Index: head/sys/dev/extres/clk/clk.c =================================================================== --- head/sys/dev/extres/clk/clk.c (revision 314698) +++ head/sys/dev/extres/clk/clk.c (revision 314699) @@ -1,1387 +1,1505 @@ /*- * Copyright 2016 Michal Meloun * 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 THE 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 THE 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. */ #include __FBSDID("$FreeBSD$"); #include "opt_platform.h" #include #include #include #include #include #include #include #include #include #include +#include #include #include #include #ifdef FDT #include #include #include #endif #include MALLOC_DEFINE(M_CLOCK, "clocks", "Clock framework"); /* Forward declarations. */ struct clk; struct clknodenode; struct clkdom; typedef TAILQ_HEAD(clknode_list, clknode) clknode_list_t; typedef TAILQ_HEAD(clkdom_list, clkdom) clkdom_list_t; /* Default clock methods. */ static int clknode_method_init(struct clknode *clk, device_t dev); static int clknode_method_recalc_freq(struct clknode *clk, uint64_t *freq); static int clknode_method_set_freq(struct clknode *clk, uint64_t fin, uint64_t *fout, int flags, int *stop); static int clknode_method_set_gate(struct clknode *clk, bool enable); static int clknode_method_set_mux(struct clknode *clk, int idx); /* * Clock controller methods. */ static clknode_method_t clknode_methods[] = { CLKNODEMETHOD(clknode_init, clknode_method_init), CLKNODEMETHOD(clknode_recalc_freq, clknode_method_recalc_freq), CLKNODEMETHOD(clknode_set_freq, clknode_method_set_freq), CLKNODEMETHOD(clknode_set_gate, clknode_method_set_gate), CLKNODEMETHOD(clknode_set_mux, clknode_method_set_mux), CLKNODEMETHOD_END }; DEFINE_CLASS_0(clknode, clknode_class, clknode_methods, 0); /* * Clock node - basic element for modeling SOC clock graph. It holds the clock * provider's data about the clock, and the links for the clock's membership in * various lists. */ struct clknode { KOBJ_FIELDS; /* Clock nodes topology. */ struct clkdom *clkdom; /* Owning clock domain */ TAILQ_ENTRY(clknode) clkdom_link; /* Domain list entry */ TAILQ_ENTRY(clknode) clklist_link; /* Global list entry */ /* String based parent list. */ const char **parent_names; /* Array of parent names */ int parent_cnt; /* Number of parents */ int parent_idx; /* Parent index or -1 */ /* Cache for already resolved names. */ struct clknode **parents; /* Array of potential parents */ struct clknode *parent; /* Current parent */ /* Parent/child relationship links. */ clknode_list_t children; /* List of our children */ TAILQ_ENTRY(clknode) sibling_link; /* Our entry in parent's list */ /* Details of this device. */ void *softc; /* Instance softc */ const char *name; /* Globally unique name */ intptr_t id; /* Per domain unique id */ int flags; /* CLK_FLAG_* */ struct sx lock; /* Lock for this clock */ int ref_cnt; /* Reference counter */ int enable_cnt; /* Enabled counter */ /* Cached values. */ uint64_t freq; /* Actual frequency */ + + struct sysctl_ctx_list sysctl_ctx; }; /* * Per consumer data, information about how a consumer is using a clock node. * A pointer to this structure is used as a handle in the consumer interface. */ struct clk { device_t dev; struct clknode *clknode; int enable_cnt; }; /* * Clock domain - a group of clocks provided by one clock device. */ struct clkdom { device_t dev; /* Link to provider device */ TAILQ_ENTRY(clkdom) link; /* Global domain list entry */ clknode_list_t clknode_list; /* All clocks in the domain */ #ifdef FDT clknode_ofw_mapper_func *ofw_mapper; /* Find clock using FDT xref */ #endif }; /* * The system-wide list of clock domains. */ static clkdom_list_t clkdom_list = TAILQ_HEAD_INITIALIZER(clkdom_list); /* * Each clock node is linked on a system-wide list and can be searched by name. */ static clknode_list_t clknode_list = TAILQ_HEAD_INITIALIZER(clknode_list); /* * Locking - we use three levels of locking: * - First, topology lock is taken. This one protect all lists. * - Second level is per clknode lock. It protects clknode data. * - Third level is outside of this file, it protect clock device registers. * First two levels use sleepable locks; clock device can use mutex or sx lock. */ static struct sx clk_topo_lock; SX_SYSINIT(clock_topology, &clk_topo_lock, "Clock topology lock"); #define CLK_TOPO_SLOCK() sx_slock(&clk_topo_lock) #define CLK_TOPO_XLOCK() sx_xlock(&clk_topo_lock) #define CLK_TOPO_UNLOCK() sx_unlock(&clk_topo_lock) #define CLK_TOPO_ASSERT() sx_assert(&clk_topo_lock, SA_LOCKED) #define CLK_TOPO_XASSERT() sx_assert(&clk_topo_lock, SA_XLOCKED) #define CLKNODE_SLOCK(_sc) sx_slock(&((_sc)->lock)) #define CLKNODE_XLOCK(_sc) sx_xlock(&((_sc)->lock)) #define CLKNODE_UNLOCK(_sc) sx_unlock(&((_sc)->lock)) static void clknode_adjust_parent(struct clknode *clknode, int idx); +enum clknode_sysctl_type { + CLKNODE_SYSCTL_PARENT, + CLKNODE_SYSCTL_PARENTS_LIST, + CLKNODE_SYSCTL_CHILDREN_LIST, +}; + +static int clknode_sysctl(SYSCTL_HANDLER_ARGS); +static int clkdom_sysctl(SYSCTL_HANDLER_ARGS); + /* * Default clock methods for base class. */ static int clknode_method_init(struct clknode *clknode, device_t dev) { return (0); } static int clknode_method_recalc_freq(struct clknode *clknode, uint64_t *freq) { return (0); } static int clknode_method_set_freq(struct clknode *clknode, uint64_t fin, uint64_t *fout, int flags, int *stop) { *stop = 0; return (0); } static int clknode_method_set_gate(struct clknode *clk, bool enable) { return (0); } static int clknode_method_set_mux(struct clknode *clk, int idx) { return (0); } /* * Internal functions. */ /* * Duplicate an array of parent names. * * Compute total size and allocate a single block which holds both the array of * pointers to strings and the copied strings themselves. Returns a pointer to * the start of the block where the array of copied string pointers lives. * * XXX Revisit this, no need for the DECONST stuff. */ static const char ** strdup_list(const char **names, int num) { size_t len, slen; const char **outptr, *ptr; int i; len = sizeof(char *) * num; for (i = 0; i < num; i++) { if (names[i] == NULL) continue; slen = strlen(names[i]); if (slen == 0) panic("Clock parent names array have empty string"); len += slen + 1; } outptr = malloc(len, M_CLOCK, M_WAITOK | M_ZERO); ptr = (char *)(outptr + num); for (i = 0; i < num; i++) { if (names[i] == NULL) continue; outptr[i] = ptr; slen = strlen(names[i]) + 1; bcopy(names[i], __DECONST(void *, outptr[i]), slen); ptr += slen; } return (outptr); } /* * Recompute the cached frequency for this node and all its children. */ static int clknode_refresh_cache(struct clknode *clknode, uint64_t freq) { int rv; struct clknode *entry; CLK_TOPO_XASSERT(); /* Compute generated frequency. */ rv = CLKNODE_RECALC_FREQ(clknode, &freq); if (rv != 0) { /* XXX If an error happens while refreshing children * this leaves the world in a partially-updated state. * Panic for now. */ panic("clknode_refresh_cache failed for '%s'\n", clknode->name); return (rv); } /* Refresh cache for this node. */ clknode->freq = freq; /* Refresh cache for all children. */ TAILQ_FOREACH(entry, &(clknode->children), sibling_link) { rv = clknode_refresh_cache(entry, freq); if (rv != 0) return (rv); } return (0); } /* * Public interface. */ struct clknode * clknode_find_by_name(const char *name) { struct clknode *entry; CLK_TOPO_ASSERT(); TAILQ_FOREACH(entry, &clknode_list, clklist_link) { if (strcmp(entry->name, name) == 0) return (entry); } return (NULL); } struct clknode * clknode_find_by_id(struct clkdom *clkdom, intptr_t id) { struct clknode *entry; CLK_TOPO_ASSERT(); TAILQ_FOREACH(entry, &clkdom->clknode_list, clkdom_link) { if (entry->id == id) return (entry); } return (NULL); } /* -------------------------------------------------------------------------- */ /* * Clock domain functions */ /* Find clock domain associated to device in global list. */ struct clkdom * clkdom_get_by_dev(const device_t dev) { struct clkdom *entry; CLK_TOPO_ASSERT(); TAILQ_FOREACH(entry, &clkdom_list, link) { if (entry->dev == dev) return (entry); } return (NULL); } #ifdef FDT /* Default DT mapper. */ static int clknode_default_ofw_map(struct clkdom *clkdom, uint32_t ncells, phandle_t *cells, struct clknode **clk) { CLK_TOPO_ASSERT(); if (ncells == 0) *clk = clknode_find_by_id(clkdom, 1); else if (ncells == 1) *clk = clknode_find_by_id(clkdom, cells[0]); else return (ERANGE); if (*clk == NULL) return (ENXIO); return (0); } #endif /* * Create a clock domain. Returns with the topo lock held. */ struct clkdom * clkdom_create(device_t dev) { struct clkdom *clkdom; clkdom = malloc(sizeof(struct clkdom), M_CLOCK, M_WAITOK | M_ZERO); clkdom->dev = dev; TAILQ_INIT(&clkdom->clknode_list); #ifdef FDT clkdom->ofw_mapper = clknode_default_ofw_map; #endif + SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), + SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), + OID_AUTO, "clocks", + CTLTYPE_STRING | CTLFLAG_RD, + clkdom, 0, clkdom_sysctl, + "A", + "Clock list for the domain"); + return (clkdom); } void clkdom_unlock(struct clkdom *clkdom) { CLK_TOPO_UNLOCK(); } void clkdom_xlock(struct clkdom *clkdom) { CLK_TOPO_XLOCK(); } /* * Finalize initialization of clock domain. Releases topo lock. * * XXX Revisit failure handling. */ int clkdom_finit(struct clkdom *clkdom) { struct clknode *clknode; int i, rv; #ifdef FDT phandle_t node; if ((node = ofw_bus_get_node(clkdom->dev)) == -1) { device_printf(clkdom->dev, "%s called on not ofw based device\n", __func__); return (ENXIO); } #endif rv = 0; /* Make clock domain globally visible. */ CLK_TOPO_XLOCK(); TAILQ_INSERT_TAIL(&clkdom_list, clkdom, link); #ifdef FDT OF_device_register_xref(OF_xref_from_node(node), clkdom->dev); #endif /* Register all clock names into global list. */ TAILQ_FOREACH(clknode, &clkdom->clknode_list, clkdom_link) { TAILQ_INSERT_TAIL(&clknode_list, clknode, clklist_link); } /* * At this point all domain nodes must be registered and all * parents must be valid. */ TAILQ_FOREACH(clknode, &clkdom->clknode_list, clkdom_link) { if (clknode->parent_cnt == 0) continue; for (i = 0; i < clknode->parent_cnt; i++) { if (clknode->parents[i] != NULL) continue; if (clknode->parent_names[i] == NULL) continue; clknode->parents[i] = clknode_find_by_name( clknode->parent_names[i]); if (clknode->parents[i] == NULL) { device_printf(clkdom->dev, "Clock %s have unknown parent: %s\n", clknode->name, clknode->parent_names[i]); rv = ENODEV; } } /* If