Index: stable/4/sys/i386/isa/vesa.c =================================================================== --- stable/4/sys/i386/isa/vesa.c (revision 101766) +++ stable/4/sys/i386/isa/vesa.c (revision 101767) @@ -1,1638 +1,1640 @@ /*- * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith * 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 as * the first lines of this file unmodified. * 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 AUTHORS ``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 AUTHORS 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. * * $FreeBSD$ */ #include "opt_vga.h" #ifndef VGA_NO_MODE_CHANGE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __i386__ #include #else #include #endif #ifndef VESA_DEBUG #define VESA_DEBUG 0 #endif /* VESA video adapter state buffer stub */ struct adp_state { int sig; #define V_STATE_SIG 0x61736576 u_char regs[1]; }; typedef struct adp_state adp_state_t; /* VESA video adapter */ static video_adapter_t *vesa_adp = NULL; static int vesa_state_buf_size = 0; /* VESA functions */ #if 0 static int vesa_nop(void); #endif static int vesa_error(void); static vi_probe_t vesa_probe; static vi_init_t vesa_init; static vi_get_info_t vesa_get_info; static vi_query_mode_t vesa_query_mode; static vi_set_mode_t vesa_set_mode; static vi_save_font_t vesa_save_font; static vi_load_font_t vesa_load_font; static vi_show_font_t vesa_show_font; static vi_save_palette_t vesa_save_palette; static vi_load_palette_t vesa_load_palette; static vi_set_border_t vesa_set_border; static vi_save_state_t vesa_save_state; static vi_load_state_t vesa_load_state; static vi_set_win_org_t vesa_set_origin; static vi_read_hw_cursor_t vesa_read_hw_cursor; static vi_set_hw_cursor_t vesa_set_hw_cursor; static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape; static vi_blank_display_t vesa_blank_display; static vi_mmap_t vesa_mmap; static vi_ioctl_t vesa_ioctl; static vi_clear_t vesa_clear; static vi_fill_rect_t vesa_fill_rect; static vi_bitblt_t vesa_bitblt; static vi_diag_t vesa_diag; static int vesa_bios_info(int level); static struct vm86context vesa_vmcontext; static video_switch_t vesavidsw = { vesa_probe, vesa_init, vesa_get_info, vesa_query_mode, vesa_set_mode, vesa_save_font, vesa_load_font, vesa_show_font, vesa_save_palette, vesa_load_palette, vesa_set_border, vesa_save_state, vesa_load_state, vesa_set_origin, vesa_read_hw_cursor, vesa_set_hw_cursor, vesa_set_hw_cursor_shape, vesa_blank_display, vesa_mmap, vesa_ioctl, vesa_clear, vesa_fill_rect, vesa_bitblt, vesa_error, vesa_error, vesa_diag, }; static video_switch_t *prevvidsw; /* VESA BIOS video modes */ #define VESA_MAXMODES 64 #define EOT (-1) #define NA (-2) #define MODE_TABLE_DELTA 8 static int vesa_vmode_max = 0; static video_info_t vesa_vmode_empty = { EOT }; static video_info_t *vesa_vmode = &vesa_vmode_empty; static int vesa_init_done = FALSE; static int has_vesa_bios = FALSE; static struct vesa_info *vesa_adp_info = NULL; static u_int16_t *vesa_vmodetab = NULL; static char *vesa_oemstr = NULL; static char *vesa_venderstr = NULL; static char *vesa_prodstr = NULL; static char *vesa_revstr = NULL; /* local macros and functions */ #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) static int int10_set_mode(int mode); static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode); static int vesa_bios_set_mode(int mode); static int vesa_bios_get_dac(void); static int vesa_bios_set_dac(int bits); static int vesa_bios_save_palette(int start, int colors, u_char *palette, int bits); static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits); static int vesa_bios_load_palette(int start, int colors, u_char *palette, int bits); #ifdef notyet static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits); #endif #define STATE_SIZE 0 #define STATE_SAVE 