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Implement sysctl(sysctl.proc_cputype) (#304)
+62
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src/kernel/emulation/linux/CMakeLists.txt
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src/kernel/emulation/linux/CMakeLists.txt
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src/kernel/emulation/linux/misc/sysctl.c
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src/kernel/emulation/linux/misc/sysctl.c
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#include "sysctl_unspec.h"
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#include "sysctl_kern.h"
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#include "sysctl_machdep.h"
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#include "sysctl_sysctl.h"
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extern char *strchr(const char *s, int c);
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extern int strncmp(const char *s1, const char *s2, __SIZE_TYPE__ n);
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extern __SIZE_TYPE__ strlen(const char* src);
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extern char* strtok_r(char* str, const char* delim, char** saveptr);
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#define _CTL_SYSCTL 100
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const struct known_sysctl sysctls_global[] = {
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{ .oid = CTL_UNSPEC, .type = CTLTYPE_NODE, .exttype = "", .name = "unspec", .subctls = sysctls_unspec },
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{ .oid = CTL_HW, .type = CTLTYPE_NODE, .exttype = "", .name = "hw", .subctls = sysctls_hw },
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{ .oid = CTL_KERN, .type = CTLTYPE_NODE, .exttype = "", .name = "kern", .subctls = sysctls_kern },
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{ .oid = CTL_MACHDEP, .type = CTLTYPE_NODE, .exttype = "", .name = "machdep", .subctls = sysctls_machdep },
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{ .oid = _CTL_SYSCTL, .type = CTLTYPE_NODE, .exttype = "", .name = "sysctl", .subctls = sysctls_sysctl },
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{ .oid = -1 }, /* terminating entry */
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};
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src/kernel/emulation/linux/misc/sysctl_sysctl.c
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src/kernel/emulation/linux/misc/sysctl_sysctl.c
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#include "sysctl_sysctl.h"
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#include <lkm/api.h>
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#include <mach/machine.h>
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#include <sys/errno.h>
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extern int lkm_call(int call, void*);
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enum {
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_PROC_CPUTYPE = 1000,
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};
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static sysctl_handler(handle_proc_cputype);
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const struct known_sysctl sysctls_sysctl[] = {
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{ .oid = _PROC_CPUTYPE, .type = CTLTYPE_INT, .exttype = "I", .name = "proc_cputype", .handler = handle_proc_cputype },
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{ .oid = -1 }
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};
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sysctl_handler(handle_proc_cputype)
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{
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if (nlen < 3)
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return -ENOENT;
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int pid = name[2];
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int is64bit = lkm_call(NR_task_64bit, (void*)(long)pid);
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if (is64bit < 0)
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return -ENOENT;
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else
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{
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if (*oldlen < sizeof(int))
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return -EINVAL;
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#if defined(__i386__) || defined(__x86_64__)
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*((unsigned int*) old) = CPU_TYPE_I386;
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#elif defined(__arm__) || defined(__aarch64__)
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*((unsigned int*) old) = CPU_TYPE_ARM;
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#else
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# warning Missing code for this arch!
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*((unsigned int*) old) = 0;
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#endif
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if (is64bit)
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*((unsigned int*) old) |= CPU_ARCH_ABI64;
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}
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return 0;
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}
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