/* A utility program for copying files. Similar to 'dd' but using * the 'Extended Copy' command. * * Copyright (c) 2011-2022 Hannes Reinecke, SUSE Labs * * Largely taken from 'sg_dd', which has the * * Copyright (C) 1999 - 2010 D. Gilbert and P. Allworth * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * SPDX-License-Identifier: GPL-2.0-or-later * * This program is a specialisation of the Unix "dd" command in which * either the input or the output file is a scsi generic device, raw * device, a block device or a normal file. The block size ('bs') is * assumed to be 512 if not given. This program complains if 'ibs' or * 'obs' are given with a value that differs from 'bs' (or the default 512). * If 'if' is not given or 'if=-' then stdin is assumed. If 'of' is * not given or 'of=-' then stdout assumed. * * A non-standard argument "bpt" (blocks per transfer) is added to control * the maximum number of blocks in each transfer. The default value is 128. * For example if "bs=512" and "bpt=32" then a maximum of 32 blocks (16 KiB * in this case) is transferred to or from the sg device in a single SCSI * command. * * This version is designed for the Linux kernel 2.4, 2.6, 3, 4 and 5 series. */ #define _XOPEN_SOURCE 600 #ifndef _GNU_SOURCE #define _GNU_SOURCE 1 #endif #include #include #include #include #include #include #include #include #include #include #include #define __STDC_FORMAT_MACROS 1 #include #include #include #include #include #include #ifndef major #include #endif #include #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "sg_lib.h" #include "sg_cmds_basic.h" #include "sg_cmds_extra.h" #include "sg_io_linux.h" #include "sg_unaligned.h" #include "sg_pr2serr.h" static const char * version_str = "0.73 20220118"; #define ME "sg_xcopy: " #define STR_SZ 1024 #define INOUTF_SZ 512 #define EBUFF_SZ 1024 #define DEF_BLOCK_SIZE 512 #define DEF_BLOCKS_PER_TRANSFER 128 #define MAX_BLOCKS_PER_TRANSFER 65535 #define DEF_MODE_RESP_LEN 252 #define RW_ERR_RECOVERY_MP 1 #define CACHING_MP 8 #define CONTROL_MP 0xa #define SENSE_BUFF_LEN 64 /* Arbitrary, could be larger */ #define READ_CAP_REPLY_LEN 8 #define RCAP16_REPLY_LEN 32 #define DEF_TIMEOUT 60000 /* 60,000 millisecs == 60 seconds */ #ifndef UINT32_MAX #define UINT32_MAX ((uint32_t)-1) #endif #ifndef RAW_MAJOR #define RAW_MAJOR 255 /*unlikely value */ #endif #define SG_LIB_FLOCK_ERR 90 /* In SPC-4 the cdb opcodes have more generic names */ #define THIRD_PARTY_COPY_OUT_CMD 0x83 #define THIRD_PARTY_COPY_IN_CMD 0x84 /* Third party copy IN (opcode 0x84) and OUT (opcode 0x83) command service * actions */ #define SA_XCOPY_LID1 0x0 /* OUT, originate */ #define SA_XCOPY_LID4 0x1 /* OUT, originate */ #define SA_POP_TOK 0x10 /* OUT, originate */ #define SA_WR_USING_TOK 0x11 /* OUT, originate */ #define SA_COPY_ABORT 0x1C /* OUT, abort */ #define SA_COPY_STATUS_LID1 0x0 /* IN, retrieve */ #define SA_COPY_DATA_LID1 0x1 /* IN, retrieve */ #define SA_COPY_OP_PARAMS 0x3 /* IN, retrieve */ #define SA_COPY_FAIL_DETAILS 0x4 /* IN, retrieve */ #define SA_COPY_STATUS_LID4 0x5 /* IN, retrieve */ #define SA_COPY_DATA_LID4 0x6 /* IN, retrieve */ #define SA_ROD_TOK_INFO 0x7 /* IN, retrieve */ #define SA_ALL_ROD_TOKS 0x8 /* IN, retrieve */ #define DEF_3PC_OUT_TIMEOUT (10 * 60) /* is 10 minutes enough? */ #define DEF_GROUP_NUM 0x0 #define VPD_DEVICE_ID 0x83 #define VPD_3PARTY_COPY 0x8f #define FT_OTHER 1 /* filetype is probably normal */ #define FT_SG 2 /* filetype is sg or bsg char device */ #define FT_RAW 4 /* filetype is raw char device */ #define FT_DEV_NULL 8 /* either "/dev/null" or "." as filename */ #define FT_ST 16 /* filetype is st char device (tape) */ #define FT_BLOCK 32 /* filetype is block device */ #define FT_FIFO 64 /* filetype is a fifo (name pipe) */ #define FT_ERROR 128 /* couldn't "stat" file */ #define TD_FC_WWPN 1 #define TD_FC_PORT 2 #define TD_FC_WWPN_AND_PORT 4 #define TD_SPI 8 #define TD_VPD 16 #define TD_IPV4 32 #define TD_ALIAS 64 #define TD_RDMA 128 #define TD_FW 256 #define TD_SAS 512 #define TD_IPV6 1024 #define TD_IP_COPY_SERVICE 2048 #define TD_ROD 4096 #define XCOPY_TO_SRC "XCOPY_TO_SRC" #define XCOPY_TO_DST "XCOPY_TO_DST" #define DEF_XCOPY_SRC0_DST1 1 #define DEV_NULL_MINOR_NUM 3 #define MIN_RESERVED_SIZE 8192 #define MAX_UNIT_ATTENTIONS 10 #define MAX_ABORTED_CMDS 256 static int64_t dd_count = -1; static int64_t in_full = 0; static int in_partial = 0; static int64_t out_full = 0; static int out_partial = 0; static bool do_time = false; static bool start_tm_valid = false; static bool xcopy_flag_cat = false; static bool xcopy_flag_dc = false; static bool xcopy_flag_fco = false; /* fast copy only, spc5r20 */ static int blk_sz = 0; static int list_id_usage = -1; static int priority = 1; static int verbose = 0; static struct timeval start_tm; struct xcopy_fp_t { bool append; bool excl; bool flock; bool pad; /* Data descriptor PAD bit (residual data treatment) */ bool xcopy_given; int sect_sz; int sg_type, sg_fd; int pdt; /* Peripheral device type */ dev_t devno; uint32_t min_bytes; uint32_t max_bytes; int64_t num_sect; char fname[INOUTF_SZ]; }; static struct xcopy_fp_t ixcf; static struct xcopy_fp_t oxcf; static const char * read_cap_str = "Read capacity"; static const char * rec_copy_op_params_str = "Receive copy operating " "parameters"; static void calc_duration_throughput(int contin); static void install_handler(int sig_num, void (*sig_handler) (int sig)) { struct sigaction sigact; sigaction (sig_num, NULL, &sigact); if (sigact.sa_handler != SIG_IGN) { sigact.sa_handler = sig_handler; sigemptyset (&sigact.sa_mask); sigact.sa_flags = 0; sigaction (sig_num, &sigact, NULL); } } static void print_stats(const char * str) { if (0 != dd_count) pr2serr(" remaining block count=%" PRId64 "\n", dd_count); pr2serr("%s%" PRId64 "+%d records in\n", str, in_full - in_partial, in_partial); pr2serr("%s%" PRId64 "+%d records out\n", str, out_full - out_partial, out_partial); } static void interrupt_handler(int sig) { struct sigaction sigact; sigact.sa_handler = SIG_DFL; sigemptyset(&sigact.sa_mask); sigact.sa_flags = 0; sigaction(sig, &sigact, NULL); pr2serr("Interrupted by signal,"); if (do_time) calc_duration_throughput(0); print_stats(""); kill(getpid (), sig); } static void siginfo_handler(int sig) { if (sig) { ; } /* unused, dummy to suppress warning */ pr2serr("Progress report, continuing ...