SWUpdate library to be used with RPC.
Fork of SWUpdate by
SWUpdate.cpp@1:208de08b1a19, 2014-06-14 (annotated)
- Committer:
- WiredHome
- Date:
- Sat Jun 14 15:59:02 2014 +0000
- Revision:
- 1:208de08b1a19
- Parent:
- 0:e221363f7942
- Child:
- 3:c69fff55fc60
Unconditionally try to remove the old bin file when a new one has been downloaded.; Add a few more warning messages.; Provide a placeholder for an integrity check of the new download.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
WiredHome | 0:e221363f7942 | 1 | |
WiredHome | 0:e221363f7942 | 2 | // Software Update via Ethernet from forum - |
WiredHome | 0:e221363f7942 | 3 | // http://mbed.org/forum/mbed/topic/1183/ |
WiredHome | 1:208de08b1a19 | 4 | // |
WiredHome | 0:e221363f7942 | 5 | #include "mbed.h" |
WiredHome | 0:e221363f7942 | 6 | #include "SWUpdate.h" |
WiredHome | 0:e221363f7942 | 7 | #include "HTTPClient.h" |
WiredHome | 0:e221363f7942 | 8 | #include "HTTPText.h" |
WiredHome | 0:e221363f7942 | 9 | #include "HTTPFile.h" |
WiredHome | 0:e221363f7942 | 10 | #include <stdio.h> |
WiredHome | 0:e221363f7942 | 11 | |
WiredHome | 0:e221363f7942 | 12 | extern "C" void mbed_reset(); |
WiredHome | 0:e221363f7942 | 13 | |
WiredHome | 0:e221363f7942 | 14 | #define DEBUG "SWup" |
WiredHome | 0:e221363f7942 | 15 | #include <cstdio> |
WiredHome | 0:e221363f7942 | 16 | #if (defined(DEBUG) && !defined(TARGET_LPC11U24)) |
WiredHome | 0:e221363f7942 | 17 | #define DBG(x, ...) std::printf("[DBG %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 0:e221363f7942 | 18 | #define WARN(x, ...) std::printf("[WRN %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 0:e221363f7942 | 19 | #define ERR(x, ...) std::printf("[ERR %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 0:e221363f7942 | 20 | #define INFO(x, ...) std::printf("[INF %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 0:e221363f7942 | 21 | #else |
WiredHome | 0:e221363f7942 | 22 | #define DBG(x, ...) |
WiredHome | 0:e221363f7942 | 23 | #define WARN(x, ...) |
WiredHome | 0:e221363f7942 | 24 | #define ERR(x, ...) |
WiredHome | 0:e221363f7942 | 25 | #define INFO(x, ...) |
WiredHome | 0:e221363f7942 | 26 | #endif |
WiredHome | 0:e221363f7942 | 27 | |
WiredHome | 1:208de08b1a19 | 28 | static bool PassesIntegrityCheck(const char * fname) { |
WiredHome | 1:208de08b1a19 | 29 | return true; |
WiredHome | 1:208de08b1a19 | 30 | } |
WiredHome | 1:208de08b1a19 | 31 | |
WiredHome | 0:e221363f7942 | 32 | bool SoftwareUpdate(const char *url, const char * name, Reboot_T reboot) { |
WiredHome | 0:e221363f7942 | 33 | HTTPClient http; |
WiredHome | 0:e221363f7942 | 34 | //http.setTimeout( 15000 ); |
WiredHome | 0:e221363f7942 | 35 | char fqurl[150]; // fully qualified url |
WiredHome | 0:e221363f7942 | 36 | char verfn[32]; // local version file |
WiredHome | 0:e221363f7942 | 37 | char fwfn[32]; |
WiredHome | 0:e221363f7942 | 38 | bool result = false; // many things can go wrong, assume failure |
WiredHome | 0:e221363f7942 | 39 | //char *verfn = "/local/VERSION.TXT"; |
WiredHome | 0:e221363f7942 | 40 | char buf[50]; |
WiredHome | 0:e221363f7942 | 41 | |
WiredHome | 0:e221363f7942 | 42 | INFO("SoftwareUpdate(%s,%s)", url, name); |
WiredHome | 0:e221363f7942 | 43 | snprintf(verfn, 32, "/local/%s.ver", name); |
WiredHome | 0:e221363f7942 | 44 | |
WiredHome | 0:e221363f7942 | 45 | /* Read installed version string */ |
WiredHome | 0:e221363f7942 | 46 | int inst_ver = -1; |
WiredHome | 0:e221363f7942 | 47 | FILE *fv = fopen(verfn, "r"); |
WiredHome | 0:e221363f7942 | 48 | if (fv) { |
WiredHome | 0:e221363f7942 | 49 | fscanf(fv, "%d", &inst_ver); |
WiredHome | 0:e221363f7942 | 50 | fclose(fv); |