parent index is not set yet... */ if (clknode->parent_idx == CLKNODE_IDX_NONE) { device_printf(clkdom->dev, "Clock %s have not set parent idx\n", clknode->name); rv = ENXIO; continue; } if (clknode->parents[clknode->parent_idx] == NULL) { device_printf(clkdom->dev, "Clock %s have unknown parent(idx %d): %s\n", clknode->name, clknode->parent_idx, clknode->parent_names[clknode->parent_idx]); rv = ENXIO; continue; } clknode_adjust_parent(clknode, clknode->parent_idx); } CLK_TOPO_UNLOCK(); return (rv); } /* Dump clock domain. */ void clkdom_dump(struct clkdom * clkdom) { struct clknode *clknode; int rv; uint64_t freq; CLK_TOPO_SLOCK(); TAILQ_FOREACH(clknode, &clkdom->clknode_list, clkdom_link) { rv = clknode_get_freq(clknode, &freq); printf("Clock: %s, parent: %s(%d), freq: %ju\n", clknode->name, clknode->parent == NULL ? "(NULL)" : clknode->parent->name, clknode->parent_idx, (uintmax_t)((rv == 0) ? freq: rv)); } CLK_TOPO_UNLOCK(); } /* * Create and initialize clock object, but do not register it. */ struct clknode * clknode_create(struct clkdom * clkdom, clknode_class_t clknode_class, const struct clknode_init_def *def) { struct clknode *clknode; + struct sysctl_oid *clknode_oid; KASSERT(def->name != NULL, ("clock name is NULL")); KASSERT(def->name[0] != '\0', ("clock name is empty")); #ifdef INVARIANTS CLK_TOPO_SLOCK(); if (clknode_find_by_name(def->name) != NULL) panic("Duplicated clock registration: %s\n", def->name); CLK_TOPO_UNLOCK(); #endif /* Create object and initialize it. */ clknode = malloc(sizeof(struct clknode), M_CLOCK, M_WAITOK | M_ZERO); kobj_init((kobj_t)clknode, (kobj_class_t)clknode_class); sx_init(&clknode->lock, "Clocknode lock"); /* Allocate softc if required. */ if (clknode_class->size > 0) { clknode->softc = malloc(clknode_class->size, M_CLOCK, M_WAITOK | M_ZERO); } /* Prepare array for ptrs to parent clocks. */ clknode->parents = malloc(sizeof(struct clknode *) * def->parent_cnt, M_CLOCK, M_WAITOK | M_ZERO); /* Copy all strings unless they're flagged as static. */ if (def->flags & CLK_NODE_STATIC_STRINGS) { clknode->name = def->name; clknode->parent_names = def->parent_names; } else { clknode->name = strdup(def->name, M_CLOCK); clknode->parent_names = strdup_list(def->parent_names, def->parent_cnt); } /* Rest of init. */ clknode->id = def->id; clknode->clkdom = clkdom; clknode->flags = def->flags; clknode->parent_cnt = def->parent_cnt; clknode->parent = NULL; clknode->parent_idx = CLKNODE_IDX_NONE; TAILQ_INIT(&clknode->children); + sysctl_ctx_init(&clknode->sysctl_ctx); + clknode_oid = SYSCTL_ADD_NODE(&clknode->sysctl_ctx, + SYSCTL_STATIC_CHILDREN(_clock), + OID_AUTO, clknode->name, + CTLFLAG_RD, 0, "A clock node"); + + SYSCTL_ADD_U64(&clknode->sysctl_ctx, + SYSCTL_CHILDREN(clknode_oid), + OID_AUTO, "frequency", + CTLFLAG_RD, &clknode->freq, 0, "The clock frequency"); + SYSCTL_ADD_PROC(&clknode->sysctl_ctx, + SYSCTL_CHILDREN(clknode_oid), + OID_AUTO, "parent", + CTLTYPE_STRING | CTLFLAG_RD, + clknode, CLKNODE_SYSCTL_PARENT, clknode_sysctl, + "A", + "The clock parent"); + SYSCTL_ADD_PROC(&clknode->sysctl_ctx, + SYSCTL_CHILDREN(clknode_oid), + OID_AUTO, "parents", + CTLTYPE_STRING | CTLFLAG_RD, + clknode, CLKNODE_SYSCTL_PARENTS_LIST, clknode_sysctl, + "A", + "The clock parents list"); + SYSCTL_ADD_PROC(&clknode->sysctl_ctx, + SYSCTL_CHILDREN(clknode_oid), + OID_AUTO, "childrens", + CTLTYPE_STRING | CTLFLAG_RD, + clknode, CLKNODE_SYSCTL_CHILDREN_LIST, clknode_sysctl, + "A", + "The clock childrens list"); + SYSCTL_ADD_INT(&clknode->sysctl_ctx, + SYSCTL_CHILDREN(clknode_oid), + OID_AUTO, "enable_cnt", + CTLFLAG_RD, &clknode->enable_cnt, 0, "The clock enable counter"); + return (clknode); } /* * Register clock object into clock domain hierarchy. */ struct clknode * clknode_register(struct clkdom * clkdom, struct clknode *clknode) { int rv; rv = CLKNODE_INIT(clknode, clknode_get_device(clknode)); if (rv != 0) { printf(" CLKNODE_INIT failed: %d\n", rv); return (NULL); } TAILQ_INSERT_TAIL(&clkdom->clknode_list, clknode, clkdom_link); return (clknode); } /* * Clock providers interface. */ /* * Reparent clock node. */ static void clknode_adjust_parent(struct clknode *clknode, int idx) { CLK_TOPO_XASSERT(); if (clknode->parent_cnt == 0) return; if ((idx == CLKNODE_IDX_NONE) || (idx >= clknode->parent_cnt)) panic("Invalid clock parent index\n"); if (clknode->parents[idx] == NULL) panic("%s: Attempt to set invalid parent %d for clock %s", __func__, idx, clknode->name); /* Remove me from old children list. */ if (clknode->parent != NULL) { TAILQ_REMOVE(&clknode->parent->children, clknode, sibling_link); } /* Insert into children list of new parent. */ clknode->parent_idx = idx; clknode->parent = clknode->parents[idx]; TAILQ_INSERT_TAIL(&clknode->parent->children, clknode, sibling_link); } /* * Set parent index - init function. */ void clknode_init_parent_idx(struct clknode *clknode, int idx) { if (clknode->parent_cnt == 0) { clknode->parent_idx = CLKNODE_IDX_NONE; clknode->parent = NULL; return; } if ((idx == CLKNODE_IDX_NONE) || (idx >= clknode->parent_cnt) || (clknode->parent_names[idx] == NULL)) panic("%s: Invalid clock parent index: %d\n", __func__, idx); clknode->parent_idx = idx; } int clknode_set_parent_by_idx(struct clknode *clknode, int idx) { int rv; uint64_t freq; int oldidx; /* We have exclusive topology lock, node lock is not needed. */ CLK_TOPO_XASSERT(); if (clknode->parent_cnt == 0) return (0); if (clknode->parent_idx == idx) return (0); oldidx = clknode->parent_idx; clknode_adjust_parent(clknode, idx); rv = CLKNODE_SET_MUX(clknode, idx); if (rv != 0) { clknode_adjust_parent(clknode, oldidx); return (rv); } rv = clknode_get_freq(clknode->parent, &freq); if (rv != 0) return (rv); rv = clknode_refresh_cache(clknode, freq); return (rv); } int clknode_set_parent_by_name(struct clknode *clknode, const char *name) { int rv; uint64_t freq; int oldidx, idx; /* We have exclusive topology lock, node lock is not needed. */ CLK_TOPO_XASSERT(); if (clknode->parent_cnt == 0) return (0); /* * If this node doesnt have mux, then passthrough request to parent. * This feature is used in clock domain initialization and allows us to * set clock source and target frequency on the tail node of the clock * chain. */ if (clknode->parent_cnt == 1) { rv = clknode_set_parent_by_name(clknode->parent, name); return (rv); } for (idx = 0; idx < clknode->parent_cnt; idx++) { if (clknode->parent_names[idx] == NULL) continue; if (strcmp(clknode->parent_names[idx], name) == 0) break; } if (idx >= clknode->parent_cnt) { return (ENXIO); } if (clknode->parent_idx == idx) return (0); oldidx = clknode->parent_idx; clknode_adjust_parent(clknode, idx); rv = CLKNODE_SET_MUX(clknode, idx); if (rv != 0) { clknode_adjust_parent(clknode, oldidx); CLKNODE_UNLOCK(clknode); return (rv); } rv = clknode_get_freq(clknode->parent, &freq); if (rv != 0) return (rv); rv = clknode_refresh_cache(clknode, freq); return (rv); } struct clknode * clknode_get_parent(struct clknode *clknode) { return (clknode->parent); } const char * clknode_get_name(struct clknode *clknode) { return (clknode->name); } const char ** clknode_get_parent_names(struct clknode *clknode) { return (clknode->parent_names); } int clknode_get_parents_num(struct clknode *clknode) { return (clknode->parent_cnt); } int clknode_get_parent_idx(struct clknode *clknode) { return (clknode->parent_idx); } int clknode_get_flags(struct clknode *clknode) { return (clknode->flags); } void * clknode_get_softc(struct clknode *clknode) { return (clknode->softc); } device_t clknode_get_device(struct clknode *clknode) { return (clknode->clkdom->dev); } #ifdef FDT void clkdom_set_ofw_mapper(struct clkdom * clkdom, clknode_ofw_mapper_func *map) { clkdom->ofw_mapper = map; } #endif /* * Real consumers executive */ int clknode_get_freq(struct clknode *clknode, uint64_t *freq) { int rv; CLK_TOPO_ASSERT(); /* Use cached value, if it exists. */ *freq = clknode->freq; if (*freq != 0) return (0); /* Get frequency from parent, if the clock has a parent. */ if (clknode->parent_cnt > 0) { rv = clknode_get_freq(clknode->parent, freq); if (rv != 0) { return (rv); } } /* And recalculate my output frequency. */ CLKNODE_XLOCK(clknode); rv = CLKNODE_RECALC_FREQ(clknode, freq); if (rv != 0) { CLKNODE_UNLOCK(clknode); printf("Cannot get frequency for clk: %s, error: %d\n", clknode->name, rv); return (rv); } /* Save new frequency to cache. */ clknode->freq = *freq; CLKNODE_UNLOCK(clknode); return (0); } int clknode_set_freq(struct clknode *clknode, uint64_t freq, int flags, int enablecnt) { int rv, done; uint64_t parent_freq; /* We have exclusive topology lock, node lock is not needed. */ CLK_TOPO_XASSERT(); /* Check for no change */ if (clknode->freq == freq) return (0); parent_freq = 0; /* * We can set frequency only if * clock is disabled * OR * clock is glitch free and is enabled by calling consumer only */ if ((flags & CLK_SET_DRYRUN) == 0 && clknode->enable_cnt > 1 && clknode->enable_cnt > enablecnt && (clknode->flags & CLK_NODE_GLITCH_FREE) == 0) { return (EBUSY); } /* Get frequency from parent, if the clock has a parent. */ if (clknode->parent_cnt > 0) { rv = clknode_get_freq(clknode->parent, &parent_freq); if (rv != 0) { return (rv); } } /* Set frequency for this clock. */ rv = CLKNODE_SET_FREQ(clknode, parent_freq, &freq, flags, &done); if (rv != 0) { printf("Cannot set frequency for clk: %s, error: %d\n", clknode->name, rv); if ((flags & CLK_SET_DRYRUN) == 0) clknode_refresh_cache(clknode, parent_freq); return (rv); } if (done) { /* Success - invalidate frequency cache for all children. */ if ((flags & CLK_SET_DRYRUN) == 0) { clknode->freq = freq; clknode_refresh_cache(clknode, parent_freq); } } else if (clknode->parent != NULL) { /* Nothing changed, pass request to parent. */ rv = clknode_set_freq(clknode->parent, freq, flags, enablecnt); } else { /* End of chain without action. */ printf("Cannot set frequency for clk: %s, end of chain\n", clknode->name); rv = ENXIO; } return (rv); } int clknode_enable(struct clknode *clknode) { int rv; CLK_TOPO_ASSERT(); /* Enable clock for each node in chain, starting from source. */ if (clknode->parent_cnt > 0) { rv = clknode_enable(clknode->parent); if (rv != 0) { return (rv); } } /* Handle this node */ CLKNODE_XLOCK(clknode); if (clknode->enable_cnt == 0) { rv = CLKNODE_SET_GATE(clknode, 1); if (rv != 0) { CLKNODE_UNLOCK(clknode); return (rv); } } clknode->enable_cnt++; CLKNODE_UNLOCK(clknode); return (0); } int clknode_disable(struct