\n"); if (do_time) calc_duration_throughput(1); print_stats(" "); } static bool bsg_major_checked = false; static int bsg_major = 0; static void find_bsg_major(void) { const char * proc_devices = "/proc/devices"; FILE *fp; char a[128]; char b[128]; char * cp; int n; if (NULL == (fp = fopen(proc_devices, "r"))) { if (verbose) pr2serr("fopen %s failed: %s\n", proc_devices, strerror(errno)); return; } while ((cp = fgets(b, sizeof(b), fp))) { if ((1 == sscanf(b, "%126s", a)) && (0 == memcmp(a, "Character", 9))) break; } while (cp && (cp = fgets(b, sizeof(b), fp))) { if (2 == sscanf(b, "%d %126s", &n, a)) { if (0 == strcmp("bsg", a)) { bsg_major = n; break; } } else break; } if (verbose > 5) { if (cp) pr2serr("found bsg_major=%d\n", bsg_major); else pr2serr("found no bsg char device in %s\n", proc_devices); } fclose(fp); } /* Returns a file descriptor on success (0 or greater), -1 for an open * error, -2 for a standard INQUIRY problem. */ static int open_sg(struct xcopy_fp_t * fp, int vb) { int devmajor, devminor, offset; struct sg_simple_inquiry_resp sir; char ebuff[EBUFF_SZ]; int len, res; devmajor = major(fp->devno); devminor = minor(fp->devno); if (fp->sg_type & FT_SG) { snprintf(ebuff, EBUFF_SZ, "%.500s", fp->fname); } else if (fp->sg_type & FT_BLOCK || fp->sg_type & FT_OTHER) { int fd; snprintf(ebuff, EBUFF_SZ, "/sys/dev/block/%d:%d/partition", devmajor, devminor); if ((fd = open(ebuff, O_RDONLY)) >= 0) { ebuff[EBUFF_SZ - 1] = '\0'; len = read(fd, ebuff, EBUFF_SZ - 1); if (len < 0) { perror("read partition"); } else { offset = strtoul(ebuff, NULL, 10); devminor -= offset; } close(fd); } snprintf(ebuff, EBUFF_SZ, "/dev/block/%d:%d", devmajor, devminor); } else { snprintf(ebuff, EBUFF_SZ, "/dev/char/%d:%d", devmajor, devminor); } fp->sg_fd = sg_cmds_open_device(ebuff, false /* rw mode */, vb); if (fp->sg_fd < 0) { snprintf(ebuff, EBUFF_SZ, ME "could not open %s device %d:%d for sg", fp->sg_type & FT_BLOCK ? "block" : "char", devmajor, devminor); perror(ebuff); return -sg_convert_errno(-fp->sg_fd); } if (sg_simple_inquiry(fp->sg_fd, &sir, false, vb)) { pr2serr("INQUIRY failed on %s\n", ebuff); res = sg_cmds_close_device(fp->sg_fd); if (res < 0) pr2serr("sg_cmds_close_device() failed as well\n"); fp->sg_fd = -1; return -1; } fp->pdt = sir.peripheral_type; if (vb) pr2serr(" %s: %.8s %.16s %.4s [pdt=%d, 3pc=%d]\n", fp->fname, sir.vendor, sir.product, sir.revision, fp->pdt, !! (0x8 & sir.byte_5)); return fp->sg_fd; } static int dd_filetype(struct xcopy_fp_t * fp) { struct stat st; size_t len = strlen(fp->fname); if ((1 == len) && ('.' == fp->fname[0])) return FT_DEV_NULL; if (stat(fp->fname, &st) < 0) return FT_ERROR; if (S_ISCHR(st.st_mode)) { fp->devno = st.st_rdev; /* major() and minor() defined in sys/sysmacros.h */ if ((MEM_MAJOR == major(st.st_rdev)) && (DEV_NULL_MINOR_NUM == minor(st.st_rdev))) return FT_DEV_NULL; if (RAW_MAJOR == major(st.st_rdev)) return FT_RAW; if (SCSI_GENERIC_MAJOR == major(st.st_rdev)) return FT_SG; if (SCSI_TAPE_MAJOR == major(st.st_rdev)) return FT_ST; if (! bsg_major_checked) { bsg_major_checked = true; find_bsg_major(); } if (bsg_major == (int)major(st.st_rdev)) return FT_SG; } else if (S_ISBLK(st.st_mode)) { fp->devno = st.st_rdev; return FT_BLOCK; } else if (S_ISFIFO(st.st_mode)) { fp->devno = st.st_dev; return FT_FIFO; } fp->devno = st.st_dev; return FT_OTHER | FT_BLOCK; } static char * dd_filetype_str(int ft, char * buff) { int off = 0; if (FT_DEV_NULL & ft) off += sg_scnpr(buff + off, 32, "null device "); if (FT_SG & ft) off += sg_scnpr(buff + off, 32, "SCSI generic (sg) device "); if (FT_BLOCK & ft) off += sg_scnpr(buff + off, 32, "block device "); if (FT_FIFO & ft) off += sg_scnpr(buff + off, 32, "fifo (named pipe) "); if (FT_ST & ft) off += sg_scnpr(buff + off, 32, "SCSI tape device "); if (FT_RAW & ft) off += sg_scnpr(buff + off, 32, "raw device "); if (FT_OTHER & ft) off += sg_scnpr(buff + off, 32, "other (perhaps ordinary file) "); if (FT_ERROR & ft) sg_scnpr(buff + off, 32, "unable to 'stat' file "); return buff; } static int simplified_ft(const struct xcopy_fp_t * xfp) { int ftype = xfp->sg_type; switch (ftype) { case FT_BLOCK: case FT_ST: case FT_OTHER: /* typically regular file */ case FT_DEV_NULL: case FT_FIFO: case FT_ERROR: return ftype; default: if (FT_SG & ftype) { if ((0 == xfp->pdt) || (0xe == xfp->pdt)) /* D-A or RBC */ return FT_BLOCK; else if (0x1 == xfp->pdt) return FT_ST; } return FT_OTHER; } } static int seg_desc_from_dd_type(int in_ft, int in_off, int out_ft, int out_off) { int desc_type = -1; switch (in_ft) { case FT_BLOCK: switch (out_ft) { case FT_ST: if (out_off) break; if (in_off) desc_type = 0x8; else desc_type = 0; break; case FT_BLOCK: if (in_off || out_off) desc_type = 0xA; else desc_type = 2; break; default: break; } break; case FT_ST: if (in_off) break; switch (out_ft) { case FT_ST: if (!out_off) { desc_type = 3; break; } break; case FT_BLOCK: if (out_off) desc_type = 9; else desc_type = 3; break; case FT_DEV_NULL: desc_type = 6; break; default: break; } break; default: break; } return desc_type; } static void usage(int n_help) { if (n_help < 2) goto primary_help; else goto secondary_help; primary_help: pr2serr("Usage: " "sg_xcopy [app=0|1] [bpt=BPT] [bs=BS] [cat=0|1] [conv=CONV]\n" " [count=COUNT] [dc=0|1] [ibs=BS]\n" " [id_usage=hold|discard|disable] [if=IFILE] " "[iflag=FLAGS]\n" " [list_id=ID] [obs=BS] [of=OFILE] " "[oflag=FLAGS] [prio=PRIO]\n" " [seek=SEEK] [skip=SKIP] [time=0|1] " "[verbose=VERB]\n" " [--help] [--on_dst|--on_src] [--verbose] " "[--version]\n\n" " where:\n" " app if argument is 1 then open OFILE in append " "mode\n" " bpt is blocks_per_transfer (default: 128)\n" " bs block size (default is 512)\n"); pr2serr(" cat xcopy segment descriptor CAT bit (default: " "0)\n" " conv ignored\n" " count number of blocks to copy (def: device size)\n" " dc xcopy segment descriptor DC bit (default: 0)\n" " fco xcopy segment descriptor FCO bit (default: 0)\n" " ibs input block size (if given must be same as " "'bs=')\n" " id_usage sets list_id_usage field to hold (0), " "discard (2) or\n" " disable (3)\n" " if file or device to read from (def: stdin)\n" " iflag comma separated list of flags applying to " "IFILE\n" " list_id sets list_id field to ID (default: 1 or 0)\n" " obs output block size (if given must be same as " "'bs=')\n" " of file or device to write to (def: stdout), " "OFILE of '.'