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Differential D29571 Diff 86812 usr.sbin/bhyve/block_if.c

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usr.sbin/bhyve/block_if.c

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static void static void
blockif_init(void) blockif_init(void)
{ {
mevent_add(SIGCONT, EVF_SIGNAL, blockif_sigcont_handler, NULL); mevent_add(SIGCONT, EVF_SIGNAL, blockif_sigcont_handler, NULL);
(void) signal(SIGCONT, SIG_IGN); (void) signal(SIGCONT, SIG_IGN);
} }
int int
blockif_legacy_config(nvlist_t *nvl, const char *opts) blockif_legacy_config(config_node_t *node, const char *opts)
{ {
char *cp, *path; char *cp, *path;
if (opts == NULL) if (opts == NULL)
return (0); return (0);
cp = strchr(opts, ','); cp = strchr(opts, ',');
if (cp == NULL) { if (cp == NULL) {
set_config_value_node(nvl, "path", opts); set_config_value_node(node, "path", opts);
return (0); return (0);
} }
path = strndup(opts, cp - opts); path = strndup(opts, cp - opts);
set_config_value_node(nvl, "path", path); set_config_value_node(node, "path", path);
free(path); free(path);
return (pci_parse_legacy_config(nvl, cp + 1)); return (pci_parse_legacy_config(node, cp + 1));
} }
struct blockif_ctxt * struct blockif_ctxt *
blockif_open(nvlist_t *nvl, const char *ident) blockif_open(config_node_t *node, const char *ident)
{ {
char tname[MAXCOMLEN + 1]; char tname[MAXCOMLEN + 1];
char name[MAXPATHLEN]; char name[MAXPATHLEN];
const char *path, *pssval, *ssval; const char *path, *pssval, *ssval;
char *cp; char *cp;
struct blockif_ctxt *bc; struct blockif_ctxt *bc;
struct stat sbuf; struct stat sbuf;
struct diocgattr_arg arg; struct diocgattr_arg arg;
Show All 10 Lines#endif
pthread_once(&blockif_once, blockif_init); pthread_once(&blockif_once, blockif_init);
fd = -1; fd = -1;
extra = 0; extra = 0;
ssopt = 0; ssopt = 0;
ro = 0; ro = 0;
nodelete = 0; nodelete = 0;
if (get_config_bool_node_default(nvl, "nocache", false)) if (get_config_bool_node_default(node, "nocache", false))
extra |= O_DIRECT; extra |= O_DIRECT;
if (get_config_bool_node_default(nvl, "nodelete", false)) if (get_config_bool_node_default(node, "nodelete", false))
nodelete = 1; nodelete = 1;
if (get_config_bool_node_default(nvl, "sync", false) || if (get_config_bool_node_default(node, "sync", false) ||
get_config_bool_node_default(nvl, "direct", false)) get_config_bool_node_default(node, "direct", false))
extra |= O_SYNC; extra |= O_SYNC;
if (get_config_bool_node_default(nvl, "ro", false)) if (get_config_bool_node_default(node, "ro", false))
ro = 1; ro = 1;
ssval = get_config_value_node(nvl, "sectorsize"); ssval = get_config_value_node(node, "sectorsize");
if (ssval != NULL) { if (ssval != NULL) {
ssopt = strtol(ssval, &cp, 10); ssopt = strtol(ssval, &cp, 10);
if (cp == ssval) { if (cp == ssval) {
EPRINTLN("Invalid sector size \"%s\"", ssval); EPRINTLN("Invalid sector size \"%s\"", ssval);
goto err; goto err;
} }
if (*cp == '\0') { if (*cp == '\0') {
pssopt = ssopt; pssopt = ssopt;
} else if (*cp == '/') { } else if (*cp == '/') {
pssval = cp + 1; pssval = cp + 1;
pssopt = strtol(pssval, &cp, 10); pssopt = strtol(pssval, &cp, 10);
if (cp == pssval || *cp != '\0') { if (cp == pssval || *cp != '\0') {
EPRINTLN("Invalid sector size \"%s\"", ssval); EPRINTLN("Invalid sector size \"%s\"", ssval);
goto err; goto err;
} }
} else { } else {
EPRINTLN("Invalid sector size \"%s\"", ssval); EPRINTLN("Invalid sector size \"%s\"", ssval);
goto err; goto err;
} }
} }
path = get_config_value_node(nvl, "path"); path = get_config_value_node(node, "path");
if (path == NULL) { if (path == NULL) {
EPRINTLN("Missing \"path\" for block device."); EPRINTLN("Missing \"path\" for block device.");
goto err; goto err;
} }
fd = open(path, (ro ? O_RDONLY : O_RDWR) | extra); fd = open(path, (ro ? O_RDONLY : O_RDWR) | extra);
if (fd < 0 && !ro) { if (fd < 0 && !ro) {
/* Attempt a r/w fail with a r/o open */ /* Attempt a r/w fail with a r/o open */
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