diff options
| -rw-r--r-- | util/dell-flash-unlock/README.md | 11 | ||||
| -rw-r--r-- | util/dell-flash-unlock/accessors.c | 52 | ||||
| -rw-r--r-- | util/dell-flash-unlock/dell_flash_unlock.c | 5 |
3 files changed, 53 insertions, 15 deletions
diff --git a/util/dell-flash-unlock/README.md b/util/dell-flash-unlock/README.md index aca01743..e179e77c 100644 --- a/util/dell-flash-unlock/README.md +++ b/util/dell-flash-unlock/README.md @@ -20,14 +20,17 @@ around 2008 (E6400 era). If it says it is not set, then you will need to install or compile a kernel with that option set. -### OpenBSD/NetBSD -- On OpenBSD/NetBSD, ensure you are booting with securelevel set to -1. +### OpenBSD/NetBSD/FreeBSD +- The makefile is not currently compatible with POSIX make; install and use GNU + Make (gmake) to build dell-flash-unlock instead of make +- On OpenBSD/NetBSD/FreeBSD, ensure you are booting with securelevel set to -1. ### General Make sure an AC adapter is plugged into your system -Run `make` to compile the utility, and then run `./dell_flash_unlock` with -root/superuser permissions and follow the directions it outputs. +Run `make` (or `gmake` on BSD) to compile the utility, and then run +`./dell_flash_unlock` with root/superuser permissions and follow the directions +it outputs. ## Confirmed supported devices - Latitude E6400, E6500 diff --git a/util/dell-flash-unlock/accessors.c b/util/dell-flash-unlock/accessors.c index a35f8139..0a5df760 100644 --- a/util/dell-flash-unlock/accessors.c +++ b/util/dell-flash-unlock/accessors.c @@ -8,12 +8,22 @@ #if defined(__OpenBSD__) || defined(__NetBSD__) #include <sys/types.h> #include <machine/sysarch.h> +#endif /* __OpenBSD__ || __NetBSD__ */ + +#if defined(__OpenBSD__) #if defined(__amd64__) #include <amd64/pio.h> #elif defined(__i386__) #include <i386/pio.h> #endif /* __i386__ */ -#endif /* __OpenBSD__ || __NetBSD__ */ +#endif /* __OpenBSD__ */ + +#if defined(__FreeBSD__) +#include <fcntl.h> +#include <sys/types.h> +#include <machine/cpufunc.h> +#include <unistd.h> +#endif /* __FreeBSD__ */ #include <errno.h> @@ -39,11 +49,11 @@ sys_outb(unsigned int port, uint8_t data) #if defined(__linux__) outb(data, port); #endif - #if defined(__OpenBSD__) + #if defined(__OpenBSD__) || defined(__FreeBSD__) outb(port, data); #endif #if defined(__NetBSD__) - __asm__ volatile ( "outb %b0, %w1" : : "a"(data), "d"(port) : "memory"); + __asm__ volatile ("outb %b0, %w1" : : "a"(data), "d"(port)); #endif } @@ -53,24 +63,25 @@ sys_outl(unsigned int port, uint32_t data) #if defined(__linux__) outl(data, port); #endif - #if defined(__OpenBSD__) + #if defined(__OpenBSD__) || defined(__FreeBSD__) outl(port, data); #endif #if defined(__NetBSD__) - __asm__ volatile ( "outl %0, %w1" : : "a"(data), "d"(port) : "memory"); + __asm__ volatile ("outl %0, %w1" : : "a"(data), "d"(port)); #endif } uint8_t sys_inb(unsigned int port) { - #if defined(__linux__) || defined (__OpenBSD__) + #if defined(__linux__) || defined (__OpenBSD__) \ + || defined(__FreeBSD__) return inb(port); #endif #if defined(__NetBSD__) uint8_t retval; - __asm__ volatile("inb %w1, %b0" : "=a" (retval) : "d" (port) : "memory"); + __asm__ volatile ("inb %w1, %b0" : "=a" (retval) : "d" (port)); return retval; #endif return 0; @@ -79,12 +90,13 @@ sys_inb(unsigned int port) uint32_t sys_inl(unsigned int port) { - #if defined(__linux__) || defined (__OpenBSD__) + #if defined(__linux__) || defined (__OpenBSD__) \ + || defined(__FreeBSD__) return inl(port); #endif #if defined(__NetBSD__) int retval; - __asm__ volatile("inl %w1, %0" : "=a" (retval) : "d" (port) : "memory"); + __asm__ volatile ("inl %w1, %0" : "=a" (retval) : "d" (port)); return retval; #endif return 0; @@ -112,6 +124,28 @@ sys_iopl(int level) #endif /* __amd64__ */ #endif /* __NetBSD__ */ +#if defined(__FreeBSD__) + /* Refer to io(4) manual page. This assumes the legacy behavior + * where opening /dev/io raises the IOPL of the process */ + static int io_fd = -1; + + /* Requesting privileged access */ + if (level > 0) { + if (io_fd == -1) { + io_fd = open("/dev/io", O_RDONLY); + return (io_fd == -1) ? -1 : 0; + } + /* Lowering access to lowest level */ + } else if (level == 0 && io_fd != -1) { + if (close(io_fd) == -1) { + return -1; + } else { + io_fd = -1; + } + } + return 0; +#endif /* __FreeBSD__ */ + errno = ENOSYS; return -1; } diff --git a/util/dell-flash-unlock/dell_flash_unlock.c b/util/dell-flash-unlock/dell_flash_unlock.c index 174a1c92..d59f5d5b 100644 --- a/util/dell-flash-unlock/dell_flash_unlock.c +++ b/util/dell-flash-unlock/dell_flash_unlock.c @@ -15,7 +15,7 @@ int get_fdo_status(void); int check_lpc_decode(void); -void ec_set_fdo(); +void ec_set_fdo(void); void write_ec_reg(uint8_t index, uint8_t data); void send_ec_cmd(uint8_t cmd); int wait_ec(void); @@ -96,6 +96,7 @@ main(int argc, char *argv[]) "You can now shutdown the system.\n"); } } + sys_iopl(0); return errno; } @@ -141,7 +142,7 @@ check_lpc_decode(void) } void -ec_set_fdo() +ec_set_fdo(void) { /* EC FDO command arguments for reference: * 0 = Query EC FDO status |