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authorIan Moffett <ian@osmora.org>2024-06-24 22:55:29 -0400
committerIan Moffett <ian@osmora.org>2024-06-24 22:55:29 -0400
commit236963e7563be3e3f8220dac7bb4af446928e194 (patch)
treee521ea226db0345bbb3679fffe09d96254b7dc73 /sys/fs
parent214eadc62b5578f76c98a38a28f8b3d80ac4d6ad (diff)
Clean out for expt
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/fs')
-rw-r--r--sys/fs/devfs.c295
-rw-r--r--sys/fs/initramfs.c262
-rw-r--r--sys/fs/procfs.c206
-rw-r--r--sys/fs/procfs_subr.c114
4 files changed, 0 insertions, 877 deletions
diff --git a/sys/fs/devfs.c b/sys/fs/devfs.c
deleted file mode 100644
index 7fcdbad..0000000
--- a/sys/fs/devfs.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
- * 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.
- * 3. Neither the name of Hyra 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <fs/devfs.h>
-#include <sys/vfs.h>
-#include <sys/mount.h>
-#include <sys/spinlock.h>
-#include <sys/queue.h>
-#include <sys/vnode.h>
-#include <sys/errno.h>
-#include <sys/cdefs.h>
-#include <vm/dynalloc.h>
-#include <string.h>
-
-struct device_node {
- struct spinlock lock;
- char *name;
- uint8_t is_block : 1;
- dev_t major, minor;
- TAILQ_ENTRY(device_node) link;
-};
-
-static TAILQ_HEAD(, device_node) nodes;
-static bool nodelist_init = false;
-
-static struct device_node *
-node_from_name(const char *name)
-{
- struct device_node *n;
-
- TAILQ_FOREACH(n, &nodes, link) {
- if (strcmp(n->name, name) == 0) {
- return n;
- }
- }
-
- return NULL;
-}
-
-static int
-cdev_read(struct device *dev, struct device_node *node, struct sio_txn *sio)
-{
- size_t n_bytes;
-
- spinlock_acquire(&node->lock);
- n_bytes = dev->read(dev, sio);
- spinlock_release(&node->lock);
- return n_bytes;
-}
-
-static int
-blkdev_read(struct device *dev, struct device_node *node, struct sio_txn *sio)
-{
- char *buf;
- struct sio_txn dev_txn = {0};
- size_t n_blocks = __DIV_ROUNDUP(sio->len, dev->blocksize);
- size_t n_bytes = n_blocks * dev->blocksize;
- size_t cpy_off;
-
- if (dev->blocksize == 0 || sio->len == 0) {
- /* Sizes can't be zero! */
- return -EIO;
- }
-
- spinlock_acquire(&node->lock);
- buf = dynalloc_memalign(n_bytes, 0x1000);
-
- if (buf == NULL) {
- spinlock_release(&node->lock);
- return -ENOMEM;
- }
-
- dev_txn.len = n_blocks;
- dev_txn.buf = buf;
- dev_txn.offset = sio->offset / dev->blocksize;
- dev->read(dev, &dev_txn);
- spinlock_release(&node->lock);
-
- cpy_off = sio->offset - (dev_txn.offset * dev->blocksize);
- for (size_t i = 0; i < sio->len; ++i) {
- ((uint8_t *)sio->buf)[i] = buf[i + cpy_off];
- }
-
- dynfree(buf);
- return sio->len;
-}
-
-static int
-vop_vget(struct vnode *parent, const char *name, struct vnode **vp)
-{
- struct device_node *dev;
- struct vnode *vnode;
- int status, vtype;
-
- if (!nodelist_init) {
- return -EIO;
- }
-
- if ((dev = node_from_name(name)) == NULL) {
- return -ENOENT;
- }
-
- vtype = dev->is_block ? VBLK : VCHR;
- if ((status = vfs_alloc_vnode(&vnode, NULL, vtype)) != 0) {