WiredHome | 0:e221363f7942 | 51 | } |
WiredHome | 0:e221363f7942 | 52 | INFO(" Installed version: %d", inst_ver); |
WiredHome | 0:e221363f7942 | 53 | |
WiredHome | 0:e221363f7942 | 54 | /* Download latest version string */ |
WiredHome | 0:e221363f7942 | 55 | HTTPText server_ver("test message"); |
WiredHome | 0:e221363f7942 | 56 | snprintf(fqurl, 150, "%s/%s.txt", url, name); |
WiredHome | 0:e221363f7942 | 57 | HTTPResult r = http.get(fqurl, buf, sizeof(buf)); |
WiredHome | 0:e221363f7942 | 58 | if (r == HTTP_OK) { |
WiredHome | 0:e221363f7942 | 59 | int latest_ver = -1; |
WiredHome | 0:e221363f7942 | 60 | INFO(" read {%s}", buf); |
WiredHome | 0:e221363f7942 | 61 | sscanf(buf, "%d", &latest_ver); |
WiredHome | 0:e221363f7942 | 62 | INFO(" web version: %d", latest_ver); |
WiredHome | 0:e221363f7942 | 63 | if (inst_ver != latest_ver) { |
WiredHome | 0:e221363f7942 | 64 | INFO(" Downloading new firmware..."); |
WiredHome | 0:e221363f7942 | 65 | sprintf(fwfn, "/local/%s%d.BIN", name, latest_ver); |
WiredHome | 0:e221363f7942 | 66 | snprintf(fqurl, 150, "%s/%s.bin", url, name); |
WiredHome | 0:e221363f7942 | 67 | |
WiredHome | 0:e221363f7942 | 68 | HTTPFile latest(fwfn); |
WiredHome | 0:e221363f7942 | 69 | r = http.get(fqurl, &latest); |
WiredHome | 0:e221363f7942 | 70 | if (r == HTTP_OK) { |
WiredHome | 1:208de08b1a19 | 71 | // Check the integrity of the freshly downloaded file, |
WiredHome | 1:208de08b1a19 | 72 | // before swapping out the old version. |
WiredHome | 1:208de08b1a19 | 73 | // ... to appear here ... |
WiredHome | 1:208de08b1a19 | 74 | if (PassesIntegrityCheck(fwfn)) { |
WiredHome | 1:208de08b1a19 | 75 | sprintf(fwfn, "/local/%s%d.BIN", name, inst_ver); |
WiredHome | 1:208de08b1a19 | 76 | INFO(" Firmware downloaded, removing old version (%s).", fwfn); |
WiredHome | 1:208de08b1a19 | 77 | if (remove(fwfn)) { |
WiredHome | 1:208de08b1a19 | 78 | ERR(" *** Failed to remove old version. ***"); |
WiredHome | 1:208de08b1a19 | 79 | } |
WiredHome | 1:208de08b1a19 | 80 | INFO("Updating stored version number."); |
WiredHome | 1:208de08b1a19 | 81 | fv = fopen(verfn, "w"); |
WiredHome | 1:208de08b1a19 | 82 | if (fv) { |
WiredHome | 1:208de08b1a19 | 83 | int fr = fputs(buf, fv); |
WiredHome | 1:208de08b1a19 | 84 | if (fr < 0) { |
WiredHome | 1:208de08b1a19 | 85 | ERR("Failed (%d) to update stored version number.", fr); |
WiredHome | 1:208de08b1a19 | 86 | fclose( fv ); |
WiredHome | 1:208de08b1a19 | 87 | } else { |
WiredHome | 1:208de08b1a19 | 88 | fclose( fv ); |
WiredHome | 1:208de08b1a19 | 89 | if (reboot == AUTO_REBOOT) { |
WiredHome | 1:208de08b1a19 | 90 | WARN("Resetting...\n"); |
WiredHome | 1:208de08b1a19 | 91 | wait_ms(200); |
WiredHome | 1:208de08b1a19 | 92 | mbed_reset(); |
WiredHome | 1:208de08b1a19 | 93 | } |
WiredHome | 1:208de08b1a19 | 94 | result = true; |
WiredHome | 1:208de08b1a19 | 95 | } |
WiredHome | 0:e221363f7942 | 96 | } else { |
WiredHome | 1:208de08b1a19 | 97 | WARN("Failed to update local version info in %s.", verfn); |
WiredHome | 0:e221363f7942 | 98 | } |
WiredHome | 1:208de08b1a19 | 99 | } else { |
WiredHome | 1:208de08b1a19 | 100 | WARN("New file {%s} did not pass integrity check.", fwfn); |
WiredHome | 0:e221363f7942 | 101 | } |
WiredHome | 0:e221363f7942 | 102 | } else { |
WiredHome | 1:208de08b1a19 | 103 | WARN("Failed to download lastest firmware."); |
WiredHome | 0:e221363f7942 | 104 | } |
WiredHome | 0:e221363f7942 | 105 | } |
WiredHome | 0:e221363f7942 | 106 | } else { |
WiredHome | 1:208de08b1a19 | 107 | WARN("Failed to download online firmware version number."); |
WiredHome | 0:e221363f7942 | 108 | } |
WiredHome | 0:e221363f7942 | 109 | return result; |
WiredHome | 0:e221363f7942 | 110 | } |