clknode *clknode) { int rv; CLK_TOPO_ASSERT(); rv = 0; CLKNODE_XLOCK(clknode); /* Disable clock for each node in chain, starting from consumer. */ if ((clknode->enable_cnt == 1) && ((clknode->flags & CLK_NODE_CANNOT_STOP) == 0)) { rv = CLKNODE_SET_GATE(clknode, 0); if (rv != 0) { CLKNODE_UNLOCK(clknode); return (rv); } } clknode->enable_cnt--; CLKNODE_UNLOCK(clknode); if (clknode->parent_cnt > 0) { rv = clknode_disable(clknode->parent); } return (rv); } int clknode_stop(struct clknode *clknode, int depth) { int rv; CLK_TOPO_ASSERT(); rv = 0; CLKNODE_XLOCK(clknode); /* The first node cannot be enabled. */ if ((clknode->enable_cnt != 0) && (depth == 0)) { CLKNODE_UNLOCK(clknode); return (EBUSY); } /* Stop clock for each node in chain, starting from consumer. */ if ((clknode->enable_cnt == 0) && ((clknode->flags & CLK_NODE_CANNOT_STOP) == 0)) { rv = CLKNODE_SET_GATE(clknode, 0); if (rv != 0) { CLKNODE_UNLOCK(clknode); return (rv); } } CLKNODE_UNLOCK(clknode); if (clknode->parent_cnt > 0) rv = clknode_stop(clknode->parent, depth + 1); return (rv); } /* -------------------------------------------------------------------------- * * Clock consumers interface. * */ /* Helper function for clk_get*() */ static clk_t clk_create(struct clknode *clknode, device_t dev) { struct clk *clk; CLK_TOPO_ASSERT(); clk = malloc(sizeof(struct clk), M_CLOCK, M_WAITOK); clk->dev = dev; clk->clknode = clknode; clk->enable_cnt = 0; clknode->ref_cnt++; return (clk); } int clk_get_freq(clk_t clk, uint64_t *freq) { int rv; struct clknode *clknode; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); CLK_TOPO_SLOCK(); rv = clknode_get_freq(clknode, freq); CLK_TOPO_UNLOCK(); return (rv); } int clk_set_freq(clk_t clk, uint64_t freq, int flags) { int rv; struct clknode *clknode; flags &= CLK_SET_USER_MASK; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); CLK_TOPO_XLOCK(); rv = clknode_set_freq(clknode, freq, flags, clk->enable_cnt); CLK_TOPO_UNLOCK(); return (rv); } int clk_test_freq(clk_t clk, uint64_t freq, int flags) { int rv; struct clknode *clknode; flags &= CLK_SET_USER_MASK; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); CLK_TOPO_XLOCK(); rv = clknode_set_freq(clknode, freq, flags | CLK_SET_DRYRUN, 0); CLK_TOPO_UNLOCK(); return (rv); } int clk_get_parent(clk_t clk, clk_t *parent) { struct clknode *clknode; struct clknode *parentnode; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); CLK_TOPO_SLOCK(); parentnode = clknode_get_parent(clknode); if (parentnode == NULL) { CLK_TOPO_UNLOCK(); return (ENODEV); } *parent = clk_create(parentnode, clk->dev); CLK_TOPO_UNLOCK(); return (0); } int clk_set_parent_by_clk(clk_t clk, clk_t parent) { int rv; struct clknode *clknode; struct clknode *parentnode; clknode = clk->clknode; parentnode = parent->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); KASSERT(parentnode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); CLK_TOPO_XLOCK(); rv = clknode_set_parent_by_name(clknode, parentnode->name); CLK_TOPO_UNLOCK(); return (rv); } int clk_enable(clk_t clk) { int rv; struct clknode *clknode; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); CLK_TOPO_SLOCK(); rv = clknode_enable(clknode); if (rv == 0) clk->enable_cnt++; CLK_TOPO_UNLOCK(); return (rv); } int clk_disable(clk_t clk) { int rv; struct clknode *clknode; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); KASSERT(clk->enable_cnt > 0, ("Attempt to disable already disabled clock: %s\n", clknode->name)); CLK_TOPO_SLOCK(); rv = clknode_disable(clknode); if (rv == 0) clk->enable_cnt--; CLK_TOPO_UNLOCK(); return (rv); } int clk_stop(clk_t clk) { int rv; struct clknode *clknode; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); KASSERT(clk->enable_cnt == 0, ("Attempt to stop already enabled clock: %s\n", clknode->name)); CLK_TOPO_SLOCK(); rv = clknode_stop(clknode, 0); CLK_TOPO_UNLOCK(); return (rv); } int clk_release(clk_t clk) { struct clknode *clknode; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); CLK_TOPO_SLOCK(); while (clk->enable_cnt > 0) { clknode_disable(clknode); clk->enable_cnt--; } CLKNODE_XLOCK(clknode); clknode->ref_cnt--; CLKNODE_UNLOCK(clknode); CLK_TOPO_UNLOCK(); free(clk, M_CLOCK); return (0); } const char * clk_get_name(clk_t clk) { const char *name; struct clknode *clknode; clknode = clk->clknode; KASSERT(clknode->ref_cnt > 0, ("Attempt to access unreferenced clock: %s\n", clknode->name)); name = clknode_get_name(clknode); return (name); } int clk_get_by_name(device_t dev, const char *name, clk_t *clk) { struct clknode *clknode; CLK_TOPO_SLOCK(); clknode = clknode_find_by_name(name); if (clknode == NULL) { CLK_TOPO_UNLOCK(); return (ENODEV); } *clk = clk_create(clknode, dev); CLK_TOPO_UNLOCK(); return (0); } int clk_get_by_id(device_t dev, struct clkdom *clkdom, intptr_t id, clk_t *clk) { struct clknode *clknode; CLK_TOPO_SLOCK(); clknode = clknode_find_by_id(clkdom, id); if (clknode == NULL) { CLK_TOPO_UNLOCK(); return (ENODEV); } *clk = clk_create(clknode, dev); CLK_TOPO_UNLOCK(); return (0); } #ifdef FDT int clk_set_assigned(device_t dev, phandle_t node) { clk_t clk, clk_parent; int error, nclocks, i; error = ofw_bus_parse_xref_list_get_length(node, "assigned-clock-parents", "#clock-cells", &nclocks); if (error != 0) { if (error != ENOENT) device_printf(dev, "cannot parse assigned-clock-parents property\n"); return (error); } for (i = 0; i < nclocks; i++) { error = clk_get_by_ofw_index_prop(dev, 0, "assigned-clock-parents", i, &clk_parent); if (error != 0) { device_printf(dev, "cannot get parent %d\n", i); return (error); } error = clk_get_by_ofw_index_prop(dev, 0, "assigned-clocks", i, &clk); if (error != 0) { device_printf(dev, "cannot get assigned clock %d\n", i); clk_release(clk_parent); return (error); } error = clk_set_parent_by_clk(clk, clk_parent); clk_release(clk_parent); clk_release(clk); if (error != 0) return (error); } return (0); } int clk_get_by_ofw_index_prop(device_t dev, phandle_t cnode, const char *prop, int idx, clk_t *clk) { phandle_t parent, *cells; device_t clockdev; int ncells, rv; struct clkdom *clkdom; struct clknode *clknode; *clk = NULL; if (cnode <= 0) cnode = ofw_bus_get_node(dev); if (cnode <= 0) { device_printf(dev, "%s called on not ofw based device\n", __func__); return (ENXIO); } rv = ofw_bus_parse_xref_list_alloc(cnode, prop, "#clock-cells", idx, &parent, &ncells, &cells); if (rv != 0) { return (rv); } clockdev = OF_device_from_xref(parent); if (clockdev == NULL) { rv = ENODEV; goto done; } CLK_TOPO_SLOCK(); clkdom = clkdom_get_by_dev(clockdev); if (clkdom == NULL){ CLK_TOPO_UNLOCK(); rv = ENXIO; goto done; } rv = clkdom->ofw_mapper(clkdom, ncells, cells, &clknode); if (rv == 0) { *clk = clk_create(clknode, dev); } CLK_TOPO_UNLOCK(); done: if (cells != NULL) OF_prop_free(cells); return (rv); } int clk_get_by_ofw_index(device_t dev, phandle_t cnode, int idx, clk_t *clk) { return (clk_get_by_ofw_index_prop(dev, cnode, "clocks", idx, clk)); } int clk_get_by_ofw_name(device_t dev, phandle_t cnode, const char *name, clk_t *clk) { int rv, idx; if (cnode <= 0) cnode = ofw_bus_get_node(dev); if (cnode <= 0) { device_printf(dev, "%s called on not ofw based device\n", __func__); return (ENXIO); } rv = ofw_bus_find_string_index(cnode, "clock-names", name, &idx); if (rv != 0) return (rv); return (clk_get_by_ofw_index(dev, cnode, idx, clk)); } /* -------------------------------------------------------------------------- * * Support functions for parsing various clock related OFW things. */ /* * Get "clock-output-names" and (optional) "clock-indices" lists. * Both lists are alocated using M_OFWPROP specifier. * * Returns number of items or 0. */ int clk_parse_ofw_out_names(device_t dev, phandle_t node, const char ***out_names, uint32_t **indices) { int name_items, rv; *out_names = NULL; *indices = NULL; if (!OF_hasprop(node, "clock-output-names")) return (0); rv = ofw_bus_string_list_to_array(node, "clock-output-names", out_names); if (rv <= 0) return (0); name_items = rv; if (!OF_hasprop(node, "clock-indices")) return (name_items); rv = OF_getencprop_alloc(node, "clock-indices", sizeof (uint32_t), (void **)indices); if (rv != name_items) { device_printf(dev, " Size of 'clock-output-names' and " "'clock-indices' differs\n"); OF_prop_free(*out_names); OF_prop_free(*indices); return (0); } return (name_items); } /* * Get output clock name for single output clock node. */ int clk_parse_ofw_clk_name(device_t dev, phandle_t node, const char **name) { const char **out_names; const char *tmp_name; int rv; *name = NULL; if (!OF_hasprop(node, "clock-output-names")) { tmp_name = ofw_bus_get_name(dev); if (tmp_name == NULL) return (ENXIO); *name = strdup(tmp_name, M_OFWPROP); return (0); } rv = ofw_bus_string_list_to_array(node, "clock-output-names", &out_names); if (rv != 1) { OF_prop_free(out_names); device_printf(dev, "Malformed 'clock-output-names' property\n"); return (ENXIO); } *name = strdup(out_names[0], M_OFWPROP); OF_prop_free(out_names); return (0); } #endif + +static int +clkdom_sysctl(SYSCTL_HANDLER_ARGS) +{ + struct clkdom *clkdom = arg1; + struct clknode *clknode; + struct sbuf *sb; + int ret; + + sb = sbuf_new_for_sysctl(NULL, NULL, 4096, req); + if (sb == NULL) + return (ENOMEM); + + CLK_TOPO_SLOCK(); + TAILQ_FOREACH(clknode, &clkdom->clknode_list, clkdom_link) { + sbuf_printf(sb, "%s ", clknode->name); + } + CLK_TOPO_UNLOCK(); + + ret = sbuf_finish(sb); + sbuf_delete(sb); + return (ret); +} + +static int +clknode_sysctl(SYSCTL_HANDLER_ARGS) +{ + struct clknode *clknode, *children; + enum clknode_sysctl_type type = arg2; + struct sbuf *sb; + const char **parent_names; + int ret, i; + + clknode = arg1; + sb = sbuf_new_for_sysctl(NULL, NULL, 512, req); + if (sb == NULL) + return (ENOMEM); + + CLK_TOPO_SLOCK(); + switch (type) { + case CLKNODE_SYSCTL_PARENT: + if (clknode->parent) + sbuf_printf(sb, "%s", clknode->parent->name); + break; + case CLKNODE_SYSCTL_PARENTS_LIST: + parent_names = clknode_get_parent_names(clknode); + for (i = 0; i < clknode->parent_cnt; i++) + sbuf_printf(sb, "%s ", parent_names[i]); + break; + case CLKNODE_SYSCTL_CHILDREN_LIST: + TAILQ_FOREACH(children, &(clknode->children), sibling_link) { + sbuf_printf(sb, "%s ", children->name); + } + break; + } + CLK_TOPO_UNLOCK(); + + ret = sbuf_finish(sb); + sbuf_delete(sb); + return (ret); +} Index: head/sys/kern/kern_mib.c =================================================================== --- head/sys/kern/kern_mib.c (revision 314698) +++ head/sys/kern/kern_mib.c (revision 314699) @@ -1,597 +1,602 @@ /*- * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Mike Karels at Berkeley Software Design, Inc. * * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD * project, to make these variables more userfriendly. * * 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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. * * @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94 */ #include __FBSDID("$FreeBSD$"); #include "opt_compat.h" #include "opt_posix.h" #include "opt_config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include SYSCTL_ROOT_NODE(0, sysctl, CTLFLAG_RW, 0, "Sysctl internal magic"); SYSCTL_ROOT_NODE(CTL_KERN, kern, CTLFLAG_RW|CTLFLAG_CAPRD, 0, "High kernel, proc, limits &c"); SYSCTL_ROOT_NODE(CTL_VM, vm, CTLFLAG_RW, 0, "Virtual memory"); SYSCTL_ROOT_NODE(CTL_VFS, vfs, CTLFLAG_RW, 0, "File system"); SYSCTL_ROOT_NODE(CTL_NET, net, CTLFLAG_RW, 0, "Network, (see socket.h)"); SYSCTL_ROOT_NODE(CTL_DEBUG, debug, CTLFLAG_RW, 0, "Debugging"); SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0, "Sizeof various things"); SYSCTL_ROOT_NODE(CTL_HW, hw, CTLFLAG_RW, 0, "hardware"); SYSCTL_ROOT_NODE(CTL_MACHDEP, machdep, CTLFLAG_RW, 0, "machine dependent"); SYSCTL_ROOT_NODE(CTL_USER, user, CTLFLAG_RW, 0, "user-level"); SYSCTL_ROOT_NODE(CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0, "p1003_1b, (see p1003_1b.h)"); SYSCTL_ROOT_NODE(OID_AUTO, compat, CTLFLAG_RW, 0, "Compatibility code"); SYSCTL_ROOT_NODE(OID_AUTO, security, CTLFLAG_RW, 0, "Security"); #ifdef REGRESSION SYSCTL_ROOT_NODE(OID_AUTO, regression, CTLFLAG_RW, 0, "Regression test MIB"); #endif +#ifdef EXT_RESOURCES +SYSCTL_ROOT_NODE(OID_AUTO, clock, CTLFLAG_RW, 0, + "Clocks"); +#endif + SYSCTL_STRING(_kern, OID_AUTO, ident, CTLFLAG_RD|CTLFLAG_MPSAFE, kern_ident, 0, "Kernel identifier"); SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, BSD, "Operating system revision"); SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD|CTLFLAG_MPSAFE, version, 0, "Kernel version"); SYSCTL_STRING(_kern, OID_AUTO, compiler_version, CTLFLAG_RD|CTLFLAG_MPSAFE, compiler_version, 0, "Version of compiler used to compile kernel"); SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD|CTLFLAG_MPSAFE| CTLFLAG_CAPRD, ostype, 0, "Operating system type"); SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RDTUN | CTLFLAG_NOFETCH, &maxproc, 0, "Maximum number of processes"); SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW, &maxprocperuid, 0, "Maximum processes allowed per userid"); SYSCTL_INT(_kern, OID_AUTO, maxusers, CTLFLAG_RDTUN | CTLFLAG_NOFETCH, &maxusers, 0, "Hint for kernel tuning"); SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, ARG_MAX, "Maximum bytes of argument to execve(2)"); SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, _POSIX_VERSION, "Version of POSIX attempting to comply to"); SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RDTUN | CTLFLAG_NOFETCH | CTLFLAG_CAPRD, &ngroups_max, 0, "Maximum number of supplemental groups a user can belong to"); SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, "Whether job control is available"); #ifdef _POSIX_SAVED_IDS SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, "Whether saved set-group/user ID is available"); #else SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 0, "Whether saved set-group/user ID is available"); #endif char kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */ SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, CTLFLAG_RW | CTLFLAG_MPSAFE, kernelname, sizeof kernelname, "Name of kernel file booted"); SYSCTL_INT(_kern, KERN_MAXPHYS, maxphys, CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, MAXPHYS, "Maximum block I/O access size"); SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD|CTLFLAG_CAPRD, &mp_ncpus, 0, "Number of active CPUs"); SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, BYTE_ORDER, "System byte order"); SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD|CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, PAGE_SIZE, "System memory page size"); static int sysctl_kern_arnd(SYSCTL_HANDLER_ARGS) { char buf[256]; size_t len; /*- * This is one of the very few legitimate uses of read_random(9). * Use of arc4random(9) is not recommended as that will ignore * an unsafe (i.e. unseeded) random(4). * * If random(4) is not seeded, then this returns 0, so the * sysctl will return a zero-length buffer. */ len = read_random(buf, MIN(req->oldlen, sizeof(buf))); return (SYSCTL_OUT(req, buf, len)); } SYSCTL_PROC(_kern, KERN_ARND, arandom, CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_CAPRD, NULL, 0, sysctl_kern_arnd, "", "arc4rand"); static int sysctl_hw_physmem(SYSCTL_HANDLER_ARGS) { u_long val; val = ctob(physmem); return (sysctl_handle_long(oidp, &val, 0, req)); } SYSCTL_PROC(_hw, HW_PHYSMEM, physmem, CTLTYPE_ULONG | CTLFLAG_RD, 0, 0, sysctl_hw_physmem, "LU", ""); static int sysctl_hw_realmem(SYSCTL_HANDLER_ARGS) { u_long val; val = ctob(realmem); return (sysctl_handle_long(oidp, &val, 0, req)); } SYSCTL_PROC(_hw, HW_REALMEM, realmem, CTLTYPE_ULONG | CTLFLAG_RD, 0, 0, sysctl_hw_realmem, "LU", ""); static int sysctl_hw_usermem(SYSCTL_HANDLER_ARGS) { u_long val; val = ctob(physmem - vm_cnt.v_wire_count); return (sysctl_handle_long(oidp, &val, 0, req)); } SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_ULONG | CTLFLAG_RD, 0, 0, sysctl_hw_usermem, "LU", ""); SYSCTL_LONG(_hw, OID_AUTO, availpages, CTLFLAG_RD, &physmem, 0, ""); u_long pagesizes[MAXPAGESIZES] = { PAGE_SIZE }; static int sysctl_hw_pagesizes(SYSCTL_HANDLER_ARGS) { int error; #ifdef SCTL_MASK32 int i; uint32_t pagesizes32[MAXPAGESIZES]; if (req->flags & SCTL_MASK32) { /* * Recreate the "pagesizes" array with 32-bit elements. Truncate * any page size greater than UINT32_MAX to zero. */ for (i = 0; i < MAXPAGESIZES; i++) pagesizes32[i] = (uint32_t)pagesizes[i]; error = SYSCTL_OUT(req, pagesizes32, sizeof(pagesizes32)); } else #endif error = SYSCTL_OUT(req, pagesizes, sizeof(pagesizes)); return (error); } SYSCTL_PROC(_hw, OID_AUTO, pagesizes, CTLTYPE_ULONG | CTLFLAG_RD, NULL, 0, sysctl_hw_pagesizes, "LU", "Supported page sizes"); #ifdef SCTL_MASK32 int adaptive_machine_arch = 1; SYSCTL_INT(_debug, OID_AUTO, adaptive_machine_arch, CTLFLAG_RW, &adaptive_machine_arch, 1, "Adapt reported machine architecture to the ABI of the binary"); #endif static int sysctl_hw_machine_arch(SYSCTL_HANDLER_ARGS) { int error; static const char machine_arch[] = MACHINE_ARCH; #ifdef SCTL_MASK32 static const char machine_arch32[] = MACHINE_ARCH32; if ((req->flags & SCTL_MASK32) != 0 && adaptive_machine_arch) error = SYSCTL_OUT(req, machine_arch32, sizeof(machine_arch32)); else #endif error = SYSCTL_OUT(req, machine_arch, sizeof(machine_arch)); return (error); } SYSCTL_PROC(_hw, HW_MACHINE_ARCH, machine_arch, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0, sysctl_hw_machine_arch, "A", "System architecture"); SYSCTL_STRING(_kern, OID_AUTO, supported_archs, CTLFLAG_RD | CTLFLAG_MPSAFE, #ifdef COMPAT_FREEBSD32 MACHINE_ARCH " " MACHINE_ARCH32, 0, "Supported architectures for binaries"); #else MACHINE_ARCH, 0, "Supported architectures for binaries"); #endif static int sysctl_hostname(SYSCTL_HANDLER_ARGS) { struct prison *pr, *cpr; size_t pr_offset; char tmpname[MAXHOSTNAMELEN]; int descend, error, len; /* * This function can set: hostname domainname hostuuid. * Keep that in mind when comments say "hostname". */ pr_offset = (size_t)arg1; len = arg2; KASSERT(len <= sizeof(tmpname), ("length %d too long for %s", len, __func__)); pr = req->td->td_ucred->cr_prison; if (!(pr->pr_allow & PR_ALLOW_SET_HOSTNAME) && req->newptr) return (EPERM); /* * Make a local copy of hostname to get/set so we don't have to hold * the jail mutex during the sysctl copyin/copyout activities. */ mtx_lock(&pr->pr_mtx); bcopy((char *)pr + pr_offset, tmpname, len); mtx_unlock(&pr->pr_mtx); error = sysctl_handle_string(oidp, tmpname, len, req); if (req->newptr != NULL && error == 0) { /* * Copy the locally set hostname to all jails that share * this host info. */ sx_slock(&allprison_lock); while (!(pr->pr_flags & PR_HOST)) pr = pr->pr_parent; mtx_lock(&pr->pr_mtx); bcopy(tmpname, (char *)pr + pr_offset, len); FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend) if (cpr->pr_flags & PR_HOST) descend = 0; else bcopy(tmpname, (char *)cpr + pr_offset, len); mtx_unlock(&pr->pr_mtx); sx_sunlock(&allprison_lock); } return (error); } SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE, (void *)(offsetof(struct prison, pr_hostname)), MAXHOSTNAMELEN, sysctl_hostname, "A", "Hostname"); SYSCTL_PROC(_kern, KERN_NISDOMAINNAME, domainname, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE, (void *)(offsetof(struct prison, pr_domainname)), MAXHOSTNAMELEN, sysctl_hostname, "A", "Name of the current YP/NIS domain"); SYSCTL_PROC(_kern, KERN_HOSTUUID, hostuuid, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_CAPRD | CTLFLAG_MPSAFE, (void *)(offsetof(struct prison, pr_hostuuid)), HOSTUUIDLEN, sysctl_hostname, "A", "Host UUID"); static int regression_securelevel_nonmonotonic = 0; #ifdef REGRESSION SYSCTL_INT(_regression, OID_AUTO, securelevel_nonmonotonic, CTLFLAG_RW, ®ression_securelevel_nonmonotonic, 0, "securelevel may be lowered"); #endif static int sysctl_kern_securelvl(SYSCTL_HANDLER_ARGS) { struct prison *pr, *cpr; int descend, error, level; pr = req->td->td_ucred->cr_prison; /* * Reading the securelevel is easy, since the current jail's level * is known to be at least as secure as any higher levels. Perform * a lockless read since the securelevel is an integer. */ level = pr->pr_securelevel; error = sysctl_handle_int(oidp, &level, 0, req); if (error || !req->newptr) return (error); /* Permit update only if the new securelevel exceeds the old. */ sx_slock(&allprison_lock); mtx_lock(&pr->pr_mtx); if (!regression_securelevel_nonmonotonic && level < pr->pr_securelevel) { mtx_unlock(&pr->pr_mtx); sx_sunlock(&allprison_lock); return (EPERM); } pr->pr_securelevel = level; /* * Set all child jails to be at least this level, but do not lower * them (even if regression_securelevel_nonmonotonic). */ FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend) { if (cpr->pr_securelevel < level) cpr->pr_securelevel = level; } mtx_unlock(&pr->pr_mtx); sx_sunlock(&allprison_lock); return (error); } SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel, CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_PRISON, 0, 0, sysctl_kern_securelvl, "I", "Current secure level"); #ifdef INCLUDE_CONFIG_FILE /* Actual kernel configuration options. */ extern char kernconfstring[]; SYSCTL_STRING(_kern, OID_AUTO, conftxt, CTLFLAG_RD | CTLFLAG_MPSAFE, kernconfstring, 0, "Kernel configuration file"); #endif static int sysctl_hostid(SYSCTL_HANDLER_ARGS) { struct prison *pr, *cpr; u_long tmpid; int descend, error; /* * Like sysctl_hostname, except it operates on a u_long * instead of a string, and is used only for hostid. */ pr = req->td->td_ucred->cr_prison; if (!