- return status;
- }
-
- vnode->parent = parent;
- vnode->data = dev;
- vnode->vops = &g_devfs_vops;
- *vp = vnode;
- return 0;
-}
-
-static int
-vop_read(struct vnode *vp, struct sio_txn *sio)
-{
- struct device_node *node;
- struct device *dev;
-
- if (vp == NULL) {
- return -EIO;
- }
-
- node = vp->data;
- dev = device_fetch(node->major, node->minor);
-
- if (dev->blocksize > 1)
- return blkdev_read(dev, node, sio);
-
- return cdev_read(dev, node, sio);
-}
-
-static int
-vop_open(struct vnode *vp)
-{
- struct device_node *node;
- struct device *dev;
-
- if (vp == NULL) {
- return -EIO;
- }
-
- node = vp->data;
- dev = device_fetch(node->major, node->minor);
-
- if (dev->open == NULL) {
- return -EIO;
- }
-
- return dev->open(dev);
-}
-
-static int
-vop_close(struct vnode *vp)
-{
- struct device_node *node;
- struct device *dev;
-
- if (vp == NULL) {
- return -EIO;
- }
-
- node = vp->data;
- dev = device_fetch(node->major, node->minor);
-
- if (dev->close == NULL) {
- return -EIO;
- }
-
- return dev->close(dev);
-}
-
-static int
-devfs_init(struct fs_info *info, struct vnode *source)
-{
- if (source != NULL)
- return -EINVAL;
-
- TAILQ_INIT(&nodes);
- nodelist_init = true;
- return 0;
-}
-
-static int
-devfs_make_devicenode(const char *name, struct device_node **node_out)
-{
- size_t name_len = 0;
- const char *p = name;
- struct device_node *node;
-
- /*
- * Only one filename, no paths.
- *
- * TODO: Do something better here...
- */
- for (; *p; ++p, ++name_len) {
- if (*p == '/')
- return -EINVAL;
- }
-
- /* Ensure this filename has valid chars */
- if (!vfs_is_valid_path(name)) {
- return -EINVAL;
- }
-
- node = dynalloc(sizeof(struct device_node));
- if (node == NULL)
- return -ENOMEM;
-
- node->name = dynalloc(sizeof(char) * name_len);
- if (node->name == NULL)
- return -ENOMEM;
-
- memcpy(node->name, name, name_len + 1);
- *node_out = node;
- return 0;
-}
-
-int
-devfs_add_dev(const char *name, const struct device *dev)
-{
- struct device_node *node;
- int status;
-
- if ((status = devfs_make_devicenode(name, &node)) != 0) {
- return status;
- }
-
- node->major = dev->major;
- node->minor = dev->minor;
- node->is_block = dev->blocksize > 1;
- TAILQ_INSERT_HEAD(&nodes, node, link);
- return 0;
-}
-
-/*
- * Fetch a device descriptor from a vnode.
- */
-int
-devfs_get_dev(struct vnode *vp, struct device **res)
-{
- struct device_node *n;
- struct device *dev;
-
- /* Is this really a device? */
- if (vp->type != VBLK && vp->type != VCHR) {
- return -ENODEV;
- }
-
- n = vp->data;
- if ((dev = device_fetch(n->major, n->minor)) == NULL) {
- return -ENODEV;
- }
-
- *res = dev;
- return 0;
-}
-
-struct vfsops g_devfs_ops = {
- .init = devfs_init
-};
-
-struct vops g_devfs_vops = {
- .vget = vop_vget,
- .read = vop_read,
- .open = vop_open,
- .close = vop_close
-};
diff --git a/sys/fs/initramfs.c b/sys/fs/initramfs.c
deleted file mode 100644
index e15c00d..0000000
--- a/sys/fs/initramfs.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
- * 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.