1 #define STATE_LOAD 2 #define STATE_HW (1<<0) #define STATE_DATA (1<<1) #define STATE_DAC (1<<2) #define STATE_REG (1<<3) #define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG) #define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG) static int vesa_bios_state_buf_size(void); static int vesa_bios_save_restore(int code, void *p, size_t size); static int vesa_bios_get_line_length(void); static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines); #if 0 static int vesa_bios_get_start(int *x, int *y); #endif static int vesa_bios_set_start(int x, int y); static int vesa_map_gen_mode_num(int type, int color, int mode); static int vesa_translate_flags(u_int16_t vflags); static int vesa_translate_mmodel(u_int8_t vmodel); static void *vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, u_char *buf); static int vesa_bios_init(void); static void vesa_clear_modes(video_info_t *info, int color); static vm_offset_t vesa_map_buffer(u_int paddr, size_t size); static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size); #if 0 static int vesa_get_origin(video_adapter_t *adp, off_t *offset); #endif static void dump_buffer(u_char *buf, size_t len) { int i; for(i = 0; i < len;) { printf("%02x ", buf[i]); if ((++i % 16) == 0) printf("\n"); } } /* INT 10 BIOS calls */ static int int10_set_mode(int mode) { struct vm86frame vmf; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x0000 | mode; vm86_intcall(0x10, &vmf); return 0; } /* VESA BIOS calls */ static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode) { struct vm86frame vmf; u_char *buf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f01; vmf.vmf_ecx = mode; buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bcopy(buf, vmode, sizeof(*vmode)); return 0; } static int vesa_bios_set_mode(int mode) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f02; vmf.vmf_ebx = mode; err = vm86_intcall(0x10, &vmf); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } static int vesa_bios_get_dac(void) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f08; vmf.vmf_ebx = 1; /* get DAC width */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 6; /* XXX */ return ((vmf.vmf_ebx >> 8) & 0x00ff); } static int vesa_bios_set_dac(int bits) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f08; vmf.vmf_ebx = (bits << 8); err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 6; /* XXX */ return ((vmf.vmf_ebx >> 8) & 0x00ff); } static int vesa_bios_save_palette(int start, int colors, u_char *palette, int bits) { struct vm86frame vmf; u_char *p; int err; int i; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 1; /* get primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bits = 8 - bits; for (i = 0; i < colors; ++i) { palette[i*3] = p[i*4 + 2] << bits; palette[i*3 + 1] = p[i*4 + 1] << bits; palette[i*3 + 2] = p[i*4] << bits; } return 0; } static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits) { struct vm86frame vmf; u_char *p; int err; int i; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 1; /* get primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bits = 8 - bits; for (i = 0; i < colors; ++i) { r[i] = p[i*4 + 2] << bits; g[i] = p[i*4 + 1] << bits; b[i] = p[i*4] << bits; } return 0; } static int vesa_bios_load_palette(int start, int colors, u_char *palette, int bits) { struct vm86frame vmf; u_char *p; int err; int i; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); bits = 8 - bits; for (i = 0; i < colors; ++i) { p[i*4] = palette[i*3 + 2] >> bits; p[i*4 + 1] = palette[i*3 + 1] >> bits; p[i*4 + 2] = palette[i*3] >> bits; p[i*4 + 3] = 0; } bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 0; /* set primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } #ifdef notyet static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits) { struct vm86frame