\n"); pr2serr(" treated as /dev/null\n" " oflag comma separated list of flags applying to " "OFILE\n" " prio set xcopy priority field to PRIO (def: 1)\n" " seek block position to start writing to OFILE\n" " skip block position to start reading from IFILE\n" " time 0->no timing(def), 1->time plus calculate " "throughput\n" " verbose 0->quiet(def), 1->some noise, 2->more noise, " "etc\n" " --help|-h print out this usage message then exit\n" " --on_dst send XCOPY command to OFILE\n" " --on_src send XCOPY command to IFILE\n" " --verbose|-v same action as verbose=1\n" " --version|-V print version information then exit\n\n" "Copy from IFILE to OFILE, similar to dd command; " "but using the SCSI\nEXTENDED COPY (XCOPY(LID1)) command. For " "list of flags, use '-hh'.\n"); return; secondary_help: pr2serr("FLAGS:\n" " append (o) open OFILE in append mode\n" " excl open corresponding device with O_EXCL\n" " flock call flock(LOCK_EX|LOCK_NB)\n" " null does nothing, placeholder\n" " pad set xcopy data descriptor PAD bit on\n" " corresponding device\n" " xcopy send XCOPY command to corresponding device\n" "\n" "ENVIRONMENT VARIABLES:\n" " XCOPY_TO_DST send XCOPY command to OFILE (destination) " "if no other\n" " indication\n" " XCOPY_TO_SRC send XCOPY command to IFILE (source)\n" ); } static int scsi_encode_seg_desc(uint8_t *seg_desc, int seg_desc_type, int64_t num_blk, uint64_t src_lba, uint64_t dst_lba) { int seg_desc_len = 0; seg_desc[0] = (uint8_t)seg_desc_type; seg_desc[1] = 0x0; if (xcopy_flag_cat) seg_desc[1] |= 0x1; if (xcopy_flag_dc) seg_desc[1] |= 0x2; if (xcopy_flag_fco) seg_desc[1] |= 0x4; if (seg_desc_type == 0x02) { seg_desc_len = 0x18; seg_desc[4] = 0; seg_desc[5] = 0; /* Source target index */ seg_desc[7] = 1; /* Destination target index */ sg_put_unaligned_be16(num_blk, seg_desc + 10); sg_put_unaligned_be64(src_lba, seg_desc + 12); sg_put_unaligned_be64(dst_lba, seg_desc + 20); } sg_put_unaligned_be16(seg_desc_len, seg_desc + 2); return seg_desc_len + 4; } static int scsi_extended_copy(int sg_fd, uint8_t list_id, uint8_t *src_desc, int src_desc_len, uint8_t *dst_desc, int dst_desc_len, int seg_desc_type, int64_t num_blk, uint64_t src_lba, uint64_t dst_lba) { uint8_t xcopyBuff[256]; int desc_offset = 16; int seg_desc_len; int verb, res; char b[80]; verb = (verbose > 1) ? (verbose - 2) : 0; memset(xcopyBuff, 0, 256); xcopyBuff[0] = list_id; xcopyBuff[1] = (list_id_usage << 3) | priority; xcopyBuff[2] = 0; xcopyBuff[3] = src_desc_len + dst_desc_len; /* Two target descriptors */ memcpy(xcopyBuff + desc_offset, src_desc, src_desc_len); desc_offset += src_desc_len; memcpy(xcopyBuff + desc_offset, dst_desc, dst_desc_len); desc_offset += dst_desc_len; seg_desc_len = scsi_encode_seg_desc(xcopyBuff + desc_offset, seg_desc_type, num_blk, src_lba, dst_lba); xcopyBuff[11] = seg_desc_len; /* One segment descriptor */ desc_offset += seg_desc_len; /* set noisy so if a UA happens it will be printed to stderr */ res = sg_ll_3party_copy_out(sg_fd, SA_XCOPY_LID1, list_id, DEF_GROUP_NUM, DEF_3PC_OUT_TIMEOUT, xcopyBuff, desc_offset, true, verb); if (res) { sg_get_category_sense_str(res, sizeof(b), b, verb); pr2serr("Xcopy(LID1): %s\n", b); } return res; } /* Return of 0 -> success, see sg_ll_read_capacity*() otherwise */ static int scsi_read_capacity(struct xcopy_fp_t *xfp) { int res; unsigned int ui; uint8_t rcBuff[RCAP16_REPLY_LEN]; int verb; char b[80]; verb = (verbose ? verbose - 1: 0); res = sg_ll_readcap_10(xfp->sg_fd, false /* pmi */, 0, rcBuff, READ_CAP_REPLY_LEN, true, verb); if (0 != res) { sg_get_category_sense_str(res, sizeof(b), b, verb); pr2serr("Read capacity(10): %s\n", b); return res; } if ((0xff == rcBuff[0]) && (0xff == rcBuff[1]) && (0xff == rcBuff[2]) && (0xff == rcBuff[3])) { uint64_t ls; res = sg_ll_readcap_16(xfp->sg_fd, false /* pmi */, 0, rcBuff, RCAP16_REPLY_LEN, true, verb); if (0 != res) { sg_get_category_sense_str(res, sizeof(b), b, verb); pr2serr("Read capacity(16): %s\n", b); return res; } ls = sg_get_unaligned_be64(rcBuff + 0); xfp->num_sect = (int64_t)(ls + 1); xfp->sect_sz = sg_get_unaligned_be32(rcBuff + 8); } else { ui = sg_get_unaligned_be32(rcBuff + 0); /* take care not to sign extend values > 0x7fffffff */ xfp->num_sect = (int64_t)ui + 1; xfp->sect_sz = sg_get_unaligned_be32(rcBuff + 4); } if (verbose) pr2serr(" %s: number of blocks=%" PRId64 " [0x%" PRIx64 "], block " "size=%d\n", xfp->fname, xfp->num_sect, xfp->num_sect, xfp->sect_sz); return 0; } static int scsi_operating_parameter(struct xcopy_fp_t *xfp, int is_target) { bool valid = false; int res, ftype, snlid, verb; uint32_t rcBuffLen = 256, len, n, td_list = 0; uint32_t num, max_target_num, max_segment_num, max_segment_len; uint32_t max_desc_len, max_inline_data, held_data_limit; uint8_t rcBuff[256]; char b[80]; verb = (verbose ? verbose - 1: 0); ftype = xfp->sg_type; if (FT_SG & ftype) { if ((0 == xfp->pdt) || (0xe == xfp->pdt)) /* direct-access or RBC */ ftype |= FT_BLOCK; else if (0x1 == xfp->pdt) ftype |= FT_ST; } res = sg_ll_receive_copy_results(xfp->sg_fd, SA_COPY_OP_PARAMS, 0, rcBuff, rcBuffLen, true, verb); if (0 != res) { sg_get_category_sense_str(res, sizeof(b), b, verb); pr2serr("Xcopy operating parameters: %s\n", b); return -res; } len = sg_get_unaligned_be32(rcBuff + 0); if (len > rcBuffLen) { pr2serr(" < %d too long for internal buffer, output " "truncated\n", len, rcBuffLen); } if (verbose > 2) { pr2serr("\nOutput response in hex:\n"); hex2stderr(rcBuff, len, 