diff options
Diffstat (limited to 'sbin/mdconfig/mdconfig.c')
| -rw-r--r-- | sbin/mdconfig/mdconfig.c | 134 |
1 files changed, 124 insertions, 10 deletions
diff --git a/sbin/mdconfig/mdconfig.c b/sbin/mdconfig/mdconfig.c index 079be71d8670..3bcd7b259489 100644 --- a/sbin/mdconfig/mdconfig.c +++ b/sbin/mdconfig/mdconfig.c @@ -21,10 +21,16 @@ #include <sys/module.h> #include <sys/linker.h> #include <sys/mdioctl.h> +#include <sys/sysctl.h> +#include <sys/queue.h> + +int intcmp(const void *, const void *); +int list(const int); +int query(const int, const int); struct md_ioctl mdio; -enum {UNSET, ATTACH, DETACH} action = UNSET; +enum {UNSET, ATTACH, DETACH, LIST} action = UNSET; void mdmaybeload(void); @@ -34,6 +40,7 @@ usage() fprintf(stderr, "Usage:\n"); fprintf(stderr, "\tmdconfig -a -t type [-o [no]option]... [ -f file] [-s size] [-u unit]\n"); fprintf(stderr, "\tmdconfig -d -u unit\n"); + fprintf(stderr, "\tmdconfig -l [-u unit]\n"); fprintf(stderr, "\t\ttype = {malloc, preload, vnode, swap}\n"); fprintf(stderr, "\t\toption = {cluster, compress, reserve, autounit}\n"); fprintf(stderr, "\t\tsize = %%d (512 byte blocks), %%dk (kB), %%dm (MB) or %%dg (GB)\n"); @@ -48,7 +55,7 @@ main(int argc, char **argv) int cmdline = 0; for (;;) { - ch = getopt(argc, argv, "ab:df:o:s:t:u:"); + ch = getopt(argc, argv, "ab:df:lo:s:t:u:"); if (ch == -1) break; switch (ch) { @@ -65,6 +72,13 @@ main(int argc, char **argv) mdio.md_options = MD_AUTOUNIT; cmdline = 3; break; + case 'l': + if (cmdline != 0) + usage(); + action = LIST; + mdio.md_options = MD_AUTOUNIT; + cmdline = 3; + break; case 't': if (cmdline != 1) usage(); @@ -132,10 +146,9 @@ main(int argc, char **argv) usage(); if (!strncmp(optarg, "/dev/", 5)) optarg += 5; - if (!strncmp(optarg, "md", 2)) + if (!strncmp(optarg, MD_NAME, sizeof(MD_NAME) - 1)) optarg += 2; mdio.md_unit = strtoul(optarg, NULL, 0); - mdio.md_unit = strtoul(optarg, NULL, 0); mdio.md_options &= ~MD_AUTOUNIT; break; default: @@ -144,20 +157,121 @@ main(int argc, char **argv) } mdmaybeload(); - fd = open("/dev/mdctl", O_RDWR, 0); + fd = open("/dev/" MDCTL_NAME, O_RDWR, 0); if (fd < 0) - err(1, "open(/dev/mdctl)"); - if (action == ATTACH) { + err(1, "open(/dev/%s)", MDCTL_NAME); + if (action == LIST) { + if (mdio.md_options & MD_AUTOUNIT) + list(fd); + else + query(fd, mdio.md_unit); + } else if (action == ATTACH) { i = ioctl(fd, MDIOCATTACH, &mdio); + if (i < 0) + err(1, "ioctl(/dev/%s)", MDCTL_NAME); } else { if (mdio.md_options & MD_AUTOUNIT) usage(); i = ioctl(fd, MDIOCDETACH, &mdio); + if (i < 0) + err(1, "ioctl(/dev/%s)", MDCTL_NAME); } - if (i < 0) - err(1, "ioctl(/dev/mdctl)"); if (mdio.md_options & MD_AUTOUNIT) - printf("md%d\n", mdio.md_unit); + printf("%s%d\n", MD_NAME, mdio.md_unit); + close (fd); + return (0); +} + +int +intcmp(const void *a, const void *b) +{ + + return (*(int *)a - *(int *)b); +} + +struct dl { + int unit; + SLIST_ENTRY(dl) slist; +}; + +SLIST_HEAD(, dl) dlist = SLIST_HEAD_INITIALIZER(&dlist); + +int +list(const int fd) +{ + char *disklist, *p, *p2, *p3; + int unit, dll; + struct dl *dp, *di, *dn; + + if (sysctlbyname("kern.disks", NULL, &dll, NULL, NULL) == -1) + err(1, "sysctlbyname: kern.disks"); + if ( (disklist = malloc(dll)) == NULL) + err(1, "malloc"); + if (sysctlbyname("kern.disks", disklist, &dll, NULL, NULL) == -1) + err(1, "sysctlbyname: kern.disks"); + + for (p = disklist; + (p2 = strsep(&p, " ")) != NULL;) { + if (strncmp(p2, MD_NAME, sizeof(MD_NAME) - 1) != 0) + continue; + p2 += 2; + unit = strtoul(p2, &p3, 10); + if (p2 == p3) + continue; + dp = calloc(sizeof *dp, 1); + dp->unit = unit; + dn = SLIST_FIRST(&dlist); + if (dn == NULL || dn->unit > unit) { + SLIST_INSERT_HEAD(&dlist, dp, slist); + } else { + SLIST_FOREACH(di, &dlist, slist) { + dn = SLIST_NEXT(di, slist); + if (dn == NULL || dn->unit > unit) { + SLIST_INSERT_AFTER(di, dp, slist); + break; + } + } + } + } + SLIST_FOREACH(di, &dlist, slist) + query(fd, di->unit); + while (!SLIST_EMPTY(&dlist)) { + di = SLIST_FIRST(&dlist); + SLIST_REMOVE_HEAD(&dlist, slist); + free(di); + } + free(disklist); + return (0); +} + +int +query(const int fd, const int unit) +{ + + mdio.md_unit = unit; + + if (ioctl(fd, MDIOCQUERY, &mdio) < 0) + err(1, "ioctl(/dev/%s)", MDCTL_NAME); + + switch (mdio.md_type) { + case MD_MALLOC: + (void)printf("%s%d\tmalloc\t%d KBytes\n", MD_NAME, + mdio.md_unit, mdio.md_size / 2); + break; + case MD_PRELOAD: + (void)printf("%s%d\tpreload\t%d KBytes\n", MD_NAME, + mdio.md_unit, mdio.md_size / 2); + break; + case MD_SWAP: + (void)printf("%s%d\tswap\t%d KBytes\n", MD_NAME, + mdio.md_unit, mdio.md_size / 2); + break; + case MD_VNODE: + (void)printf("%s%d\tvnode\t%d KBytes\n", MD_NAME, + mdio.md_unit, mdio.md_size / 2); + break; + } + return (0); } |