vmf; u_char *p; int err; int i; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); bits = 8 - bits; for (i = 0; i < colors; ++i) { p[i*4] = b[i] >> bits; p[i*4 + 1] = g[i] >> bits; p[i*4 + 2] = r[i] >> bits; p[i*4 + 3] = 0; } bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 0; /* set primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } #endif static int vesa_bios_state_buf_size(void) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f04; vmf.vmf_ecx = STATE_MOST; vmf.vmf_edx = STATE_SIZE; err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 0; return vmf.vmf_bx*64; } static int vesa_bios_save_restore(int code, void *p, size_t size) { struct vm86frame vmf; u_char *buf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f04; vmf.vmf_ecx = STATE_MOST; vmf.vmf_edx = code; /* STATE_SAVE/STATE_LOAD */ buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di); bcopy(p, buf, size); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } static int vesa_bios_get_line_length(void) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f06; vmf.vmf_ebx = 1; /* get scan line length */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return -1; return vmf.vmf_bx; /* line length in bytes */ } static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f06; vmf.vmf_ebx = 0; /* set scan line length in pixel */ vmf.vmf_ecx = pixel; err = vm86_intcall(0x10, &vmf); #if VESA_DEBUG > 1 printf("bx:%d, cx:%d, dx:%d\n", vmf.vmf_bx, vmf.vmf_cx, vmf.vmf_dx); #endif if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; if (bytes) *bytes = vmf.vmf_bx; if (lines) *lines = vmf.vmf_dx; return 0; } #if 0 static int vesa_bios_get_start(int *x, int *y) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f07; vmf.vmf_ebx = 1; /* get display start */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; *x = vmf.vmf_cx; *y = vmf.vmf_dx; return 0; } #endif static int vesa_bios_set_start(int x, int y) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f07; vmf.vmf_ebx = 0x80; /* set display start */ vmf.vmf_edx = y; vmf.vmf_ecx = x; err = vm86_intcall(0x10, &vmf); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } /* map a generic video mode to a known mode */ static int vesa_map_gen_mode_num(int type, int color, int mode) { static struct { int from; int to; } mode_map[] = { { M_TEXT_132x25, M_VESA_C132x25 }, { M_TEXT_132x43, M_VESA_C132x43 }, { M_TEXT_132x50, M_VESA_C132x50 }, { M_TEXT_132x60, M_VESA_C132x60 }, }; int i; for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { if (mode_map[i].from == mode) return mode_map[i].to; } return mode; } static int vesa_translate_flags(u_int16_t vflags) { static struct { u_int16_t mask; int set; int reset; } ftable[] = { { V_MODECOLOR, V_INFO_COLOR, 0 }, { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, { V_MODELFB, V_INFO_LINEAR, 0 }, }; int flags; int i; for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { flags |= (vflags & ftable[i].mask) ? ftable[i].set : ftable[i].reset; } return flags; } static int vesa_translate_mmodel(u_int8_t vmodel) { static struct { u_int8_t vmodel; int mmodel; } mtable[] = { { V_MMTEXT, V_INFO_MM_TEXT }, { V_MMCGA, V_INFO_MM_CGA }, { V_MMHGC, V_INFO_MM_HGC }, { V_MMEGA, V_INFO_MM_PLANAR }, { V_MMPACKED, V_INFO_MM_PACKED }, { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, }; int i; for (i = 0; mtable[i].mmodel >= 0; ++i) { if (mtable[i].vmodel == vmodel) return mtable[i].mmodel; } return V_INFO_MM_OTHER; } static void *vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, u_char *buf) { if (p == 0) return NULL; if (((p >> 16) == seg) && ((p & 0xffff) >= off)) return (void *)(buf + ((p & 0xffff) - off)); else { p = BIOS_SADDRTOLADDR(p); return (void *)BIOS_PADDRTOVADDR(p); } } static int vesa_bios_init(void) { static u_char buf[512]; struct vm86frame vmf; struct