1); } snlid = rcBuff[4] & 0x1; max_target_num = sg_get_unaligned_be16(rcBuff + 8); max_segment_num = sg_get_unaligned_be16(rcBuff + 10); max_desc_len = sg_get_unaligned_be32(rcBuff + 12); max_segment_len = sg_get_unaligned_be32(rcBuff + 16); xfp->max_bytes = max_segment_len ? max_segment_len : UINT32_MAX; max_inline_data = sg_get_unaligned_be32(rcBuff + 20); if (verbose) { pr2serr(" >> %s response:\n", rec_copy_op_params_str); pr2serr(" Support No List IDentifier (SNLID): %d\n", snlid); pr2serr(" Maximum target descriptor count: %u\n", (unsigned int)max_target_num); pr2serr(" Maximum segment descriptor count: %u\n", (unsigned int)max_segment_num); pr2serr(" Maximum descriptor list length: %u\n", (unsigned int)max_desc_len); pr2serr(" Maximum segment length: %u\n", (unsigned int)max_segment_len); pr2serr(" Maximum inline data length: %u\n", (unsigned int)max_inline_data); } held_data_limit = sg_get_unaligned_be32(rcBuff + 24); if (list_id_usage < 0) { if (!held_data_limit) list_id_usage = 2; else list_id_usage = 0; } if (verbose) { pr2serr(" Held data limit: %u (list_id_usage: %d)\n", (unsigned int)held_data_limit, list_id_usage); num = sg_get_unaligned_be32(rcBuff + 28); pr2serr(" Maximum stream device transfer size: %u\n", (unsigned int)num); pr2serr(" Maximum concurrent copies: %u\n", rcBuff[36]); if (rcBuff[37] > 30) pr2serr(" Data segment granularity: 2**%u bytes\n", rcBuff[37]); else pr2serr(" Data segment granularity: %u bytes\n", 1 << rcBuff[37]); if (rcBuff[38] > 30) pr2serr(" Inline data granularity: 2**%u bytes\n", rcBuff[38]); else pr2serr(" Inline data granularity: %u bytes\n", 1 << rcBuff[38]); if (rcBuff[39] > 30) pr2serr(" Held data granularity: 2**%u bytes\n", 1 << rcBuff[39]); else pr2serr(" Held data granularity: %u bytes\n", 1 << rcBuff[39]); pr2serr(" Implemented descriptor list:\n"); } xfp->min_bytes = 1 << rcBuff[37]; for (n = 0; n < rcBuff[43]; n++) { switch(rcBuff[44 + n]) { case 0x00: /* copy block to stream device */ if (!is_target && (ftype & FT_BLOCK)) valid = true; if (is_target && (ftype & FT_ST)) valid = true; if (verbose) pr2serr(" Copy Block to Stream device\n"); break; case 0x01: /* copy stream to block device */ if (!is_target && (ftype & FT_ST)) valid = true; if (is_target && (ftype & FT_BLOCK)) valid = true; if (verbose) pr2serr(" Copy Stream to Block device\n"); break; case 0x02: /* copy block to block device */ if (!is_target && (ftype & FT_BLOCK)) valid = true; if (is_target && (ftype & FT_BLOCK)) valid = true; if (verbose) pr2serr(" Copy Block to Block device\n"); break; case 0x03: /* copy stream to stream device */ if (!is_target && (ftype & FT_ST)) valid = true; if (is_target && (ftype & FT_ST)) valid = true; if (verbose) pr2serr(" Copy Stream to Stream device\n"); break; case 0x04: /* copy inline data to stream device */ if (!is_target && (ftype & FT_OTHER)) valid = true; if (is_target && (ftype & FT_ST)) valid = true; if (verbose) pr2serr(" Copy inline data to Stream device\n"); break; case 0x05: /* copy embedded data to stream device */ if (!is_target && (ftype & FT_OTHER)) valid = true; if (is_target && (ftype & FT_ST)) valid = true; if (verbose) pr2serr(" Copy embedded data to Stream device\n"); break; case 0x06: /* Read from stream device and discard */ if (!is_target && (ftype & FT_ST)) valid = true; if (is_target && (ftype & FT_DEV_NULL)) valid = true; if (verbose) pr2serr(" Read from stream device and discard\n"); break; case 0x07: /* Verify block or stream device operation */ if (!is_target && (ftype & (FT_ST | FT_BLOCK))) valid = true; if (is_target && (ftype & (FT_ST | FT_BLOCK))) valid = true; if (verbose) pr2serr(" Verify block or stream device operation\n"); break; case 0x08: /* copy block device with offset to stream device */ if (!is_target && (ftype & FT_BLOCK)) valid = true; if (is_target && (ftype & FT_ST)) valid = true; if (verbose) pr2serr(" Copy block device with offset to stream " "device\n"); break; case 0x09: /* copy stream device to block device with offset */ if (!is_target && (ftype & FT_ST)) valid = true; if (is_target && (ftype & FT_BLOCK)) valid = true; if (verbose) pr2serr(" Copy stream device to block device with " "offset\n"); break; case 0x0a: /* copy block device with offset to block device with * offset */ if (!is_target && (ftype & FT_BLOCK)) valid = true; if (is_target && (ftype & FT_BLOCK)) valid = true; if (verbose) pr2serr(" Copy block device with offset to block " "device with offset\n"); break; case 0x0b: /* copy block device to stream device and hold data */ if (!is_target && (ftype & FT_BLOCK)) valid = true; if (is_target && (ftype & FT_ST)) valid = true; if (verbose) pr2serr(" Copy block device to stream device and hold " "data\n"); break; case 0x0c: /* copy stream device to block device and hold data */ if (!is_target && (ftype & FT_ST)) valid = true; if (is_target && (ftype & FT_BLOCK)) valid = true; if (verbose) pr2serr(" Copy stream device to block device and hold " "data\n"); break; case 0x0d: /* copy block device to block device and hold data */ if (!is_target && (ftype & FT_BLOCK)) valid = true; if (is_target && (ftype & FT_BLOCK)) valid = true; if (verbose) pr2serr(" Copy block device to block device and hold " "data\n"); break; case 0x0e: /* copy stream device to stream device and hold data */ if (!is_target && (ftype & FT_ST)) valid = true; if (is_target && (ftype & FT_ST)) valid = true; if (verbose) pr2serr(" Copy block device to block device and hold " "data\n"); break; case 0x0f: /* read from stream device and hold data */ if (!is_target && (ftype & FT_ST)) valid = true; if (is_target && (ftype & FT_DEV_NULL)) valid = true; if (verbose) pr2serr(" Read from stream device and hold data\n"); break; case 0xe0: /* FC N_Port_Name */ if (verbose) pr2serr(" FC N_Port_Name target descriptor\n"); td_list |= TD_FC_WWPN; break; case 0xe1: /* FC Port_ID */ if (verbose) pr2serr(" FC Port_ID target descriptor\n"); td_list |= TD_FC_PORT; break; case 0xe2: /* FC N_Port_ID with N_Port_Name checking */ if (verbose) pr2serr(" FC N_Port_ID with N_Port_Name