- * 3. Neither the name of Hyra 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <fs/initramfs.h>
-#include <sys/cdefs.h>
-#include <sys/types.h>
-#include <sys/limine.h>
-#include <sys/errno.h>
-#include <sys/panic.h>
-#include <sys/vfs.h>
-#include <sys/vnode.h>
-#include <vm/dynalloc.h>
-#include <string.h>
-
-__MODULE_NAME("initramfs");
-__KERNEL_META("$Hyra$: initramfs.c, Ian Marco Moffett, "
- "Initial ram filesystem");
-
-static volatile struct limine_module_request mod_req = {
- .id = LIMINE_MODULE_REQUEST,
- .revision = 0
-};
-
-static const char *initramfs = NULL;
-static size_t initramfs_size = 0;
-
-#define TAR_TYPEFLAG_NORMAL '0'
-#define TAR_TYPEFLAG_HARDLINK '1'
-#define TAR_TYPEFLAG_DIR '5'
-
-struct tar_hdr {
- char filename[100];
- char mode[8];
- char uid[8];
- char gid[8];
- char size[12];
- char mtime[12];
- char checksum[8];
- char type;
- char link_name[100];
- char magic[6];
- char version[2];
- char uname[32];
- char gname[32];
- char dev_major[8];
- char dev_minor[8];
- char prefix[155];
-};
-
-static struct tar_hdr *initramfs_from_path(struct tar_hdr *hdr,
- const char *path);
-
-static size_t
-getsize(const char *in);
-
-static inline char *
-hdr_to_contents(struct tar_hdr *hdr)
-{
- return ((char*)hdr) + 0x200;
-}
-
-static int
-vop_vget(struct vnode *parent, const char *name, struct vnode **vp)
-{
- struct tar_hdr *hdr;
- struct vnode *vnode;
- int status;
- int vtype = VREG;
-
- if (initramfs == NULL) {
- return -EIO;
- }
-
- hdr = initramfs_from_path((void *)initramfs, name);
-
- if (hdr == NULL) {
- return -ENOENT;
- }
-
- if (hdr->type == TAR_TYPEFLAG_DIR) {
- vtype = VDIR;
- }
-
- /* Allocate vnode for this file */
- if ((status = vfs_alloc_vnode(&vnode, NULL, vtype)) != 0) {
- return status;
- }
-
- vnode->parent = parent;
- vnode->data = hdr;
-
- vnode->vops = &g_initramfs_vops;
- *vp = vnode;
- return 0;
-}
-
-static int
-vop_read(struct vnode *vp, struct sio_txn *sio)
-{
- struct tar_hdr *hdr;
- size_t size;
- char *contents;
- char *buf = sio->buf;
-
- if (vp->data == NULL) {
- return -EIO;
- }
-
- hdr = vp->data;
- size = getsize(hdr->size);
- contents = hdr_to_contents(hdr);
-
- for (size_t i = sio->offset; i < sio->len; ++i) {
- if (i >= size) {
- return i + 1;
- }
- buf[i - sio->offset] = contents[i];
- }
-
- return sio->len;
-}
-
-static int
-vop_getattr(struct vnode *vp, struct vattr *vattr)
-{
- struct tar_hdr *hdr = vp->data;
-
- if (hdr == NULL) {
- return -EIO;
- }
-
- switch (hdr->type) {
- case TAR_TYPEFLAG_NORMAL:
- vattr->type = VREG;
- break;
- case TAR_TYPEFLAG_DIR:
- vattr->type = VDIR;
- break;
- }
-
- vattr->size = getsize(hdr->size);
- return 0;
-}
-
-static char *
-get_module(const char *path, uint64_t *size) {
- for (uint64_t i = 0; i < mod_req.response->module_count; ++i) {
- if (strcmp(mod_req.response->modules[i]->path, path) == 0) {
- *size = mod_req.response->modules[i]->size;
- return mod_req.response->modules[i]->address;
- }
- }
-
- return NULL;
-}
-
-static size_t
-getsize(const char *in)
-{
- size_t size = 0, count = 1;
-
- for (size_t j = 11; j > 0; --j, count *= 8) {
- size += (in[j-1]-'0')*count;
- }
-
- return size;
-}
-
-static int
-initramfs_init(struct fs_info *info, struct vnode *source)
-{
- if (source != NULL)