vesa_mode vmode; video_info_t *p; u_char *vmbuf; int modes; int err; int i; if (vesa_init_done) return 0; has_vesa_bios = FALSE; vesa_adp_info = NULL; vesa_vmode_max = 0; vesa_vmode[0].vi_mode = EOT; vmbuf = (u_char *)vm86_addpage(&vesa_vmcontext, 1, 0); bzero(&vmf, sizeof(vmf)); /* paranoia */ bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ vmf.vmf_eax = 0x4f00; vm86_getptr(&vesa_vmcontext, (vm_offset_t)vmbuf, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f) || bcmp("VESA", vmbuf, 4)) return 1; bcopy(vmbuf, buf, sizeof(buf)); vesa_adp_info = (struct vesa_info *)buf; if (bootverbose) { printf("VESA: information block\n"); dump_buffer(buf, 64); } if (vesa_adp_info->v_flags & V_NONVGA) return 1; if (vesa_adp_info->v_version < 0x0102) { printf("VESA: VBE version %d.%d is not supported; " "version 1.2 or later is required.\n", ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 + ((vesa_adp_info->v_version & 0x0f00) >> 8), ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 + (vesa_adp_info->v_version & 0x000f)); return 1; } /* fix string ptrs */ vesa_oemstr = (char *)vesa_fix_ptr(vesa_adp_info->v_oemstr, vmf.vmf_es, vmf.vmf_di, buf); if (vesa_adp_info->v_version >= 0x0200) { vesa_venderstr = (char *)vesa_fix_ptr(vesa_adp_info->v_venderstr, vmf.vmf_es, vmf.vmf_di, buf); vesa_prodstr = (char *)vesa_fix_ptr(vesa_adp_info->v_prodstr, vmf.vmf_es, vmf.vmf_di, buf); vesa_revstr = (char *)vesa_fix_ptr(vesa_adp_info->v_revstr, vmf.vmf_es, vmf.vmf_di, buf); } /* obtain video mode information */ vesa_vmodetab = (u_int16_t *)vesa_fix_ptr(vesa_adp_info->v_modetable, vmf.vmf_es, vmf.vmf_di, buf); if (vesa_vmodetab == NULL) return 1; for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && (vesa_vmodetab[i] != 0xffff); ++i) { if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) continue; /* reject unsupported modes */ #if 0 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) != (V_MODESUPP | V_MODEOPTINFO)) continue; #else if ((vmode.v_modeattr & (V_MODEOPTINFO | V_MODENONVGA)) != (V_MODEOPTINFO)) continue; #endif /* expand the array if necessary */ if (modes >= vesa_vmode_max) { vesa_vmode_max += MODE_TABLE_DELTA; p = malloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1), M_DEVBUF, M_WAITOK); #if VESA_DEBUG > 1 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", modes, vesa_vmode_max); #endif if (modes > 0) { bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); free(vesa_vmode, M_DEVBUF); } vesa_vmode = p; } /* copy some fields */ bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; vesa_vmode[modes].vi_width = vmode.v_width; vesa_vmode[modes].vi_height = vmode.v_height; vesa_vmode[modes].vi_depth = vmode.v_bpp; vesa_vmode[modes].vi_planes = vmode.v_planes; vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; vesa_vmode[modes].vi_cheight = vmode.v_cheight; vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4; /* XXX window B */ vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024; vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024; if (vmode.v_modeattr & V_MODELFB) vesa_vmode[modes].vi_buffer = vmode.v_lfb; else vesa_vmode[modes].vi_buffer = 0; /* XXX */ vesa_vmode[modes].vi_buffer_size = vesa_adp_info->v_memsize*64*1024; #if 0 if (vmode.v_offscreen > vmode.v_lfb) vesa_vmode[modes].vi_buffer_size = vmode.v_offscreen + vmode.v_offscreensize*1024 - vmode.v_lfb; else vesa_vmode[modes].vi_buffer_size = vmode.v_offscreen + vmode.v_offscreensize*1024 #endif vesa_vmode[modes].vi_mem_model = vesa_translate_mmodel(vmode.v_memmodel); vesa_vmode[modes].vi_pixel_fields[0] = 0; vesa_vmode[modes].vi_pixel_fields[1] = 0; vesa_vmode[modes].vi_pixel_fields[2] = 0; vesa_vmode[modes].vi_pixel_fields[3] = 0; vesa_vmode[modes].vi_pixel_fsizes[0] = 0; vesa_vmode[modes].vi_pixel_fsizes[1] = 0; vesa_vmode[modes].vi_pixel_fsizes[2] = 