target " "descriptor\n"); td_list |= TD_FC_WWPN_AND_PORT; break; case 0xe3: /* Parallel Interface T_L */ if (verbose) pr2serr(" SPI T_L target descriptor\n"); td_list |= TD_SPI; break; case 0xe4: /* identification descriptor */ if (verbose) pr2serr(" Identification target descriptor\n"); td_list |= TD_VPD; break; case 0xe5: /* IPv4 */ if (verbose) pr2serr(" IPv4 target descriptor\n"); td_list |= TD_IPV4; break; case 0xe6: /* Alias */ if (verbose) pr2serr(" Alias target descriptor\n"); td_list |= TD_ALIAS; break; case 0xe7: /* RDMA */ if (verbose) pr2serr(" RDMA target descriptor\n"); td_list |= TD_RDMA; break; case 0xe8: /* FireWire */ if (verbose) pr2serr(" IEEE 1394 target descriptor\n"); td_list |= TD_FW; break; case 0xe9: /* SAS */ if (verbose) pr2serr(" SAS target descriptor\n"); td_list |= TD_SAS; break; case 0xea: /* IPv6 */ if (verbose) pr2serr(" IPv6 target descriptor\n"); td_list |= TD_IPV6; break; case 0xeb: /* IP Copy Service */ if (verbose) pr2serr(" IP Copy Service target descriptor\n"); td_list |= TD_IP_COPY_SERVICE; break; case 0xfe: /* ROD */ if (verbose) pr2serr(" ROD target descriptor\n"); td_list |= TD_ROD; break; default: pr2serr(">> Unhandled target descriptor 0x%02x\n", rcBuff[44 + n]); break; } } if (! valid) { pr2serr(">> no matching target descriptor supported\n"); td_list = 0; } return td_list; } static void decode_designation_descriptor(const uint8_t * bp, int i_len) { char c[2048]; sg_get_designation_descriptor_str(NULL, bp, i_len, 1, verbose, sizeof(c), c); pr2serr("%s", c); } static int desc_from_vpd_id(int sg_fd, uint8_t *desc, int desc_len, unsigned int block_size, bool pad) { int res, verb; uint8_t rcBuff[256], *bp, *best = NULL; unsigned int len = 254; int off = -1, i_len, best_len = 0, assoc, desig, f_desig = 0; char b[80]; verb = (verbose ? verbose - 1: 0); memset(rcBuff, 0xff, len); res = sg_ll_inquiry(sg_fd, false, true /* evpd */, VPD_DEVICE_ID, rcBuff, 4, true, verb); if (0 != res) { if (SG_LIB_CAT_ILLEGAL_REQ == res) pr2serr("Device identification VPD page not found\n"); else { sg_get_category_sense_str(res, sizeof(b), b, verbose); pr2serr("VPD inquiry (Device ID): %s\n", b); pr2serr(" try again with '-vv'\n"); } return res; } else if (rcBuff[1] != VPD_DEVICE_ID) { pr2serr("invalid VPD response\n"); return SG_LIB_CAT_MALFORMED; } len = sg_get_unaligned_be16(rcBuff + 2) + 4; res = sg_ll_inquiry(sg_fd, false, true, VPD_DEVICE_ID, rcBuff, len, true, verb); if (0 != res) { sg_get_category_sense_str(res, sizeof(b), b, verbose); pr2serr("VPD inquiry (Device ID): %s\n", b); return res; } else if (rcBuff[1] != VPD_DEVICE_ID) { pr2serr("invalid VPD response\n"); return SG_LIB_CAT_MALFORMED; } if (verbose > 2) { pr2serr("Output response in hex:\n"); hex2stderr(rcBuff, len, 1); } while (sg_vpd_dev_id_iter(rcBuff + 4, len - 4, &off, 0, -1, -1) == 0) { bp = rcBuff + 4 + off; i_len = bp[3]; if (((unsigned int)off + i_len + 4) > len) { pr2serr(" VPD page error: designator length %d longer " "than\n remaining response length=%d\n", i_len, (len - off)); return SG_LIB_CAT_MALFORMED; } assoc = ((bp[1] >> 4) & 0x3); desig = (bp[1] & 0xf); if (verbose > 2) pr2serr(" Desc %d: assoc %u desig %u len %d\n", off, assoc, desig, i_len); /* Identification descriptor's Designator length must be <= 20. */ if (i_len > 20) continue; if (desig == /*NAA=*/3) { best = bp; best_len = i_len; break; } if (desig == /*EUI64=*/2) { if (!best || f_desig < 2) { best = bp; best_len = i_len; f_desig = 2; } } else if (desig == /*T10*/1) { if (!best || f_desig == 0) { best = bp; best_len = i_len; f_desig = desig; } } else if (desig == /*vend.spec.=*/0) { if (!best) { best = bp; best_len = i_len; f_desig = desig; } } } if (best) { if (verbose) decode_designation_descriptor(best, best_len); if (best_len + 4 < desc_len) { memset(desc, 0, 32); desc[0] = 0xe4; /* Identification Descriptor */ memcpy(desc + 4, best, best_len + 4); desc[4] &= 0x0f; /* code set */ desc[5] &= 0x3f; /* association and designator type */ if (pad) desc[28] = 0x4; sg_put_unaligned_be24((uint32_t)block_size, desc + 29); if (verbose > 3) { pr2serr("Descriptor in hex (bs %d):\n", block_size); hex2stderr(desc, 32, 1); } return 32; } return best_len + 8; } return 0; } static void calc_duration_throughput(int contin) { struct timeval end_tm, res_tm; double a, b; int64_t blks; if (start_tm_valid && (start_tm.tv_sec || start_tm.tv_usec)) { blks = (in_full > out_full) ? in_full : out_full; gettimeofday(&end_tm, NULL); res_tm.tv_sec = end_tm.tv_sec - start_tm.tv_sec; res_tm.tv_usec = end_tm.tv_usec - start_tm.tv_usec; if (res_tm.tv_usec < 0) { --res_tm.tv_sec; res_tm.tv_usec += 1000000; } a = res_tm.tv_sec; a += (0.000001 * res_tm.tv_usec); b = (double)blk_sz * blks; pr2serr("time to transfer data%s: %d.%06d secs", (contin ? " so far" : ""), (int)res_tm.tv_sec, (int)res_tm.tv_usec); if ((a > 0.00001) && (b > 511)) pr2serr(" at %.2f MB/sec\n", b / (a * 1000000.0)); else pr2serr("\n"); } } /* Process arguments given to 'iflag=" or 'oflag=" options. Returns 0 * on success, 1 on error. */ static int process_flags(const char * arg, struct xcopy_fp_t * fp) { char buff[256]; char * cp; char * np; strncpy(buff, arg, sizeof(buff) - 1); buff[sizeof(buff) - 1] = '\0'; if ('\0' == buff[0]) { pr2serr("no flag found\n"); return 1; } cp = buff; do { np = strchr(cp, ','); if (np) *np++ = '\0'; if (0 == strcmp(cp, "append")) fp->append = true; else if (0 == strcmp(cp, "excl")) fp->excl = true; else if (0 == strcmp(cp, "flock")) fp->flock = true; else if (0 == strcmp(cp, "null")) ; else if (0 == strcmp(cp, "pad")) fp->pad = true; else if (0 == strcmp(cp, "xcopy")) fp->xcopy_given = true; /* for ddpt compatibility */ else { pr2serr("unrecognised flag: %s\n", cp); return 1; } cp = np; } while (cp); return 0; } /* Returns open input file descriptor (>= 0) or a negative value * (-SG_LIB_FILE_ERROR or -SG_LIB_CAT_OTHER) if error. */ static int open_if(struct xcopy_fp_t * ifp, int vb) { int infd = -1, flags, fl, res, err; char ebuff[EBUFF_SZ]; ifp->sg_type = dd_filetype(ifp); if (vb) pr2serr(" >> Input file type: %s, devno %d:%d\n", dd_filetype_str(ifp->sg_type, ebuff), major(ifp->devno), minor(ifp->devno)); if (FT_ERROR & ifp->sg_type) { pr2serr(ME "unable access %s\n", ifp->fname); return -SG_LIB_FILE_ERROR; } flags = O_NONBLOCK; if (ifp->excl) flags |= O_EXCL; fl = O_RDWR; if ((infd = open(ifp->fname, fl | flags)) < 0) { fl = O_RDONLY; if ((infd = open(ifp->fname, fl | flags)) < 0) { err = errno; snprintf(ebuff, EBUFF_SZ, ME "could not open %.500s for sg reading", ifp->fname); perror(ebuff); return -sg_convert_errno(err); } } if (vb) pr2serr(" open input(sg_io), flags=0x%x\n", fl | flags); if (ifp->flock) { res = flock(infd, LOCK_EX | LOCK_NB); if (res < 0) { close(infd); snprintf(ebuff, EBUFF_SZ, ME "flock(LOCK_EX | LOCK_NB) on %.500s " "failed", ifp->fname); perror(ebuff); return -SG_LIB_FLOCK_ERR; } } return infd; } /* Returns open output file descriptor (>= 0), -1 for don't * bother opening (e.g. /dev/null), or a more negative value * (-SG_LIB_FILE_ERROR or -SG_LIB_CAT_OTHER) if error. */ static int open_of(struct xcopy_fp_t * ofp, int vb) { int outfd, flags, res, err; char ebuff[EBUFF_SZ]; ofp->sg_type = dd_filetype(ofp); if (vb) pr2serr(" >> Output file type: %s, devno %d:%d\n", dd_filetype_str(ofp->sg_type, ebuff), major(ofp->devno), minor(ofp->devno)); if (!(FT_DEV_NULL & ofp->sg_type)) { flags = O_RDWR | O_NONBLOCK; if (ofp->excl) flags |= O_EXCL; if (ofp->append) flags |= O_APPEND; if ((outfd = open(ofp->fname, flags)) < 0) { err = errno; snprintf(ebuff, EBUFF_SZ, ME "could not open %.500s for sg writing", ofp->fname); perror(ebuff); return -sg_convert_errno(err); } if (vb) pr2serr(" open output(sg_io), flags=0x%x\n", flags); } else outfd = -1; /* don't bother opening */ if ((outfd >= 0) && ofp->flock) { res = flock(outfd, LOCK_EX | LOCK_NB); if (res < 0) { close(outfd); snprintf(ebuff, EBUFF_SZ, ME "flock(LOCK_EX | LOCK_NB) on %.500s " "failed", ofp->fname); perror(ebuff); return -SG_LIB_FLOCK_ERR; } } return outfd; } static int num_chs_in_str(const char * s, int slen, int ch) { int res = 0; while (--slen >= 0) { if (ch == s[slen]) ++res; } return res; } int main(int argc, char * argv[]) { bool bpt_given = false; bool list_id_given = false; bool on_src = false; bool on_src_dst_given = false; bool verbose_given = false; bool version_given = false; int res, k, n, keylen, infd, outfd, xcopy_fd; int blocks = 0; int bpt = DEF_BLOCKS_PER_TRANSFER; int dst_desc_len; int ibs = 0; int num_help = 0; int num_xcopy = 0; int obs = 0; int ret = 0; int seg_desc_type; int src_desc_len; int64_t skip = 0; int64_t seek = 0; uint8_t list_id = 1; char * key; char * buf; char str[STR_SZ]; uint8_t src_desc[256]; uint8_t dst_desc[256]; ixcf.fname[0] = '\0'; oxcf.fname[0] = '\0'; ixcf.num_sect = -1; oxcf.num_sect = -1; if (argc < 2) { pr2serr("Won't default both IFILE to stdin _and_ OFILE to stdout\n"); pr2serr("For more information use '--help'\n"); return SG_LIB_CONTRADICT; } for (k = 1; k < argc; k++) { if (argv[k]) { strncpy(str, argv[k], STR_SZ - 1); str[STR_SZ - 1] = '\0'; } else continue; for (key = str, buf = key; *buf && *buf != '=';) buf++; if (*buf) *buf++ = '\0'; keylen = (int)strlen(key); if (0 == strncmp(key, "app", 3)) { ixcf.append = !! sg_get_num(buf); oxcf.append = ixcf.append; } else if (0 == strcmp(key, "bpt")) { bpt = sg_get_num(buf); if (-1 == bpt) { pr2serr(ME "bad argument to 'bpt='\n"); return SG_LIB_SYNTAX_ERROR; } bpt_given = true; } else if (0 == strcmp(key, "bs")) { blk_sz = sg_get_num(buf); if (-1 == blk_sz) { pr2serr(ME "bad argument to 'bs='\n"); return SG_LIB_SYNTAX_ERROR; } } else if (0 == strcmp(key, "list_id")) { ret = sg_get_num(buf); if (-1 == ret || ret > 0xff) { pr2serr(ME "bad argument to 'list_id='\n"); return SG_LIB_SYNTAX_ERROR; } list_id = (ret & 0xff); list_id_given = true; } else if (0 == strcmp(key, "id_usage")) { if (!strncmp(buf, "hold", 4)) list_id_usage = 0; else if (!strncmp(buf, "discard", 7)) list_id_usage = 2; else if (!strncmp(buf, "disable", 7)) list_id_usage = 3; else { pr2serr(ME "bad argument to 'id_usage='\n"); return SG_LIB_SYNTAX_ERROR; } } else if (0 == strcmp(key, "conv")) pr2serr(ME ">>> ignoring all 'conv=' arguments\n"); else if (0 == strcmp(key, "count")) { if (0 != strcmp("-1", buf)) { dd_count = sg_get_llnum(buf); if (-1LL == dd_count) { pr2serr(ME "bad argument to 'count='\n"); return SG_LIB_SYNTAX_ERROR; } } /* treat 'count=-1' as calculate count (same as not given) */ } else if (0 == strcmp(key, "prio")) { priority = sg_get_num(buf); } else if (0 == strcmp(key, "cat")) { n = sg_get_num(buf); if (n < 0 || n > 1) { pr2serr(ME "bad argument to 'cat='\n"); return SG_LIB_SYNTAX_ERROR; } xcopy_flag_cat = !! n; } else if (0 == strcmp(key, "dc")) { n = sg_get_num(buf); if (n < 0 || n > 1) { pr2serr(ME "bad argument to 'dc='\n"); return SG_LIB_SYNTAX_ERROR; } xcopy_flag_dc = !! n; } else if (0 == strcmp(key, "fco")) { n = sg_get_num(buf); if (n < 0 || n > 1) { pr2serr(ME "bad argument to 'fco='\n"); return SG_LIB_SYNTAX_ERROR; } xcopy_flag_fco = !! n; } else if (0 == strcmp(key, "ibs")) { ibs = sg_get_num(buf); } else if (strcmp(key, "if") == 0) { if ('\0' != ixcf.fname[0]) { pr2serr("Second IFILE argument??\n"); return SG_LIB_CONTRADICT; } else { memcpy(ixcf.fname, buf, INOUTF_SZ - 1); ixcf.fname[INOUTF_SZ - 1] = '\0'; } } else if (0 == strcmp(key, "iflag")) { if (process_flags(buf, &ixcf)) { pr2serr(ME "bad argument to 'iflag='\n"); return SG_LIB_SYNTAX_ERROR; } } else if (0 == strcmp(key, "obs")) { obs = sg_get_num(buf); } else if (strcmp(key, "of") == 0) { if ('\0' != oxcf.fname[0]) { pr2serr("Second OFILE argument??