diff options
| -rw-r--r-- | src/bus.c | 96 |
1 files changed, 78 insertions, 18 deletions
@@ -35,50 +35,110 @@ extern char* ide_device_glob[]; int scanbus_sysfs(nndevice_t** device) { - char tmpstr[128]; const char* scsi_path = "/sys/class/scsi_disk"; - DIR *pdir; - struct dirent *pdent; - DIR *pbdir; - struct dirent *pbent; + char tmpstr[128]; + int i = 0; + int fd = -1; + FILE* fp = NULL; + DIR* pbase; + DIR* pblock; + struct dirent* pbaseent; + struct dirent* pblockent; - /* scan for scsi devices via sysfs */ + /* scan for scsi devices (and with libata enabled ... ide devices too) via sysfs */ if((access(scsi_path, F_OK)) != 0) { COM(self, "Sysfs not available\n"); return 1; } - pdir = opendir(scsi_path); - if(!pdir) + pbase = opendir(scsi_path); + if(!pbase) { COM(self, "fatal opendir: %s\n", strerror(errno)); exit(1); } - while((pdent = readdir(pdir))) + while((pbaseent = readdir(pbase))) { - if(!strncasecmp(pdent->d_name, ".", 1) || !strncasecmp(pdent->d_name, "..", 2)) + device[i] = (nndevice_t*)malloc(sizeof(nndevice_t)); + if(device[i] == NULL) + { + perror("device"); + exit(1); + } + + if(!strncasecmp(pbaseent->d_name, ".", 1) || !strncasecmp(pbaseent->d_name, "..", 2)) continue; - sprintf(tmpstr, "%s/%s/device/block", scsi_path, pdent->d_name); - pbdir = opendir(tmpstr); - if(!pbdir) + /* set model */ + snprintf(tmpstr, sizeof(tmpstr), "%s/%s/device/model", scsi_path, pbaseent->d_name); + fp = fopen(tmpstr, "r"); + if(fp == NULL) + { + COM(self, "Could not retrieve model information from %s: %s\n", tmpstr, strerror(errno)); + } + else + { + fgets(device[i]->model, sizeof(device[i]->model), fp); + device[i]->model[strlen(device[i]->model) - 1] = 0; + + fclose(fp); + } + + /* set vendor */ + snprintf(tmpstr, sizeof(tmpstr), "%s/%s/device/vendor", scsi_path, pbaseent->d_name); + fp = fopen(tmpstr, "r"); + if(fp == NULL) + { + COM(self, "Could not retrieve vendor information from %s: %s\n", tmpstr, strerror(errno)); + } + else + { + fgets(device[i]->vendor, sizeof(device[i]->model), fp); + /* Why does sysfs not terminate the string after the last character? Kernel 2.6 bug? + Here we are checking for the space character and terminating it manually. */ + device[i]->vendor[strind(device[i]->vendor, ' ')] = 0; + fclose(fp); + } + + snprintf(tmpstr, sizeof(tmpstr), "%s/%s/device/block", scsi_path, pbaseent->d_name); + pblock = opendir(tmpstr); + if(!pblock) { COM(self, "fatal opendir: %s\n", strerror(errno)); exit(1); } - while((pbent = readdir(pbdir))) + while((pblockent = readdir(pblock))) { - if(!strncasecmp(pbent->d_name, ".", 1) || !strncasecmp(pbent->d_name, "..", 2)) + if(!strncasecmp(pblockent->d_name, ".", 1) || !strncasecmp(pblockent->d_name, "..", 2)) continue; - printf("%s - %s\n", pdent->d_name, pbent->d_name); + /* set path */ + snprintf(device[i]->path, sizeof(device[i]->path), "/dev/%s", pblockent->d_name); } - closedir(pbdir); + closedir(pblock); + + /* set number of blocks */ + fd = open(device[i]->path, O_RDONLY | O_NONBLOCK); + if(fd >= 0) + { + if((ioctl(fd, BLKGETSIZE, &device[i]->blks)) != 0) + { + COM(self, "ioctl: could not retrieve block count for %s\n", device[i]->path); + device[i]->blks = 0; + } + close(fd); + } + + device[i]->blksz = 512; + device[i]->sz = device[i]->blks * device[i]->blksz; + + COM(self, "%s %s %s %llu\n", device[i]->vendor, device[i]->path, device[i]->model, (device[i]->blks * device[i]->blksz)); + ++i; } - closedir(pdir); + closedir(pbase); return 0; } |