- return -EINVAL;
-
- initramfs = get_module("/boot/initramfs.tar", &initramfs_size);
- info->caps = FSCAP_FULLPATH;
-
- if (initramfs == NULL) {
- panic("Failed to load initramfs\n");
- }
-
- return 0;
-}
-
-static struct tar_hdr *
-initramfs_from_path(struct tar_hdr *hdr, const char *path)
-{
-
- uintptr_t addr = (uintptr_t)hdr;
- size_t size;
-
- if (*path != '/') {
- return NULL;
- }
- ++path;
-
- while (strcmp(hdr->magic, "ustar") == 0) {
- size = getsize(hdr->size);
-
- if (strcmp(hdr->filename, path) == 0) {
- return hdr;
- }
-
- addr += 512 + __ALIGN_UP(size, 512);
- hdr = (struct tar_hdr *)addr;
- }
-
- return NULL;
-}
-
-const char *
-initramfs_open(const char *path)
-{
- struct tar_hdr *hdr;
-
- if (initramfs == NULL) {
- return NULL;
- }
-
- if (strlen(path) > 99) {
- return NULL;
- }
-
- hdr = initramfs_from_path((void *)initramfs, path);
- return (hdr == NULL) ? NULL : hdr_to_contents(hdr);
-}
-
-struct vfsops g_initramfs_ops = {
- .init = initramfs_init,
-};
-
-struct vops g_initramfs_vops = {
- .vget = vop_vget,
- .read = vop_read,
- .getattr = vop_getattr
-};
diff --git a/sys/fs/procfs.c b/sys/fs/procfs.c
deleted file mode 100644
index 3a0e2d3..0000000
--- a/sys/fs/procfs.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
- * 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.
- * 3. Neither the name of Hyra 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <sys/types.h>
-#include <sys/mount.h>
-#include <sys/queue.h>
-#include <sys/errno.h>
-#include <vm/dynalloc.h>
-#include <sys/vfs.h>
-#include <fs/procfs.h>
-#include <string.h>
-
-struct proc_node {
- struct spinlock lock;
- struct proc_entry *entry;
- char *name;
- TAILQ_ENTRY(proc_node) link;
-};
-
-static TAILQ_HEAD(, proc_node) proc_nodes;
-static bool nodelist_init = false;
-
-static struct proc_node *
-name_to_node(const char *name)
-{
- struct proc_node *n;
-
- TAILQ_FOREACH(n, &proc_nodes, link) {
- if (strcmp(n->name, name) == 0) {
- return n;
- }
- }
-
- return NULL;
-}
-
-static int
-procfs_make_node(const char *name, struct proc_node **res)
-{
- size_t name_len = 0;
- const char *p = name;
- struct proc_node *n;
-
- /* Disallow paths */
- for (; *p; ++p, ++name_len) {
- if (*p == '/') {
- return -EINVAL;
- }
- }
-
- if (!vfs_is_valid_path(name))
- return -EINVAL;
-
- n = dynalloc(sizeof(struct proc_node));
- if (n == NULL)
- return -ENOMEM;
-
- n->name = dynalloc(sizeof(char) * name_len);
- if (n->name == NULL)
- return -ENOMEM;
-
- memcpy(n->name, name, name_len + 1);
- *res = n;
- return 0;
-}
-
-struct proc_entry *
-procfs_alloc_entry(void)
-{
- struct proc_entry *entry;
-
- entry = dynalloc(sizeof(*entry));
- if (entry == NULL)
- return NULL;
-
- memset(entry, 0, sizeof(*entry));
- return entry;
-}
-
-int
-procfs_add_entry(const char *name, struct proc_entry *entry)
-{
- struct proc_node *proc;
- int status;
-
- if (name == NULL || entry == NULL)
- return -EINVAL;
- if ((status = procfs_make_node(name, &proc)) != 0)
- return status;
-
- proc->entry = entry;
- TAILQ_INSERT_HEAD(&proc_nodes, proc, link);
- return 0;
-}
-
-static int
-procfs_init(struct fs_info *info, struct vnode *source)
-{
- if (source != NULL)
- return -EINVAL;
-
-
- TAILQ_INIT(&proc_nodes);
- nodelist_init = true;
- procfs_populate();
- return 0;