\n"); return SG_LIB_CONTRADICT; } else { memcpy(oxcf.fname, buf, INOUTF_SZ - 1); oxcf.fname[INOUTF_SZ - 1] = '\0'; } } else if (0 == strcmp(key, "oflag")) { if (process_flags(buf, &oxcf)) { pr2serr(ME "bad argument to 'oflag='\n"); return SG_LIB_SYNTAX_ERROR; } } else if (0 == strcmp(key, "seek")) { seek = sg_get_llnum(buf); if (-1LL == seek) { pr2serr(ME "bad argument to 'seek='\n"); return SG_LIB_SYNTAX_ERROR; } } else if (0 == strcmp(key, "skip")) { skip = sg_get_llnum(buf); if (-1LL == skip) { pr2serr(ME "bad argument to 'skip='\n"); return SG_LIB_SYNTAX_ERROR; } } else if (0 == strcmp(key, "time")) do_time = !! sg_get_num(buf); else if (0 == strncmp(key, "verb", 4)) verbose = sg_get_num(buf); /* look for long options that start with '--' */ else if (0 == strncmp(key, "--help", 6)) ++num_help; else if (0 == strncmp(key, "--on_dst", 8)) { on_src = false; if (on_src_dst_given) { pr2serr("Syntax error - either specify --on_src OR " "--on_dst\n"); pr2serr("For more information use '--help'\n"); return SG_LIB_CONTRADICT; } on_src_dst_given = true; } else if (0 == strncmp(key, "--on_src", 8)) { on_src = true; if (on_src_dst_given) { pr2serr("Syntax error - either specify --on_src OR " "--on_dst\n"); pr2serr("For more information use '--help'\n"); return SG_LIB_CONTRADICT; } on_src_dst_given = true; } else if (0 == strncmp(key, "--verb", 6)) { verbose_given = true; verbose += 1; } else if (0 == strncmp(key, "--vers", 6)) version_given = true; else if (0 == strncmp(key, "--xcopy", 7)) ; /* ignore; for compatibility with ddpt */ /* look for short options that start with a single '-', they can be * concaternated (e.g. '-vvvV') */ else if ((keylen > 1) && ('-' == key[0]) && ('-' != key[1])) { res = 0; n = num_chs_in_str(key + 1, keylen - 1, 'h'); num_help += n; res += n; n = num_chs_in_str(key + 1, keylen - 1, 'v'); verbose += n; if (n > 0) verbose_given = true; res += n; n = num_chs_in_str(key + 1, keylen - 1, 'V'); if (n > 0) version_given = true; res += n; n = num_chs_in_str(key + 1, keylen - 1, 'x'); /* accept and ignore; for compatibility with ddpt */ res += n; if (res < (keylen - 1)) { pr2serr(ME "Unrecognised short option in '%s', try " "'--help'\n", key); if (0 == num_help) return -1; } } else { pr2serr("Unrecognized option '%s'\n", key); if (num_help) usage(num_help); else pr2serr("For more information use '--help'\n"); return SG_LIB_SYNTAX_ERROR; } } if (num_help) { usage(num_help); return 0; } #ifdef DEBUG pr2serr("In DEBUG mode, "); if (verbose_given && version_given) { pr2serr("but override: '-vV' given, zero verbose and continue\n"); verbose_given = false; version_given = false; verbose = 0; } else if (! verbose_given) { pr2serr("set '-vv'\n"); verbose = 2; } else pr2serr("keep verbose=%d\n", verbose); #else if (verbose_given && version_given) pr2serr("Not in DEBUG mode, so '-vV' has no special action\n"); #endif if (version_given) { pr2serr(ME "%s\n", version_str); return 0; } if (! on_src_dst_given) { if (ixcf.xcopy_given == oxcf.xcopy_given) { char * csp; char * cdp; csp = getenv(XCOPY_TO_SRC); cdp = getenv(XCOPY_TO_DST); if ((!! csp) == (!! cdp)) { #if DEF_XCOPY_SRC0_DST1 == 0 on_src = true; #else on_src = false; #endif } else if (csp) on_src = true; else on_src = false; } else if (ixcf.xcopy_given) on_src = true; else on_src = false; } if (verbose > 1) pr2serr(" >>> Extended Copy(LID1) command will be sent to %s device " "[%s]\n", (on_src ? "src" : "dst"), (on_src ? ixcf.fname : oxcf.fname)); if ((ibs && blk_sz && (ibs != blk_sz)) || (obs && blk_sz && (obs != blk_sz))) { pr2serr("If 'ibs' or 'obs' given must be same as 'bs'\n"); pr2serr("For more information use '--help'\n"); return SG_LIB_CONTRADICT; } if (blk_sz && !ibs) ibs = blk_sz; if (blk_sz && !obs) obs = blk_sz; if ((skip < 0) || (seek < 0)) { pr2serr("skip and seek cannot be negative\n"); return SG_LIB_CONTRADICT; } if (oxcf.append && (seek > 0)) { pr2serr("Can't use both append and seek switches\n"); return SG_LIB_CONTRADICT; } if (bpt < 1) { pr2serr("bpt must be greater than 0\n"); return SG_LIB_SYNTAX_ERROR; } else if (bpt > MAX_BLOCKS_PER_TRANSFER) { pr2serr("bpt must be less than or equal to %d\n", MAX_BLOCKS_PER_TRANSFER); return SG_LIB_SYNTAX_ERROR; } if (list_id_usage == 3) { /* list_id usage disabled */ if (! list_id_given) list_id = 0; if (list_id) { pr2serr("list_id disabled by id_usage flag\n"); return SG_LIB_SYNTAX_ERROR; } } if (verbose > 1) pr2serr(" >>> " ME " if=%s skip=%" PRId64 " of=%s seek=%" PRId64 " count=%" PRId64 "\n", ixcf.fname, skip, oxcf.fname, seek, dd_count); install_handler(SIGINT, interrupt_handler); install_handler(SIGQUIT, interrupt_handler); install_handler(SIGPIPE, interrupt_handler); install_handler(SIGUSR1, siginfo_handler); ixcf.pdt = -1; oxcf.pdt = -1; if (ixcf.fname[0] && ('-' != ixcf.fname[0])) { infd = open_if(&ixcf, verbose); if (infd < 0) return -infd; } else { pr2serr("stdin not acceptable for IFILE\n"); return SG_LIB_FILE_ERROR; } if (oxcf.fname[0] && ('-' != oxcf.fname[0])) { outfd = open_of(&oxcf, verbose); if (outfd < -1) return -outfd; } else { pr2serr("stdout not acceptable for OFILE\n"); return SG_LIB_FILE_ERROR; } res = open_sg(&ixcf, verbose); if (res < 0) { if (-1 == res) return SG_LIB_FILE_ERROR; else return SG_LIB_CAT_OTHER; } res = open_sg(&oxcf, verbose); if (res < 0) { if (-1 == res) return SG_LIB_FILE_ERROR; else return SG_LIB_CAT_OTHER; } if ((STDIN_FILENO == infd) && (STDOUT_FILENO == outfd)) { pr2serr("Can't have both 'if' as stdin _and_ 'of' as stdout\n"); pr2serr("For more information use '--help'\n"); return SG_LIB_CONTRADICT; } res = scsi_read_capacity(&ixcf); if (SG_LIB_CAT_UNIT_ATTENTION == res) { pr2serr("Unit attention (%s in), continuing\n", read_cap_str); res = scsi_read_capacity(&ixcf); } else if (SG_LIB_CAT_ABORTED_COMMAND == res) { pr2serr("Aborted command (%s in), continuing\n", read_cap_str); res = scsi_read_capacity(&ixcf); } if (0 != res) { if (res == SG_LIB_CAT_INVALID_OP) pr2serr("%s command not supported on %s\n", read_cap_str, ixcf.fname); else if (res == SG_LIB_CAT_NOT_READY) pr2serr("%s failed on %s - not ready\n", read_cap_str, ixcf.fname); else pr2serr("Unable to %s on %s\n", read_cap_str, ixcf.fname); ixcf.num_sect = -1; } else if (ibs && ixcf.sect_sz != ibs) { pr2serr(">> warning: block size on %s confusion: " "ibs=%d, device claims=%d\n", ixcf.fname, ibs, ixcf.sect_sz); } if (skip && ixcf.num_sect < skip) { pr2serr("argument to 'skip=' exceeds device size (max %" PRId64 ")\n", ixcf.num_sect); return SG_LIB_SYNTAX_ERROR; } res = scsi_read_capacity(&oxcf); if (SG_LIB_CAT_UNIT_ATTENTION == res) { pr2serr("Unit attention (%s out), continuing\n", read_cap_str); res = scsi_read_capacity(&oxcf); } else if (SG_LIB_CAT_ABORTED_COMMAND == res) { pr2serr("Aborted command (%s out), continuing\n", read_cap_str); res = scsi_read_capacity(&oxcf); } if (0 != res) { if (res == SG_LIB_CAT_INVALID_OP) pr2serr("%s command not supported on %s\n", read_cap_str, oxcf.fname); else pr2serr("Unable to %s on %s\n", read_cap_str, oxcf.fname); oxcf.num_sect = -1; } else if (obs && obs != oxcf.sect_sz) { pr2serr(">> warning: block size on %s confusion: obs=%d, device " "claims=%d\n", oxcf.fname, obs, oxcf.sect_sz); } if (seek && oxcf.num_sect < seek) { pr2serr("argument to 'seek=' exceeds device size (max %" PRId64 ")\n", oxcf.num_sect); return SG_LIB_SYNTAX_ERROR; } if ((dd_count < 0) || ((verbose > 0) && (0 == dd_count))) { if (xcopy_flag_dc == 0) { dd_count = ixcf.num_sect - skip; if ((dd_count * ixcf.sect_sz) > ((oxcf.num_sect - seek) * oxcf.sect_sz)) dd_count = (oxcf.num_sect - seek) * oxcf.sect_sz / ixcf.sect_sz; } else { dd_count = oxcf.num_sect - seek; if ((dd_count * oxcf.sect_sz) > ((ixcf.num_sect - skip) * ixcf.sect_sz)) dd_count = (ixcf.num_sect - skip) * ixcf.sect_sz / oxcf.sect_sz; } } else { int64_t dd_bytes; if (xcopy_flag_dc) dd_bytes = dd_count * oxcf.sect_sz; else dd_bytes = dd_count * ixcf.sect_sz; if (dd_bytes > ixcf.num_sect * ixcf.sect_sz) { pr2serr("access beyond end of source device (max %" PRId64 ")\n", ixcf.num_sect); return SG_LIB_SYNTAX_ERROR; } if (dd_bytes > oxcf.num_sect * oxcf.sect_sz) { pr2serr("access beyond end of target device (max %" PRId64 ")\n", oxcf.num_sect); return SG_LIB_SYNTAX_ERROR; } } res = scsi_operating_parameter(&ixcf, 0); if (res < 0) { if (SG_LIB_CAT_UNIT_ATTENTION == -res) { pr2serr("Unit attention (%s), continuing\n", rec_copy_op_params_str); res = scsi_operating_parameter(&ixcf, 0); } if (-res == SG_LIB_CAT_INVALID_OP) { pr2serr("%s command not supported on %s\n", rec_copy_op_params_str, ixcf.fname); ret = sg_convert_errno(EINVAL); goto fini; } else if (-res == SG_LIB_CAT_NOT_READY) pr2serr("%s failed on %s - not ready\n", rec_copy_op_params_str, ixcf.fname); else { pr2serr("Unable to %s on %s\n", rec_copy_op_params_str, ixcf.fname); ret = -res; goto fini; } } else if (res == 0) { ret = SG_LIB_CAT_INVALID_OP; goto fini; } if (res & TD_VPD) { if (verbose) pr2serr(" >> using VPD identification for source %s\n", ixcf.fname); src_desc_len = desc_from_vpd_id(ixcf.sg_fd, src_desc, sizeof(src_desc), ixcf.sect_sz, ixcf.pad); if (src_desc_len > (int)sizeof(src_desc)) { pr2serr("source descriptor too large (%d bytes)\n", res); ret = SG_LIB_CAT_MALFORMED; goto fini; } } else { ret = SG_LIB_CAT_INVALID_OP; goto fini; } res = scsi_operating_parameter(&oxcf, 1); if (res < 0) { if (SG_LIB_CAT_UNIT_ATTENTION == -res) { pr2serr("Unit attention (%s), continuing\n", rec_copy_op_params_str); res = scsi_operating_parameter(&oxcf, 1); } if (-res == SG_LIB_CAT_INVALID_OP) { pr2serr("%s command not supported on %s\n", rec_copy_op_params_str, oxcf.fname); ret = sg_convert_errno(EINVAL); goto fini; } else if (-res == SG_LIB_CAT_NOT_READY) pr2serr("%s failed on %s - not ready\n", rec_copy_op_params_str, oxcf.fname); else { pr2serr("Unable to %s on %s\n", rec_copy_op_params_str, oxcf.fname); ret = -res; goto fini; } } else if (res == 0) { ret = SG_LIB_CAT_INVALID_OP; goto fini; } if (res & TD_VPD) { if (verbose) pr2serr(" >> using VPD identification for destination %s\n", oxcf.fname); dst_desc_len = desc_from_vpd_id(oxcf.sg_fd, dst_desc, sizeof(dst_desc), oxcf.sect_sz, oxcf.pad); if (dst_desc_len > (int)sizeof(dst_desc)) { pr2serr("destination descriptor too large (%d bytes)\n", res); ret = SG_LIB_CAT_MALFORMED; goto fini; } } else { ret = SG_LIB_CAT_INVALID_OP; goto fini; } if (dd_count < 0) { pr2serr("Couldn't calculate count, please give one\n"); return SG_LIB_CAT_OTHER; } if (dd_count < (ixcf.min_bytes / (uint32_t)ixcf.sect_sz)) { pr2serr("not enough data to read (min %" PRIu32 " bytes)\n", oxcf.min_bytes); return SG_LIB_CAT_OTHER; } if (dd_count < (oxcf.min_bytes / (uint32_t)oxcf.sect_sz)) { pr2serr("not enough data to write (min %" PRIu32 " bytes)\n", oxcf.min_bytes); return SG_LIB_CAT_OTHER; } if (bpt_given) { if (xcopy_flag_dc) { if ((uint32_t)(bpt * oxcf.sect_sz) > oxcf.max_bytes) { pr2serr("bpt too large (max %" PRIu32 " blocks)\n", oxcf.max_bytes / (uint32_t)oxcf.sect_sz); return SG_LIB_SYNTAX_ERROR; } } else { if ((uint32_t)(bpt * ixcf.sect_sz) > ixcf.max_bytes) { pr2serr("bpt too large (max %" PRIu32 " blocks)\n", ixcf.max_bytes / (uint32_t)ixcf.sect_sz); return SG_LIB_SYNTAX_ERROR; } } } else { uint32_t r; if (xcopy_flag_dc) r = oxcf.max_bytes / (uint32_t)oxcf.sect_sz; else r = ixcf.max_bytes / (uint32_t)ixcf.sect_sz; bpt = (r > MAX_BLOCKS_PER_TRANSFER) ? MAX_BLOCKS_PER_TRANSFER : r; } seg_desc_type = seg_desc_from_dd_type(simplified_ft(&ixcf), 0, simplified_ft(&oxcf), 0); if (do_time) { start_tm.tv_sec = 0; start_tm.tv_usec = 0; gettimeofday(&start_tm, NULL); start_tm_valid = true; } if (verbose) pr2serr("Start of loop, count=%" PRId64 ", bpt=%d, lba_in=%" PRId64 ", lba_out=%" PRId64 "\n", dd_count, bpt, skip, seek); xcopy_fd = (on_src) ? infd : outfd; while (dd_count > 0) { if (dd_count > bpt) blocks = bpt; else blocks = dd_count; res = scsi_extended_copy(xcopy_fd, list_id, src_desc, src_desc_len, dst_desc, dst_desc_len, seg_desc_type, blocks, skip, seek); if (res != 0) break; in_full += blocks; skip += blocks; seek += blocks; dd_count -= blocks; num_xcopy++; } if (do_time) calc_duration_throughput(0); if (res) pr2serr("sg_xcopy: failed with error %d (%" PRId64 " blocks left)\n", res, dd_count); else pr2serr("sg_xcopy: %" PRId64 " blocks, %d command%s\n", in_full, num_xcopy, ((num_xcopy > 1) ? "s" : "")); ret = res; fini: /* file handles not explicitly closed; let process cleanup do that */ if (0 == verbose) { if (! sg_if_can2stderr("sg_xcopy failed: ", ret)) pr2serr("Some error occurred, try again with '-v' or '-vv' for " "more information\n"); } return (ret >= 0) ? ret : SG_LIB_CAT_OTHER; }