/*
* Map a table at a given offset into the crashdump map. It first
* maps the header to determine the table length and then maps the
* entire table.
*/
static void *
map_table(vm_paddr_t pa, int offset, const char *sig)
{
ACPI_TABLE_HEADER *header;
vm_offset_t length;
void *table;
header = table_map(pa, offset, sizeof(ACPI_TABLE_HEADER));
if (strncmp(header->Signature, sig, ACPI_NAME_SIZE) != 0) {
table_unmap(header, sizeof(ACPI_TABLE_HEADER));
return (NULL);
}
length = header->Length;
table_unmap(header, sizeof(ACPI_TABLE_HEADER));
table = table_map(pa, offset, length);
if (ACPI_FAILURE(AcpiTbChecksum(table, length))) {
if (bootverbose)
printf("ACPI: Failed checksum for table %s\n", sig);
#if (ACPI_CHECKSUM_ABORT)
table_unmap(table, length);
return (NULL);
#endif
}
return (table);
}
/*
* deallocates the stroage for the configuration data
*/
void (conf_free)(void)
{
table_map(section, tabfree, section);
table_free(§ion);
current = NULL;
preset = 0;
errcode = CONF_ERR_OK;
control = 0;
}
/*
* provides a callback for conf_free()
*/
static void tabfree(const void *key, void **value, void *cl)
{
UNUSED(key);
if (cl == section) { /* for section table */
table_t *t = *value;
table_map(t, tabfree, *value);
table_free(&t);
} else { /* for var=val tables */
struct valnode_t *pnode = *value;
assert(pnode);
MEM_FREE(pnode->freep);
MEM_FREE(pnode);
}
}
static inline int __page_map(paddr_t paddr, size_t pml4, size_t dirtbl, size_t dir, size_t table, int flags)
{
/* Sanity checking */
if (pml4 > 511 || dirtbl > 511 || dir > 511 || table > 511) {
return -EINVAL;
}
__page_t page = {.raw = paddr};
page.present = 1;
page.write = !!(flags & (VM_KW | VM_UW));
page.user = !!(flags & (VM_URWX));
/* Check if PDPT is present */
if (!LVL4[pml4].present) {
paddr_t paddr = frame_get();
pdpt_map(paddr, pml4, flags);
}
pages[GET_PHYS_ADDR(&LVL4[pml4])/PAGE_SIZE].refs++;
/* Check if PD is present */
if (!LVL3(pml4)[dirtbl].present) {
paddr_t paddr = frame_get();
pd_map(paddr, pml4, dirtbl, flags);
}
pages[GET_PHYS_ADDR(&LVL3(pml4)[dirtbl])/PAGE_SIZE].refs++;
/* Check if table is present */
if (!LVL2(pml4, dirtbl)[dir].present) {
paddr_t paddr = frame_get();
table_map(paddr, pml4, dirtbl, dir, flags);
}
pages[GET_PHYS_ADDR(&LVL2(pml4, dirtbl)[dir])/PAGE_SIZE].refs++;
LVL1(pml4, dirtbl, dir)[table] = page;
return 0;
}
/*
* See if a given ACPI table is the requested table. Returns the
* length of the able if it matches or zero on failure.
*/
static int
probe_table(vm_paddr_t address, const char *sig)
{
ACPI_TABLE_HEADER *table;
table = table_map(address, 0, sizeof(ACPI_TABLE_HEADER));
if (table == NULL) {
if (bootverbose)
printf("ACPI: Failed to map table at 0x%jx\n",
(uintmax_t)address);
return (0);
}
if (bootverbose)
printf("Table '%.4s' at 0x%jx\n", table->Signature,
(uintmax_t)address);
if (strncmp(table->Signature, sig, ACPI_NAME_SIZE) != 0) {
table_unmap(table, sizeof(ACPI_TABLE_HEADER));
return (0);
}
table_unmap(table, sizeof(ACPI_TABLE_HEADER));
return (1);
}
int main() {
table_t tab = table_new(1024, cmp, dictGenHashFunction);
table_put(tab, "append", "cmd_append");
table_put(tab, "bitcount", "cmd_bitcount");
table_put(tab, "brpop", "cmd_brpop");
table_put(tab, "brpoplpush", "cmd_brpoplpush");
table_put(tab, "decr", "cmd_decr");
table_put(tab, "decrby", "cmd_decrby");
table_put(tab, "del", "cmd_del");
table_put(tab, "exists", "cmd_exists");
table_put(tab, "get", "cmd_get");
table_put(tab, "getbit", "cmd_getbit");
table_put(tab, "getrange", "cmd_getrange");
table_put(tab, "incr", "cmd_incr");
table_put(tab, "incrby", "cmd_incrby");
table_put(tab, "keys", "cmd_keys");
table_put(tab, "lindex", "cmd_lindex");
table_put(tab, "linsert", "cmd_linsert");
table_put(tab, "llen", "cmd_llen");
table_put(tab, "lpop", "cmd_lpop");
table_put(tab, "lpush", "cmd_lpush");
table_put(tab, "lpushx", "cmd_lpushx");
table_put(tab, "lrange", "cmd_lrange");
table_put(tab, "lrem", "cmd_lrem");
table_put(tab, "lset", "cmd_lset");
table_put(tab, "ltrim", "cmd_ltrim");
table_put(tab, "mget", "cmd_mget");
table_put(tab, "msetnx", "cmd_msetnx");
table_put(tab, "randomkey", "cmd_randomkey");
table_put(tab, "rename", "cmd_rename");
table_put(tab, "rpop", "cmd_rpop");
table_put(tab, "rpoplpush", "cmd_rpoplpush");
table_put(tab, "rpush", "cmd_rpush");
table_put(tab, "rpushx", "cmd_rpushx");
table_put(tab, "set", "cmd_set");
table_put(tab, "setbit", "cmd_setbit");
table_put(tab, "setrange", "cmd_setrange");
table_put(tab, "strlen", "cmd_strlen");
table_put(tab, "type", "cmd_type");
table_map(tab, apply);
printf("len = %d\n", table_length(tab));
char key[32];
scanf("%s", key);
printf("%s\n", (char *)table_get(tab, key));
printf("remove set\n");
table_remove(tab, "set");
table_map(tab, apply);
printf("len = %d\n", table_length(tab));
scanf("%s", key);
printf("%s\n", (char *)table_get(tab, key));
table_free(&tab);
return 0;
}