-}
-
-static int
-procfs_rw_vnode(struct vnode *vp, struct sio_txn *sio, bool write)
-{
- struct proc_node *proc;
- struct proc_entry *entry;
-
- if (vp == NULL)
- return -EIO;
-
- proc = vp->data;
- entry = proc->entry;
-
- return write ? entry->write(entry, sio)
- : entry->read(entry, sio);
-}
-
-static int
-vop_write(struct vnode *vp, struct sio_txn *sio)
-{
- return procfs_rw_vnode(vp, sio, true);
-}
-
-static int
-vop_read(struct vnode *vp, struct sio_txn *sio)
-{
- return procfs_rw_vnode(vp, sio, false);
-}
-
-static int
-vop_open(struct vnode *vp)
-{
- return 0;
-}
-
-static int
-vop_close(struct vnode *vp)
-{
- return 0;
-}
-
-static int
-vop_vget(struct vnode *parent, const char *name, struct vnode **vp)
-{
- struct proc_node *proc;
- struct vnode *vnode;
- int status;
-
- if (!nodelist_init)
- return -EIO;
- if ((proc = name_to_node(name)) == NULL)
- return -ENOENT;
- if ((status = vfs_alloc_vnode(&vnode, NULL, VREG)) != 0)
- return status;
-
- vnode->parent = parent;
- vnode->data = proc;
- vnode->vops = &g_procfs_vops;
- *vp = vnode;
- return 0;
-}
-
-struct vfsops g_procfs_ops = {
- .init = procfs_init
-};
-
-struct vops g_procfs_vops = {
- .vget = vop_vget,
- .read = vop_read,
- .write = vop_write,
- .open = vop_open,
- .close = vop_close
-};
diff --git a/sys/fs/procfs_subr.c b/sys/fs/procfs_subr.c
deleted file mode 100644
index 8b95919..0000000
--- a/sys/fs/procfs_subr.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
- * 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.
- * 3. Neither the name of Hyra 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <sys/panic.h>
-#include <sys/intr.h>
-#include <sys/syslog.h>
-#include <machine/cpu.h>
-#include <fs/procfs.h>
-#include <vm/vm.h>
-#include <string.h>
-
-static bool populated = false;
-
-static int
-procfs_ver_read(struct proc_entry *p, struct sio_txn *sio)
-{
- char buf[1024];
- size_t len;
-
- len = snprintf(buf, sizeof(buf), "Hyra/%s v%s: %s (%s)\n",
- HYRA_ARCH, HYRA_VERSION,
- HYRA_BUILDDATE, HYRA_BUILDBRANCH);
-
- /* Truncate if needed */
- if (len > sio->len)
- len = sio->len;
-
- memcpy(sio->buf, buf, len);
- return len;
-}
-
-static int
-procfs_memstat_read(struct proc_entry *p, struct sio_txn *sio)
-{
- struct vm_memstat stat;
- struct physmem_stat *pstat;
- char buf[1024];
- size_t len;
-
- stat = vm_memstat();
- pstat = &stat.pmem_stat;
- len = snprintf(buf, sizeof(buf),
- "TotalMem: %d KiB\n"
- "ReservedMem: %d KiB\n"
- "AvailableMem: %d KiB\n"
- "AllocatedMem: %d KiB\n"
- "VMemObjCount: %d\n",
- pstat->total_kib,
- pstat->reserved_kib,
- pstat->avl_kib,
- pstat->alloc_kib,
- stat.vmobj_cnt);
-
- /* Truncate if needed */
- if (len > sio->len)
- len = sio->len;
-
- memcpy(sio->buf, buf, len);
- return len;
-}
-
-/*
- * Populate procfs with basic misc entries
- */
-void
-procfs_populate(void)
-{
- struct proc_entry *version;
- struct proc_entry *memstat;
-
- if (populated)
- return;
-
- populated = true;
-
- /* Kernel version */
- version = procfs_alloc_entry();
- version->read = procfs_ver_read;
- procfs_add_entry("version", version);
-
- /* Memstat */
- memstat = procfs_alloc_entry();
- memstat->read = procfs_memstat_read;
- procfs_add_entry("memstat", memstat);
-
- intr_init_proc();
- syslog_init_proc();
-}