpkt[MAX_PKT_TO_TARGET], *dp;
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26 int rc, targlen, reallen;
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27
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28 reallen = strlen(realobj);
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29 if (reallen >= TMFFS_STRING_SIZE) {
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30 printf("error: pathname arg exceeds string length limit\n");
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31 return(ERROR_USAGE);
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32 }
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33 targlen = strlen(target);
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34 if (3 + (reallen+2) + (targlen+2) + 1 > MAX_PKT_TO_TARGET) {
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35 printf("error: symlink request fails to fit into packet\n");
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36 return(ERROR_USAGE);
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37 }
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38 dp = cmdpkt + 1;
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39 *dp++ = ETM_FFS2;
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40 *dp++ = TMFFS_SYMLINK;
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41 *dp++ = reallen + 1;
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42 strcpy(dp, realobj);
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43 dp += reallen + 1;
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44 *dp++ = targlen + 1;
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45 strcpy(dp, target);
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46 dp += targlen + 1;
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47 rc = etm_pkt_exch(cmdpkt, dp - cmdpkt - 1);
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48 if (rc)
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49 return(rc);
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50 if (rvi_msg_len != 5) {
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51 printf("error: TMFFS_SYMLINK response has wrong length\n");
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52 return(ERROR_TARGET);
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53 }
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54 if (rvi_msg[3]) {
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55 report_ffs_err("symlink", rvi_msg[3]);
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56 return(ERROR_TARGET);
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57 }
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58 return(0);
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59 }
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60
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61 cmd_symlink(argc, argv)
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62 char **argv;
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63 {
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64 return do_symlink(argv[1], argv[2]);
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65 }
303
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66
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67 do_readlink(pathname, databuf, rdret)
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68 char *pathname;
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69 u_char *databuf;
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70 int *rdret;
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71 {
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72 u_char cmdpkt[MAX_PKT_TO_TARGET], *dp;
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73 int rc, slen, sz;
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74
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75 slen = strlen(pathname);
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76 if (slen >= TMFFS_STRING_SIZE) {
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77 printf("error: pathname arg exceeds string length limit\n");
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78 return(ERROR_USAGE);
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79 }
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80 dp = cmdpkt + 1;
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81 *dp++ = ETM_FFS2;
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82 *dp++ = TMFFS_READLINK;
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83 *dp++ = slen + 1;
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84 strcpy(dp, pathname);
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85 dp += slen + 1;
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86 *dp++ = 0; /* dummy 2nd buffer */
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87 rc = etm_pkt_exch(cmdpkt, dp - cmdpkt - 1);
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88 if (rc)
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89 return(rc);
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90 if (rvi_msg[3]) {
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91 report_ffs_err("readlink", rvi_msg[3]);
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92 return(ERROR_TARGET);
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93 }
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94 if (rvi_msg_len < 6) {
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95 *rdret = 0;
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96 return(0);
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97 }
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98 sz = rvi_msg[4];
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99 if (rvi_msg_len != sz + 6) {
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100 printf("error: readlink response has wrong length\n");
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101 return(ERROR_TARGET);
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102 }
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103 bcopy(rvi_msg + 5, databuf, sz);
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104 *rdret = sz;
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105 return(0);
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106 }
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107
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108 cmd_readlink(argc, argv)
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109 char **argv;
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110 {
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111 u_char databuf[256];
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112 int rc, sz, off, l;
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113
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114 rc = do_readlink(argv[1], databuf, &sz);
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115 if (rc)
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116 return(rc);
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117 printf("%d bytes read\n", sz);
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118 for (off = 0; off < sz; off += 16) {
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119 l = sz - off;
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120 if (l > 16)
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121 l = 16;
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122 hexdump_line(off, databuf + off, l);
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123 }
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124 return(0);
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125 }
304
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126
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127 do_readlink_sancheck(pathname, databuf)
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128 char *pathname;
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129 u_char *databuf;
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130 {
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131 int rc, sz;
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132
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
133 rc = do_readlink(pathname, databuf, &sz);
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
134 if (rc)
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
135 return(rc);
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
136 if (sz < 2 || databuf[sz-1]) {
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
137 printf("error: readlink on %s returned garbage\n", pathname);
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
138 return(ERROR_TARGET);
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
139 }
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
140 return(0);
e0ca3ca46a06 fc-fsio: ll reads and shows symlinks
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 303
diff changeset
141 }