(pr->pr_allow & PR_ALLOW_SET_HOSTNAME) && req->newptr) return (EPERM); tmpid = pr->pr_hostid; error = sysctl_handle_long(oidp, &tmpid, 0, req); if (req->newptr != NULL && error == 0) { sx_slock(&allprison_lock); while (!(pr->pr_flags & PR_HOST)) pr = pr->pr_parent; mtx_lock(&pr->pr_mtx); pr->pr_hostid = tmpid; FOREACH_PRISON_DESCENDANT_LOCKED(pr, cpr, descend) if (cpr->pr_flags & PR_HOST) descend = 0; else cpr->pr_hostid = tmpid; mtx_unlock(&pr->pr_mtx); sx_sunlock(&allprison_lock); } return (error); } SYSCTL_PROC(_kern, KERN_HOSTID, hostid, CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_PRISON | CTLFLAG_MPSAFE | CTLFLAG_CAPRD, NULL, 0, sysctl_hostid, "LU", "Host ID"); /* * The osrelease string is copied from the global (osrelease in vers.c) into * prison0 by a sysinit and is inherited by child jails if not changed at jail * creation, so we always return the copy from the current prison data. */ static int sysctl_osrelease(SYSCTL_HANDLER_ARGS) { struct prison *pr; pr = req->td->td_ucred->cr_prison; return (SYSCTL_OUT(req, pr->pr_osrelease, strlen(pr->pr_osrelease) + 1)); } SYSCTL_PROC(_kern, KERN_OSRELEASE, osrelease, CTLTYPE_STRING | CTLFLAG_CAPRD | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0, sysctl_osrelease, "A", "Operating system release"); /* * The osreldate number is copied from the global (osreldate in vers.c) into * prison0 by a sysinit and is inherited by child jails if not changed at jail * creation, so we always return the value from the current prison data. */ static int sysctl_osreldate(SYSCTL_HANDLER_ARGS) { struct prison *pr; pr = req->td->td_ucred->cr_prison; return (SYSCTL_OUT(req, &pr->pr_osreldate, sizeof(pr->pr_osreldate))); } /* * NOTICE: The *userland* release date is available in * /usr/include/osreldate.h */ SYSCTL_PROC(_kern, KERN_OSRELDATE, osreldate, CTLTYPE_INT | CTLFLAG_CAPRD | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0, sysctl_osreldate, "I", "Kernel release date"); SYSCTL_NODE(_kern, OID_AUTO, features, CTLFLAG_RD, 0, "Kernel Features"); #ifdef COMPAT_FREEBSD4 FEATURE(compat_freebsd4, "Compatible with FreeBSD 4"); #endif #ifdef COMPAT_FREEBSD5 FEATURE(compat_freebsd5, "Compatible with FreeBSD 5"); #endif #ifdef COMPAT_FREEBSD6 FEATURE(compat_freebsd6, "Compatible with FreeBSD 6"); #endif #ifdef COMPAT_FREEBSD7 FEATURE(compat_freebsd7, "Compatible with FreeBSD 7"); #endif /* * This is really cheating. These actually live in the libc, something * which I'm not quite sure is a good idea anyway, but in order for * getnext and friends to actually work, we define dummies here. * * XXXRW: These probably should be CTLFLAG_CAPRD. */ SYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD, "", 0, "PATH that finds all the standard utilities"); SYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Max ibase/obase values in bc(1)"); SYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Max array size in bc(1)"); SYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Max scale value in bc(1)"); SYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Max string length in bc(1)"); SYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Maximum number of weights assigned to an LC_COLLATE locale entry"); SYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, ""); SYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Max length (bytes) of a text-processing utility's input line"); SYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Maximum number of repeats of a regexp permitted"); SYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "The version of POSIX 1003.2 with which the system attempts to comply"); SYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Whether C development supports the C bindings option"); SYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Whether system supports the C development utilities option"); SYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, ""); SYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Whether system supports FORTRAN development utilities"); SYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Whether system supports FORTRAN runtime utilities"); SYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Whether system supports creation of locales"); SYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Whether system supports software development utilities"); SYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Whether system supports the user portability utilities"); SYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Min Maximum number of streams a process may have open at one time"); SYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, 0, "Min Maximum number of types supported for timezone names"); #include SYSCTL_INT(_debug_sizeof, OID_AUTO, vnode, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(struct vnode), "sizeof(struct vnode)"); SYSCTL_INT(_debug_sizeof, OID_AUTO, proc, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(struct proc), "sizeof(struct proc)"); static int sysctl_kern_pid_max(SYSCTL_HANDLER_ARGS) { int error, pm; pm = pid_max; error = sysctl_handle_int(oidp, &pm, 0, req); if (error || !req->newptr) return (error); sx_xlock(&proctree_lock); sx_xlock(&allproc_lock); /* * Only permit the values less then PID_MAX. * As a safety measure, do not allow to limit the pid_max too much. */ if (pm < 300 || pm > PID_MAX) error = EINVAL; else pid_max = pm; sx_xunlock(&allproc_lock); sx_xunlock(&proctree_lock); return (error); } SYSCTL_PROC(_kern, OID_AUTO, pid_max, CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NOFETCH | CTLFLAG_MPSAFE, 0, 0, sysctl_kern_pid_max, "I", "Maximum allowed pid"); #include #include SYSCTL_INT(_debug_sizeof, OID_AUTO, bio, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(struct bio), "sizeof(struct bio)"); SYSCTL_INT(_debug_sizeof, OID_AUTO, buf, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(struct buf), "sizeof(struct buf)"); #include SYSCTL_INT(_debug_sizeof, OID_AUTO, kinfo_proc, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(struct kinfo_proc), "sizeof(struct kinfo_proc)"); /* Used by kernel debuggers. */ const int pcb_size = sizeof(struct pcb); SYSCTL_INT(_debug_sizeof, OID_AUTO, pcb, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, sizeof(struct pcb), "sizeof(struct pcb)"); /* XXX compatibility, remove for 6.0 */ #include #include SYSCTL_INT(_kern, OID_AUTO, fallback_elf_brand, CTLFLAG_RW, &__elfN(fallback_brand), sizeof(__elfN(fallback_brand)), "compatibility for kern.fallback_elf_brand"); Index: head/sys/sys/sysctl.h =================================================================== --- head/sys/sys/sysctl.h (revision 314698) +++ head/sys/sys/sysctl.h (revision 314699) @@ -1,1061 +1,1064 @@ /*- * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Mike Karels at Berkeley Software Design, Inc. * * 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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. * * @(#)sysctl.h 8.1 (Berkeley) 6/2/93 * $FreeBSD$ */ #ifndef _SYS_SYSCTL_H_ #define _SYS_SYSCTL_H_ #include struct thread; /* * Definitions for sysctl call. The sysctl call uses a hierarchical name * for objects that can be examined or modified. The name is expressed as * a sequence of integers. Like a file path name, the meaning of each * component depends on its place in the hierarchy. The top-level and kern * identifiers are defined here, and other identifiers are defined in the * respective subsystem header files. */ #define CTL_MAXNAME 24 /* largest number of components supported */ /* * Each subsystem defined by sysctl defines a list of variables * for that subsystem. Each name is either a node with further * levels defined below it, or it is a leaf of some particular * type given below. Each sysctl level defines a set of name/type * pairs to be used by sysctl(8) in manipulating the subsystem. */ struct ctlname { char *ctl_name; /* subsystem name */ int ctl_type; /* type of name */ }; #define CTLTYPE 0xf /* mask for the type */ #define CTLTYPE_NODE 1 /* name is a node */ #define CTLTYPE_INT 2 /* name describes an integer */ #define CTLTYPE_STRING 3 /* name describes a string */ #define CTLTYPE_S64 4 /* name describes a signed 64-bit number */ #define CTLTYPE_OPAQUE 5 /* name describes a structure */ #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */ #define CTLTYPE_UINT 6 /* name describes an unsigned integer */ #define CTLTYPE_LONG 7 /* name describes a long */ #define CTLTYPE_ULONG 8 /* name describes an unsigned long */ #define CTLTYPE_U64 9 /* name describes an unsigned 64-bit number */ #define CTLTYPE_U8 0xa /* name describes an unsigned 8-bit number */ #define CTLTYPE_U16 0xb /* name describes an unsigned 16-bit number */ #define CTLTYPE_S8 0xc /* name describes a signed 8-bit number */ #define CTLTYPE_S16 0xd /* name describes a signed 16-bit number */ #define CTLTYPE_S32 0xe /* name describes a signed 32-bit number */ #define CTLTYPE_U32 0xf /* name describes an unsigned 32-bit number */ #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */ #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */ #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR) #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */ #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */ #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */ #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */ #define CTLFLAG_SKIP 0x01000000 /* Skip this sysctl when listing */ #define CTLMASK_SECURE 0x00F00000 /* Secure level */ #define CTLFLAG_TUN 0x00080000 /* Default value is loaded from getenv() */ #define CTLFLAG_RDTUN (CTLFLAG_RD|CTLFLAG_TUN) #define CTLFLAG_RWTUN (CTLFLAG_RW|CTLFLAG_TUN) #define CTLFLAG_MPSAFE 0x00040000 /* Handler is MP safe */ #define CTLFLAG_VNET 0x00020000 /* Prisons with vnet can fiddle */ #define CTLFLAG_DYING 0x00010000 /* Oid is being removed */ #define CTLFLAG_CAPRD 0x00008000 /* Can be read in capability mode */ #define CTLFLAG_CAPWR 0x00004000 /* Can be written in capability mode */ #define CTLFLAG_STATS 0x00002000 /* Statistics, not a tuneable */ #define CTLFLAG_NOFETCH 0x00001000 /* Don't fetch tunable from getenv() */ #define CTLFLAG_CAPRW (CTLFLAG_CAPRD|CTLFLAG_CAPWR) /* * Secure level. Note that CTLFLAG_SECURE == CTLFLAG_SECURE1. * * Secure when the securelevel is raised to at least N. */ #define CTLSHIFT_SECURE 20 #define CTLFLAG_SECURE1 (CTLFLAG_SECURE | (0 << CTLSHIFT_SECURE)) #define CTLFLAG_SECURE2 (CTLFLAG_SECURE | (1 << CTLSHIFT_SECURE)) #define CTLFLAG_SECURE3 (CTLFLAG_SECURE | (2 << CTLSHIFT_SECURE)) /* * USE THIS instead of a hardwired number from the categories below * to get dynamically assigned sysctl entries using the linker-set * technology. This is the way nearly all new sysctl variables should * be implemented. * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, ""); */ #define OID_AUTO (-1) /* * The starting number for dynamically-assigned entries. WARNING! * ALL static sysctl entries should have numbers LESS than this! */ #define CTL_AUTO_START 0x100 #ifdef _KERNEL #include #ifdef KLD_MODULE /* XXX allow overspecification of type in external kernel modules */ #define SYSCTL_CT_ASSERT_MASK CTLTYPE #else #define SYSCTL_CT_ASSERT_MASK 0 #endif #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ intmax_t arg2, struct sysctl_req *req /* definitions for sysctl_req 'lock' member */ #define REQ_UNWIRED 1 #define REQ_WIRED 2 /* definitions for sysctl_req 'flags' member */ #if defined(__amd64__) || defined(__powerpc64__) ||\ (defined(__mips__) && defined(__mips_n64)) #define SCTL_MASK32 1 /* 32 bit emulation */ #endif /* * This describes the access space for a sysctl request. This is needed * so that we can use the interface from the kernel or from user-space. */ struct sysctl_req { struct thread *td; /* used for access checking */ int lock; /* wiring state */ void *oldptr; size_t oldlen; size_t oldidx; int (*oldfunc)(struct sysctl_req *, const void *, size_t); void *newptr; size_t newlen; size_t newidx; int (*newfunc)(struct sysctl_req *, void *, size_t); size_t validlen; int flags; }; SLIST_HEAD(sysctl_oid_list, sysctl_oid); /* * This describes one "oid" in the MIB tree. Potentially more nodes can * be hidden behind it, expanded by the handler. */ struct sysctl_oid { struct sysctl_oid_list oid_children; struct sysctl_oid_list *oid_parent; SLIST_ENTRY(sysctl_oid) oid_link; int oid_number; u_int oid_kind; void *oid_arg1; intmax_t oid_arg2; const char *oid_name; int (*oid_handler)(SYSCTL_HANDLER_ARGS); const char *oid_fmt; int oid_refcnt; u_int oid_running; const char *oid_descr; const char *oid_label; }; #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l) #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l) #define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1) int sysctl_handle_bool(SYSCTL_HANDLER_ARGS); int sysctl_handle_8(SYSCTL_HANDLER_ARGS); int sysctl_handle_16(SYSCTL_HANDLER_ARGS); int sysctl_handle_32(SYSCTL_HANDLER_ARGS); int sysctl_handle_64(SYSCTL_HANDLER_ARGS); int sysctl_handle_int(SYSCTL_HANDLER_ARGS); int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS); int sysctl_handle_long(SYSCTL_HANDLER_ARGS); int sysctl_handle_string(SYSCTL_HANDLER_ARGS); int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS); int sysctl_handle_counter_u64(SYSCTL_HANDLER_ARGS); int sysctl_handle_counter_u64_array(SYSCTL_HANDLER_ARGS); int sysctl_handle_uma_zone_max(SYSCTL_HANDLER_ARGS); int sysctl_handle_uma_zone_cur(SYSCTL_HANDLER_ARGS); int sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS); int sysctl_dpcpu_long(SYSCTL_HANDLER_ARGS); int sysctl_dpcpu_quad(SYSCTL_HANDLER_ARGS); /* * These functions are used to add/remove an oid from the mib. */ void sysctl_register_oid(struct sysctl_oid *oidp); void sysctl_unregister_oid(struct sysctl_oid *oidp); /* Declare a static oid to allow child oids to be added to it. */ #define SYSCTL_DECL(name) \ extern struct sysctl_oid sysctl__##name /* Hide these in macros. */ #define SYSCTL_CHILDREN(oid_ptr) (&(oid_ptr)->oid_children) #define SYSCTL_PARENT(oid_ptr) \ (((oid_ptr)->oid_parent != &sysctl__children) ? \ __containerof((oid_ptr)->oid_parent, struct sysctl_oid, \ oid_children) : (struct sysctl_oid *)NULL) #define SYSCTL_STATIC_CHILDREN(oid_name) (&sysctl__##oid_name.oid_children) /* === Structs and macros related to context handling. === */ /* All dynamically created sysctls can be tracked in a context list. */ struct sysctl_ctx_entry { struct sysctl_oid *entry; TAILQ_ENTRY(sysctl_ctx_entry) link; }; TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry); #define SYSCTL_NODE_CHILDREN(parent, name) \ sysctl__##parent##_##name.oid_children #ifndef NO_SYSCTL_DESCR #define __DESCR(d) d #else #define __DESCR(d) "" #endif /* This macro is only for internal use */ #define SYSCTL_OID_RAW(id, parent_child_head, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ struct sysctl_oid id = { \ .oid_parent = (parent_child_head), \ .oid_children = SLIST_HEAD_INITIALIZER(&id.oid_children), \ .oid_number = (nbr), \ .oid_kind = (kind), \ .oid_arg1 = (a1), \ .oid_arg2 = (a2), \ .oid_name = (name), \ .oid_handler = (handler), \ .oid_fmt = (fmt), \ .oid_descr = __DESCR(descr), \ .oid_label = (label), \ }; \ DATA_SET(sysctl_set, id) /* This constructs a static "raw" MIB oid. */ #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, \ handler, fmt, descr, NULL) #define SYSCTL_OID_WITH_LABEL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ static SYSCTL_OID_RAW(sysctl__##parent##_##name, \ SYSCTL_CHILDREN(&sysctl__##parent), \ nbr, #name, kind, a1, a2, handler, fmt, descr, label) /* This constructs a global "raw" MIB oid. */ #define SYSCTL_OID_GLOBAL(parent, nbr, name, kind, a1, a2, handler, fmt, descr, label) \ SYSCTL_OID_RAW(sysctl__##parent##_##name, \ SYSCTL_CHILDREN(&sysctl__##parent), \ nbr, #name, kind, a1, a2, handler, fmt, descr, label) #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \ sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, __DESCR(descr), NULL) /* This constructs a root node from which other nodes can hang. */ #define SYSCTL_ROOT_NODE(nbr, name, access, handler, descr) \ SYSCTL_OID_RAW(sysctl___##name, &sysctl__children, \ nbr, #name, CTLTYPE_NODE|(access), NULL, 0, \ handler, "N", descr, NULL); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) /* This constructs a node from which other oids can hang. */ #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \ SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, NULL) #define SYSCTL_NODE_WITH_LABEL(parent, nbr, name, access, handler, descr, label) \ SYSCTL_OID_GLOBAL(parent, nbr, name, CTLTYPE_NODE|(access), \ NULL, 0, handler, "N", descr, label); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE) #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \ SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, \ handler, descr, NULL) #define SYSCTL_ADD_NODE_WITH_LABEL(ctx, parent, nbr, name, access, handler, descr, label) \ ({ \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|(access), \ NULL, 0, handler, "N", __DESCR(descr), label); \ }) #define SYSCTL_ADD_ROOT_NODE(ctx, nbr, name, access, handler, descr) \ ({ \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_NODE); \ sysctl_add_oid(ctx, &sysctl__children, nbr, name, \ CTLTYPE_NODE|(access), \ NULL, 0, handler, "N", __DESCR(descr), NULL); \ }) /* Oid for a string. len can be 0 to indicate '\0' termination. */ #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \ SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|(access), \ arg, len, sysctl_handle_string, "A", descr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING) #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \ ({ \ char *__arg = (arg); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_STRING); \ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|(access), \ __arg, len, sysctl_handle_string, "A", __DESCR(descr), \ NULL); \ }) /* Oid for a bool. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_BOOL_PTR ((bool *)NULL) #define SYSCTL_BOOL(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_bool, "CU", descr); \ CTASSERT(((access) & CTLTYPE) == 0 && \ sizeof(bool) == sizeof(*(ptr))) #define SYSCTL_ADD_BOOL(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ bool *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_bool, "CU", __DESCR(descr), \ NULL); \ }) /* Oid for a signed 8-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_S8_PTR ((int8_t *)NULL) #define SYSCTL_S8(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_8, "C", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8) && \ sizeof(int8_t) == sizeof(*(ptr))) #define SYSCTL_ADD_S8(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ int8_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S8); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_S8 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_8, "C", __DESCR(descr), NULL); \ }) /* Oid for an unsigned 8-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_U8_PTR ((uint8_t *)NULL) #define SYSCTL_U8(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_8, "CU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8) && \ sizeof(uint8_t) == sizeof(*(ptr))) #define SYSCTL_ADD_U8(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ uint8_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U8); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U8 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_8, "CU", __DESCR(descr), NULL); \ }) /* Oid for a signed 16-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_S16_PTR ((int16_t *)NULL) #define SYSCTL_S16(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_16, "S", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16) && \ sizeof(int16_t) == sizeof(*(ptr))) #define SYSCTL_ADD_S16(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ int16_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S16); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_S16 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_16, "S", __DESCR(descr), NULL); \ }) /* Oid for an unsigned 16-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_U16_PTR ((uint16_t *)NULL) #define SYSCTL_U16(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_16, "SU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16) && \ sizeof(uint16_t) == sizeof(*(ptr))) #define SYSCTL_ADD_U16(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ uint16_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U16); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U16 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_16, "SU", __DESCR(descr), NULL); \ }) /* Oid for a signed 32-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_S32_PTR ((int32_t *)NULL) #define SYSCTL_S32(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_32, "I", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32) && \ sizeof(int32_t) == sizeof(*(ptr))) #define SYSCTL_ADD_S32(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ int32_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S32); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_S32 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_32, "I", __DESCR(descr), NULL); \ }) /* Oid for an unsigned 32-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_U32_PTR ((uint32_t *)NULL) #define SYSCTL_U32(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_32, "IU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32) && \ sizeof(uint32_t) == sizeof(*(ptr))) #define SYSCTL_ADD_U32(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ uint32_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U32); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U32 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_32, "IU", __DESCR(descr), NULL); \ }) /* Oid for a signed 64-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_S64_PTR ((int64_t *)NULL) #define SYSCTL_S64(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_64, "Q", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ sizeof(int64_t) == sizeof(*(ptr))) #define SYSCTL_ADD_S64(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ int64_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ }) /* Oid for an unsigned 64-bit int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_U64_PTR ((uint64_t *)NULL) #define SYSCTL_U64(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_64, "QU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ sizeof(uint64_t) == sizeof(*(ptr))) #define SYSCTL_ADD_U64(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ uint64_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ }) /* Oid for an int. If ptr is SYSCTL_NULL_INT_PTR, val is returned. */ #define SYSCTL_NULL_INT_PTR ((int *)NULL) #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, NULL) #define SYSCTL_INT_WITH_LABEL(parent, nbr, name, access, ptr, val, descr, label) \ SYSCTL_OID_WITH_LABEL(parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_int, "I", descr, label); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) && \ sizeof(int) == sizeof(*(ptr))) #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ int *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_int, "I", __DESCR(descr), NULL); \ }) /* Oid for an unsigned int. If ptr is NULL, val is returned. */ #define SYSCTL_NULL_UINT_PTR ((unsigned *)NULL) #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_int, "IU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT) && \ sizeof(unsigned) == sizeof(*(ptr))) #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \ ({ \ unsigned *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_UINT); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ __ptr, val, sysctl_handle_int, "IU", __DESCR(descr), NULL); \ }) /* Oid for a long. The pointer must be non NULL. */ #define SYSCTL_NULL_LONG_PTR ((long *)NULL) #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_long, "L", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG) && \ sizeof(long) == sizeof(*(ptr))) #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ long *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_LONG); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_LONG | CTLFLAG_MPSAFE | (access), \ __ptr, 0, sysctl_handle_long, "L", __DESCR(descr), NULL); \ }) /* Oid for an unsigned long. The pointer must be non NULL. */ #define SYSCTL_NULL_ULONG_PTR ((unsigned long *)NULL) #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_long, "LU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG) && \ sizeof(unsigned long) == sizeof(*(ptr))) #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ unsigned long *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_ULONG); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_ULONG | CTLFLAG_MPSAFE | (access), \ __ptr, 0, sysctl_handle_long, "LU", __DESCR(descr), NULL); \ }) /* Oid for a quad. The pointer must be non NULL. */ #define SYSCTL_NULL_QUAD_PTR ((int64_t *)NULL) #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_64, "Q", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64) && \ sizeof(int64_t) == sizeof(*(ptr))) #define SYSCTL_ADD_QUAD(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ int64_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_S64); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_S64 | CTLFLAG_MPSAFE | (access), \ __ptr, 0, sysctl_handle_64, "Q", __DESCR(descr), NULL); \ }) #define SYSCTL_NULL_UQUAD_PTR ((uint64_t *)NULL) #define SYSCTL_UQUAD(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ ptr, val, sysctl_handle_64, "QU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ sizeof(uint64_t) == sizeof(*(ptr))) #define SYSCTL_ADD_UQUAD(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ uint64_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ __ptr, 0, sysctl_handle_64, "QU", __DESCR(descr), NULL); \ }) /* Oid for a CPU dependent variable */ #define SYSCTL_ADD_UAUTO(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ struct sysctl_oid *__ret; \ CTASSERT((sizeof(uint64_t) == sizeof(*(ptr)) || \ sizeof(unsigned) == sizeof(*(ptr))) && \ ((access) & CTLTYPE) == 0); \ if (sizeof(uint64_t) == sizeof(*(ptr))) { \ __ret = sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ (ptr), 0, sysctl_handle_64, "QU", \ __DESCR(descr), NULL); \ } else { \ __ret = sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_UINT | CTLFLAG_MPSAFE | (access), \ (ptr), 0, sysctl_handle_int, "IU", \ __DESCR(descr), NULL); \ } \ __ret; \ }) /* Oid for a 64-bit unsigned counter(9). The pointer must be non NULL. */ #define SYSCTL_COUNTER_U64(parent, nbr, name, access, ptr, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ (ptr), 0, sysctl_handle_counter_u64, "QU", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64) && \ sizeof(counter_u64_t) == sizeof(*(ptr)) && \ sizeof(uint64_t) == sizeof(**(ptr))) #define SYSCTL_ADD_COUNTER_U64(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ counter_u64_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_U64); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_U64 | CTLFLAG_MPSAFE | (access), \ __ptr, 0, sysctl_handle_counter_u64, "QU", __DESCR(descr), \ NULL); \ }) /* Oid for an array of counter(9)s. The pointer and length must be non zero. */ #define SYSCTL_COUNTER_U64_ARRAY(parent, nbr, name, access, ptr, len, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ (ptr), (len), sysctl_handle_counter_u64_array, "S", descr); \ CTASSERT((((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) && \ sizeof(counter_u64_t) == sizeof(*(ptr)) && \ sizeof(uint64_t) == sizeof(**(ptr))) #define SYSCTL_ADD_COUNTER_U64_ARRAY(ctx, parent, nbr, name, access, \ ptr, len, descr) \ ({ \ counter_u64_t *__ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_OPAQUE | CTLFLAG_MPSAFE | (access), \ __ptr, len, sysctl_handle_counter_u64_array, "S", \ __DESCR(descr), NULL); \ }) /* Oid for an opaque object. Specified by a pointer and a length. */ #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \ SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ ptr, len, sysctl_handle_opaque, fmt, descr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr) \ ({ \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ ptr, len, sysctl_handle_opaque, fmt, __DESCR(descr), NULL); \ }) /* Oid for a struct. Specified by a pointer and a type. */ #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \ SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|(access), \ ptr, sizeof(struct type), sysctl_handle_opaque, \ "S," #type, descr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE) #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \ ({ \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_OPAQUE); \ sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|(access), \ (ptr), sizeof(struct type), \ sysctl_handle_opaque, "S," #type, __DESCR(descr), NULL); \ }) /* Oid for a procedure. Specified by a pointer and an arg. */ #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ SYSCTL_OID(parent, nbr, name, (access), \ ptr, arg, handler, fmt, descr); \ CTASSERT(((access) & CTLTYPE) != 0) #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \ ({ \ CTASSERT(((access) & CTLTYPE) != 0); \ sysctl_add_oid(ctx, parent, nbr, name, (access), \ (ptr), (arg), (handler), (fmt), __DESCR(descr), NULL); \ }) /* Oid to handle limits on uma(9) zone specified by pointer. */ #define SYSCTL_UMA_MAX(parent, nbr, name, access, ptr, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ (ptr), 0, sysctl_handle_uma_zone_max, "I", descr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) #define SYSCTL_ADD_UMA_MAX(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ uma_zone_t __ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | (access), \ __ptr, 0, sysctl_handle_uma_zone_max, "I", __DESCR(descr), \ NULL); \ }) /* Oid to obtain current use of uma(9) zone specified by pointer. */ #define SYSCTL_UMA_CUR(parent, nbr, name, access, ptr, descr) \ SYSCTL_OID(parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ (ptr), 0, sysctl_handle_uma_zone_cur, "I", descr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT) #define SYSCTL_ADD_UMA_CUR(ctx, parent, nbr, name, access, ptr, descr) \ ({ \ uma_zone_t __ptr = (ptr); \ CTASSERT(((access) & CTLTYPE) == 0 || \ ((access) & SYSCTL_CT_ASSERT_MASK) == CTLTYPE_INT); \ sysctl_add_oid(ctx, parent, nbr, name, \ CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RD | (access), \ __ptr, 0, sysctl_handle_uma_zone_cur, "I", __DESCR(descr), \ NULL); \ }) /* * A macro to generate a read-only sysctl to indicate the presence of optional * kernel features. */ #define FEATURE(name, desc) \ SYSCTL_INT_WITH_LABEL(_kern_features, OID_AUTO, name, \ CTLFLAG_RD | CTLFLAG_CAPRD, SYSCTL_NULL_INT_PTR, 1, desc, "feature") #endif /* _KERNEL */ /* * Top-level identifiers */ #define CTL_UNSPEC 0 /* unused */ #define CTL_KERN 1 /* "high kernel": proc, limits */ #define CTL_VM 2 /* virtual memory */ #define CTL_VFS 3 /* filesystem, mount type