diff options
Diffstat (limited to 'usr.sbin/smbmsg/smbmsg.c')
-rw-r--r-- | usr.sbin/smbmsg/smbmsg.c | 344 |
1 files changed, 0 insertions, 344 deletions
diff --git a/usr.sbin/smbmsg/smbmsg.c b/usr.sbin/smbmsg/smbmsg.c deleted file mode 100644 index 425b782..0000000 --- a/usr.sbin/smbmsg/smbmsg.c +++ /dev/null @@ -1,344 +0,0 @@ -/*- - * Copyright (C) 2004 Joerg Wunsch - * All Rights Reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -/* - * Send or receive messages over an SMBus. - */ - -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sysexits.h> -#include <unistd.h> - -#include <sys/types.h> -#include <sys/ioctl.h> - -#include <dev/smbus/smb.h> - -#include "pathnames.h" - -static const char *dev = PATH_DEFAULTSMBDEV; -static const char *bytefmt = "0x%02x"; -static const char *wordfmt = "0x%04x"; -static const char *fmt; - -static int fd; /* file descriptor for /dev/smbX */ -static int cflag = -1; /* SMBus cmd */ -static int iflag = -1; /* input data */ -static int oflag = -1; /* output data */ -static int pflag; /* probe bus */ -static int slave = -1; /* slave address */ -static int wflag; /* word IO */ - -static unsigned char ibuf[SMB_MAXBLOCKSIZE]; -static unsigned char obuf[SMB_MAXBLOCKSIZE]; -static unsigned short oword, iword; - -/* - * The I2C specs say that all addresses below 16 and above or equal - * 240 are reserved. Address 0 is the global address, but we do not - * care for this detail. - */ -#define MIN_I2C_ADDR 16 -#define MAX_I2C_ADDR 240 - -static int do_io(void); -static int getnum(const char *s); -static void probe_i2c(void); -static void usage(void); - -static void -usage(void) -{ - fprintf(stderr, - "usage: smbmsg [-f dev] -p\n" - " smbmsg [-f dev] -s slave [-F fmt] [-c cmd] [-w] " - "[-i incnt] [-o outcnt] [outdata ...]\n"); - exit(EX_USAGE); -} - -static int -getnum(const char *s) -{ - char *endp; - unsigned long l; - - l = strtoul(s, &endp, 0); - if (*s != '\0' && *endp == '\0') - return (int)l; - return (-1); -} - -static void -probe_i2c(void) -{ - unsigned char addr; - int flags; -#define IS_READABLE 1 -#define IS_WRITEABLE 2 - struct smbcmd c; - - printf("Probing for devices on %s:\n", dev); - - for (addr = MIN_I2C_ADDR; addr < MAX_I2C_ADDR; addr += 2) { - c.slave = addr; - flags = 0; - if (ioctl(fd, SMB_RECVB, &c) != -1) - flags = IS_READABLE; - if (ioctl(fd, SMB_QUICK_WRITE, &c) != -1) - flags |= IS_WRITEABLE; - if (flags != 0) { - printf("Device @0x%02x: ", addr); - if (flags & IS_READABLE) - putchar('r'); - if (flags & IS_WRITEABLE) - putchar('w'); - putchar('\n'); - } - } -} - -static int -do_io(void) -{ - struct smbcmd c; - int i; - - c.slave = slave; - c.cmd = cflag; - - if (fmt == NULL && iflag > 0) - fmt = wflag? wordfmt: bytefmt; - - if (cflag == -1) { - /* operations that do not require a command byte */ - if (iflag == -1 && oflag == 0) - /* 0 bytes output: quick write operation */ - return (ioctl(fd, SMB_QUICK_WRITE, &c)); - else if (iflag == 0 && oflag == -1) - /* 0 bytes input: quick read operation */ - return (ioctl(fd, SMB_QUICK_READ, &c)); - else if (iflag == 1 && oflag == -1) { - /* no command, 1 byte input: receive byte op. */ - if (ioctl(fd, SMB_RECVB, &c) == -1) - return (-1); - printf(fmt, (unsigned char)c.cmd); - putchar('\n'); - return (0); - } else if (iflag == -1 && oflag == 1) { - /* no command, 1 byte output: send byte op. */ - c.cmd = obuf[0]; - return (ioctl(fd, SMB_SENDB, &c)); - } else - return (-2); - } - if (iflag == 1 && oflag == -1) { - /* command + 1 byte input: read byte op. */ - c.data.byte_ptr = ibuf; - if (ioctl(fd, SMB_READB, &c) == -1) - return (-1); - printf(fmt, (int)(unsigned char)ibuf[0]); - putchar('\n'); - return (0); - } else if (iflag == -1 && oflag == 1) { - /* command + 1 byte output: write byte op. */ - c.data.byte = obuf[0]; - return (ioctl(fd, SMB_WRITEB, &c)); - } else if (wflag && iflag == 2 && oflag == -1) { - /* command + 2 bytes input: read word op. */ - c.data.word_ptr = &iword; - if (ioctl(fd, SMB_READW, &c) == -1) - return (-1); - printf(fmt, (int)(unsigned short)iword); - putchar('\n'); - return (0); - } else if (wflag && iflag == -1 && oflag == 2) { - /* command + 2 bytes output: write word op. */ - c.data.word = oword; - return (ioctl(fd, SMB_WRITEW, &c)); - } else if (wflag && iflag == 2 && oflag == 2) { - /* - * command + 2 bytes output + 2 bytes input: - * "process call" op. - */ - c.data.process.sdata = oword; - c.data.process.rdata = &iword; - if (ioctl(fd, SMB_PCALL, &c) == -1) - return (-1); - printf(fmt, (int)(unsigned short)iword); - putchar('\n'); - return (0); - } else if (iflag > 1 && oflag == -1) { - /* command + > 1 bytes of input: block read */ - c.data.byte_ptr = ibuf; - c.count = iflag; - if (ioctl(fd, SMB_BREAD, &c) == -1) - return (-1); - for (i = 0; i < iflag; i++) { - if (i != 0) - putchar(' '); - printf(fmt, ibuf[i]); - } - putchar('\n'); - return (0); - } else if (iflag == -1 && oflag > 1) { - /* command + > 1 bytes of output: block write */ - c.data.byte_ptr = obuf; - c.count = oflag; - return (ioctl(fd, SMB_BWRITE, &c)); - } - - return (-2); -} - - -int -main(int argc, char **argv) -{ - int i, n, errs = 0; - int savederrno; - - while ((i = getopt(argc, argv, "F:c:f:i:o:ps:w")) != -1) - switch (i) { - case 'F': - fmt = optarg; - break; - - case 'c': - if ((cflag = getnum(optarg)) == -1) - errx(EX_USAGE, "Invalid number: %s", optarg); - if (cflag < 0 || cflag >= 256) - errx(EX_USAGE, - "CMD out of range: %d", - cflag); - break; - - case 'f': - dev = optarg; - break; - - case 'i': - if ((iflag = getnum(optarg)) == -1) - errx(EX_USAGE, "Invalid number: %s", optarg); - if (iflag < 0 || iflag > SMB_MAXBLOCKSIZE) - errx(EX_USAGE, - "# input bytes out of range: %d", - iflag); - break; - - case 'o': - if ((oflag = getnum(optarg)) == -1) - errx(EX_USAGE, "Invalid number: %s", optarg); - if (oflag < 0 || oflag > SMB_MAXBLOCKSIZE) - errx(EX_USAGE, - "# output bytes out of range: %d", - oflag); - break; - - case 'p': - pflag = 1; - break; - - case 's': - if ((slave = getnum(optarg)) == -1) - errx(EX_USAGE, "Invalid number: %s", optarg); - - if (slave < MIN_I2C_ADDR || slave >= MAX_I2C_ADDR) - errx(EX_USAGE, - "Slave address out of range: %d", - slave); - break; - - case 'w': - wflag = 1; - break; - - default: - errs++; - } - argc -= optind; - argv += optind; - if (errs || (slave != -1 && pflag) || (slave == -1 && !pflag)) - usage(); - if (wflag && - !((iflag == 2 && oflag == -1) || - (iflag == -1 && oflag == 2) || - (iflag == 2 && oflag == 2))) - errx(EX_USAGE, "Illegal # IO bytes for word IO"); - if (!pflag && iflag == -1 && oflag == -1) - errx(EX_USAGE, "Nothing to do"); - if (pflag && (cflag != -1 || iflag != -1 || oflag != -1 || wflag != 0)) - usage(); - if (oflag > 0) { - if (oflag == 2 && wflag) { - if (argc == 0) - errx(EX_USAGE, "Too few arguments for -o count"); - if ((n = getnum(*argv)) == -1) - errx(EX_USAGE, "Invalid number: %s", *argv); - if (n < 0 || n >= 65535) - errx(EX_USAGE, "Value out of range: %d", n); - oword = n; - argc--; - argv++; - } else for (i = 0; i < oflag; i++, argv++, argc--) { - if (argc == 0) - errx(EX_USAGE, "Too few arguments for -o count"); - if ((n = getnum(*argv)) == -1) - errx(EX_USAGE, "Invalid number: %s", *argv); - if (n < 0 || n >= 256) - errx(EX_USAGE, "Value out of range: %d", n); - obuf[i] = n; - } - } - if (argc != 0) - usage(); - - if ((fd = open(dev, O_RDWR)) == -1) - err(EX_UNAVAILABLE, "Cannot open %s", dev); - - i = 0; - if (pflag) - probe_i2c(); - else - i = do_io(); - - savederrno = errno; - close(fd); - errno = savederrno; - - if (i == -1) - err(EX_UNAVAILABLE, "Error performing SMBus IO"); - else if (i == -2) - errx(EX_USAGE, "Invalid option combination"); - - return (0); -} |