is next */ #define CTL_NET 4 /* network, see socket.h */ #define CTL_DEBUG 5 /* debugging parameters */ #define CTL_HW 6 /* generic cpu/io */ #define CTL_MACHDEP 7 /* machine dependent */ #define CTL_USER 8 /* user-level */ #define CTL_P1003_1B 9 /* POSIX 1003.1B */ /* * CTL_KERN identifiers */ #define KERN_OSTYPE 1 /* string: system version */ #define KERN_OSRELEASE 2 /* string: system release */ #define KERN_OSREV 3 /* int: system revision */ #define KERN_VERSION 4 /* string: compile time info */ #define KERN_MAXVNODES 5 /* int: max vnodes */ #define KERN_MAXPROC 6 /* int: max processes */ #define KERN_MAXFILES 7 /* int: max open files */ #define KERN_ARGMAX 8 /* int: max arguments to exec */ #define KERN_SECURELVL 9 /* int: system security level */ #define KERN_HOSTNAME 10 /* string: hostname */ #define KERN_HOSTID 11 /* int: host identifier */ #define KERN_CLOCKRATE 12 /* struct: struct clockrate */ #define KERN_VNODE 13 /* struct: vnode structures */ #define KERN_PROC 14 /* struct: process entries */ #define KERN_FILE 15 /* struct: file entries */ #define KERN_PROF 16 /* node: kernel profiling info */ #define KERN_POSIX1 17 /* int: POSIX.1 version */ #define KERN_NGROUPS 18 /* int: # of supplemental group ids */ #define KERN_JOB_CONTROL 19 /* int: is job control available */ #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */ #define KERN_BOOTTIME 21 /* struct: time kernel was booted */ #define KERN_NISDOMAINNAME 22 /* string: YP domain name */ #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */ #define KERN_OSRELDATE 24 /* int: kernel release date */ #define KERN_NTP_PLL 25 /* node: NTP PLL control */ #define KERN_BOOTFILE 26 /* string: name of booted kernel */ #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */ #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */ #define KERN_DUMPDEV 29 /* struct cdev *: device to dump on */ #define KERN_IPC 30 /* node: anything related to IPC */ #define KERN_DUMMY 31 /* unused */ #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */ #define KERN_USRSTACK 33 /* int: address of USRSTACK */ #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */ #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */ #define KERN_HOSTUUID 36 /* string: host UUID identifier */ #define KERN_ARND 37 /* int: from arc4rand() */ #define KERN_MAXPHYS 38 /* int: MAXPHYS value */ /* * KERN_PROC subtypes */ #define KERN_PROC_ALL 0 /* everything */ #define KERN_PROC_PID 1 /* by process id */ #define KERN_PROC_PGRP 2 /* by process group id */ #define KERN_PROC_SESSION 3 /* by session of pid */ #define KERN_PROC_TTY 4 /* by controlling tty */ #define KERN_PROC_UID 5 /* by effective uid */ #define KERN_PROC_RUID 6 /* by real uid */ #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */ #define KERN_PROC_PROC 8 /* only return procs */ #define KERN_PROC_SV_NAME 9 /* get syscall vector name */ #define KERN_PROC_RGID 10 /* by real group id */ #define KERN_PROC_GID 11 /* by effective group id */ #define KERN_PROC_PATHNAME 12 /* path to executable */ #define KERN_PROC_OVMMAP 13 /* Old VM map entries for process */ #define KERN_PROC_OFILEDESC 14 /* Old file descriptors for process */ #define KERN_PROC_KSTACK 15 /* Kernel stacks for process */ #define KERN_PROC_INC_THREAD 0x10 /* * modifier for pid, pgrp, tty, * uid, ruid, gid, rgid and proc * This effectively uses 16-31 */ #define KERN_PROC_VMMAP 32 /* VM map entries for process */ #define KERN_PROC_FILEDESC 33 /* File descriptors for process */ #define KERN_PROC_GROUPS 34 /* process groups */ #define KERN_PROC_ENV 35 /* get environment */ #define KERN_PROC_AUXV 36 /* get ELF auxiliary vector */ #define KERN_PROC_RLIMIT 37 /* process resource limits */ #define KERN_PROC_PS_STRINGS 38 /* get ps_strings location */ #define KERN_PROC_UMASK 39 /* process umask */ #define KERN_PROC_OSREL 40 /* osreldate for process binary */ #define KERN_PROC_SIGTRAMP 41 /* signal trampoline location */ #define KERN_PROC_CWD 42 /* process current working directory */ #define KERN_PROC_NFDS 43 /* number of open file descriptors */ /* * KERN_IPC identifiers */ #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */ #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */ #define KIPC_SOMAXCONN 3 /* int: max length of connection q */ #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */ #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */ #define KIPC_MAX_HDR 6 /* int: max total length of headers */ #define KIPC_MAX_DATALEN 7 /* int: max length of data? */ /* * CTL_HW identifiers */ #define HW_MACHINE 1 /* string: machine class */ #define HW_MODEL 2 /* string: specific machine model */ #define HW_NCPU 3 /* int: number of cpus */ #define HW_BYTEORDER 4 /* int: machine byte order */ #define HW_PHYSMEM 5 /* int: total memory */ #define HW_USERMEM 6 /* int: non-kernel memory */ #define HW_PAGESIZE 7 /* int: software page size */ #define HW_DISKNAMES 8 /* strings: disk drive names */ #define HW_DISKSTATS 9 /* struct: diskstats[] */ #define HW_FLOATINGPT 10 /* int: has HW floating point? */ #define HW_MACHINE_ARCH 11 /* string: machine architecture */ #define HW_REALMEM 12 /* int: 'real' memory */ /* * CTL_USER definitions */ #define USER_CS_PATH 1 /* string: _CS_PATH */ #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */ #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */ #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */ #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */ #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */ #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */ #define USER_LINE_MAX 8 /* int: LINE_MAX */ #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */ #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */ #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */ #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */ #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */ #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */ #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */ #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */ #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */ #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */ #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */ #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */ #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */ #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */ #define CTL_P1003_1B_MEMLOCK 3 /* boolean */ #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */ #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */ #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */ #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */ #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */ #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */ #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */ #define CTL_P1003_1B_FSYNC 11 /* boolean */ #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */ #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */ #define CTL_P1003_1B_TIMERS 14 /* boolean */ #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */ #define CTL_P1003_1B_AIO_MAX 16 /* int */ #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */ #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */ #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */ #define CTL_P1003_1B_PAGESIZE 20 /* int */ #define CTL_P1003_1B_RTSIG_MAX 21 /* int */ #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */ #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */ #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */ #define CTL_P1003_1B_TIMER_MAX 25 /* int */ #define CTL_P1003_1B_MAXID 26 #ifdef _KERNEL /* * Declare some common oids. */ extern struct sysctl_oid_list sysctl__children; SYSCTL_DECL(_kern); SYSCTL_DECL(_kern_features); SYSCTL_DECL(_kern_ipc); SYSCTL_DECL(_kern_proc); SYSCTL_DECL(_kern_sched); SYSCTL_DECL(_kern_sched_stats); SYSCTL_DECL(_sysctl); SYSCTL_DECL(_vm); SYSCTL_DECL(_vm_stats); SYSCTL_DECL(_vm_stats_misc); SYSCTL_DECL(_vfs); SYSCTL_DECL(_net); SYSCTL_DECL(_debug); SYSCTL_DECL(_debug_sizeof); SYSCTL_DECL(_dev); SYSCTL_DECL(_hw); SYSCTL_DECL(_hw_bus); SYSCTL_DECL(_hw_bus_devices); SYSCTL_DECL(_hw_bus_info); SYSCTL_DECL(_machdep); SYSCTL_DECL(_user); SYSCTL_DECL(_compat); SYSCTL_DECL(_regression); SYSCTL_DECL(_security); SYSCTL_DECL(_security_bsd); +#ifdef EXT_RESOURCES +SYSCTL_DECL(_clock); +#endif extern char machine[]; extern char osrelease[]; extern char ostype[]; extern char kern_ident[]; /* Dynamic oid handling */ struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist, struct sysctl_oid_list *parent, int nbr, const char *name, int kind, void *arg1, intmax_t arg2, int (*handler)(SYSCTL_HANDLER_ARGS), const char *fmt, const char *descr, const char *label); int sysctl_remove_name(struct sysctl_oid *parent, const char *name, int del, int recurse); void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name); int sysctl_move_oid(struct sysctl_oid *oidp, struct sysctl_oid_list *parent); int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse); int sysctl_ctx_init(struct sysctl_ctx_list *clist); int sysctl_ctx_free(struct sysctl_ctx_list *clist); struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist, struct sysctl_oid *oidp); struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist, struct sysctl_oid *oidp); int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist, struct sysctl_oid *oidp); int kernel_sysctl(struct thread *td, int *name, u_int namelen, void *old, size_t *oldlenp, void *new, size_t newlen, size_t *retval, int flags); int kernel_sysctlbyname(struct thread *td, char *name, void *old, size_t *oldlenp, void *new, size_t newlen, size_t *retval, int flags); int userland_sysctl(struct thread *td, int *name, u_int namelen, void *old, size_t *oldlenp, int inkernel, void *new, size_t newlen, size_t *retval, int flags); int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid, int *nindx, struct sysctl_req *req); void sysctl_wlock(void); void sysctl_wunlock(void); int sysctl_wire_old_buffer(struct sysctl_req *req, size_t len); struct sbuf; struct sbuf *sbuf_new_for_sysctl(struct sbuf *, char *, int, struct sysctl_req *); #else /* !_KERNEL */ #include __BEGIN_DECLS int sysctl(const int *, u_int, void *, size_t *, const void *, size_t); int sysctlbyname(const char *, void *, size_t *, const void *, size_t); int sysctlnametomib(const char *, int *, size_t *); __END_DECLS #endif /* _KERNEL */ #endif /* !_SYS_SYSCTL_H_ */