0; vesa_vmode[modes].vi_pixel_fsizes[3] = 0; if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) { vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) { vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; vesa_vmode[modes].vi_pixel_fields[0] = vmode.v_redfieldpos; vesa_vmode[modes].vi_pixel_fields[1] = vmode.v_greenfieldpos; vesa_vmode[modes].vi_pixel_fields[2] = vmode.v_bluefieldpos; vesa_vmode[modes].vi_pixel_fields[3] = vmode.v_resfieldpos; vesa_vmode[modes].vi_pixel_fsizes[0] = vmode.v_redmasksize; vesa_vmode[modes].vi_pixel_fsizes[1] = vmode.v_greenmasksize; vesa_vmode[modes].vi_pixel_fsizes[2] = vmode.v_bluemasksize; vesa_vmode[modes].vi_pixel_fsizes[3] = vmode.v_resmasksize; } else { vesa_vmode[modes].vi_pixel_size = 0; } vesa_vmode[modes].vi_flags = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; ++modes; } vesa_vmode[modes].vi_mode = EOT; if (bootverbose) printf("VESA: %d mode(s) found\n", modes); has_vesa_bios = (modes > 0); return (has_vesa_bios ? 0 : 1); } static void vesa_clear_modes(video_info_t *info, int color) { while (info->vi_mode != EOT) { if ((info->vi_flags & V_INFO_COLOR) != color) info->vi_mode = NA; ++info; } } static vm_offset_t vesa_map_buffer(u_int paddr, size_t size) { vm_offset_t vaddr; u_int off; off = paddr - trunc_page(paddr); vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off); #if VESA_DEBUG > 1 printf("vesa_map_buffer: paddr:%x vaddr:%x size:%x off:%x\n", paddr, vaddr, size, off); #endif return (vaddr + off); } static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size) { #if VESA_DEBUG > 1 printf("vesa_unmap_buffer: vaddr:%x size:%x\n", vaddr, size); #endif kmem_free(kernel_map, vaddr, size); } /* entry points */ static int vesa_configure(int flags) { video_adapter_t *adp; int adapters; int error; int i; if (vesa_init_done) return 0; if (flags & VIO_PROBE_ONLY) return 0; /* XXX */ /* * If the VESA module has already been loaded, abort loading * the module this time. */ for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { if (adp->va_flags & V_ADP_VESA) return ENXIO; if (adp->va_type == KD_VGA) break; } /* * The VGA adapter is not found. This is because either * 1) the VGA driver has not been initialized, or 2) the VGA card * is not present. If 1) is the case, we shall defer * initialization for now and try again later. */ if (adp == NULL) { vga_sub_configure = vesa_configure; return ENODEV; } /* count number of registered adapters */ for (++i; vid_get_adapter(i) != NULL; ++i) ; adapters = i; /* call VESA BIOS */ vesa_adp = adp; if (vesa_bios_init()) { vesa_adp = NULL; return ENXIO; } vesa_adp->va_flags |= V_ADP_VESA; /* remove conflicting modes if we have more than one adapter */ if (adapters > 1) { vesa_clear_modes(vesa_vmode, (vesa_adp->va_flags & V_ADP_COLOR) ? V_INFO_COLOR : 0); } if ((error = vesa_load_ioctl()) == 0) { prevvidsw = vidsw[vesa_adp->va_index]; vidsw[vesa_adp->va_index] = &vesavidsw; vesa_init_done = TRUE; } else { vesa_adp = NULL; return error; } return 0; } #if 0 static int vesa_nop(void) { return 0; } #endif static int vesa_error(void) { return 1; } static int vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) { return (*prevvidsw->probe)(unit, adpp, arg, flags); } static int vesa_init(int unit, video_adapter_t *adp, int flags) { return (*prevvidsw->init)(unit, adp, flags); } static int vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) { int i; if ((*prevvidsw->get_info)(adp, mode, info) == 0) return 0; if (adp != vesa_adp) return 1; mode = vesa_map_gen_mode_num(vesa_adp->va_type, vesa_adp->va_flags & V_ADP_COLOR, mode); for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { if (vesa_vmode[i].vi_mode == NA) continue; if (vesa_vmode[i].vi_mode == mode) { *info = vesa_vmode[i]; return 0; } } return 1; } static int vesa_query_mode(video_adapter_t *adp, video_info_t *info) { int i; if ((*prevvidsw->query_mode)(adp, info) == 0) return 0; if (adp != vesa_adp) return ENODEV; for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { if ((info->vi_width != 0) && (info->vi_width != vesa_vmode[i].vi_width)) continue; if ((info->vi_height != 0) && (info->vi_height != vesa_vmode[i].vi_height)) continue; if ((info->vi_cwidth != 0) && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) continue; if ((info->vi_cheight != 0) && (info->vi_cheight != vesa_vmode[i].vi_cheight)) continue; if ((info->vi_depth != 0) && (info->vi_depth != vesa_vmode[i].vi_depth)) continue; if ((info->vi_planes != 0) && (info->vi_planes != vesa_vmode[i].vi_planes)) continue; /* pixel format, memory model */ if ((info->vi_flags != 0) && (info->vi_flags != vesa_vmode[i].vi_flags)) continue; *info = vesa_vmode[i]; return 0; } return ENODEV; } static int vesa_set_mode(video_adapter_t *adp, int mode) { video_info_t info; int len; if (adp != vesa_adp) return (*prevvidsw->set_mode)(adp, mode); mode = vesa_map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); #if VESA_DEBUG > 0 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", adp->va_mode, adp->va_mode, mode, mode); #endif /* * If the current mode is a VESA mode and the new mode is not, * restore the state of the adapter first by setting one of the * standard VGA mode, so that non-standard, extended SVGA registers * are set to the state compatible with the standard VGA modes. * Otherwise (*prevvidsw->set_mode)() may not be able to set up * the new mode correctly. */ if (VESA_MODE(adp->va_mode)) { if ((*prevvidsw->get_info)(adp, mode, &info) == 0) { int10_set_mode(adp->va_initial_bios_mode); if (adp->va_info.vi_flags & V_INFO_LINEAR) vesa_unmap_buffer(adp->va_buffer, vesa_adp_info->v_memsize*64*1024); /* * Once (*prevvidsw->get_info)() succeeded, * (*prevvidsw->set_mode)() below won't fail... */ } } /* we may not need to handle this mode after all... */ if ((*prevvidsw->set_mode)(adp, mode) == 0) return 0; /* is the new mode supported? */ if (vesa_get_info(adp, mode, &info)) return 1; /* assert(VESA_MODE(mode)); */ #if VESA_DEBUG > 0 printf("VESA: about to set a VESA mode...\n"); #endif /* don't use the linear frame buffer for text modes. XXX */ if (!(info.vi_flags & V_INFO_GRAPHICS)) info.vi_flags &= ~V_INFO_LINEAR; if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0))) return 1; if (adp->va_info.vi_flags & V_INFO_LINEAR) vesa_unmap_buffer(adp->va_buffer, vesa_adp_info->v_memsize*64*1024); #if VESA_DEBUG > 0 printf("VESA: mode set!\n"); #endif vesa_adp->va_mode = mode; vesa_adp->va_flags &= ~V_ADP_COLOR; vesa_adp->va_flags |= (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; vesa_adp->va_crtc_addr = (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; if (info.vi_flags & V_INFO_LINEAR) { #if VESA_DEBUG > 1 printf("VESA: setting up LFB\n"); #endif vesa_adp->va_buffer = vesa_map_buffer(info.vi_buffer, vesa_adp_info->v_memsize*64*1024); vesa_adp->va_buffer_size = info.vi_buffer_size; vesa_adp->va_window = vesa_adp->va_buffer; vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes; vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes; } else { vesa_adp->va_buffer = 0; vesa_adp->va_buffer_size = info.vi_buffer_size; vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window); vesa_adp->va_window_size = info.vi_window_size; vesa_adp->va_window_gran = info.vi_window_gran; } vesa_adp->va_window_orig = 0; len = vesa_bios_get_line_length(); if (len > 0) { vesa_adp->va_line_width = len; } else if (info.vi_flags & V_INFO_GRAPHICS) { switch (info.vi_depth/info.vi_planes) { case 1: vesa_adp->va_line_width = info.vi_width/8; break; case 2: vesa_adp->va_line_width = info.vi_width/4; break; case 4: vesa_adp->va_line_width = info.vi_width/2; break; case 8: default: /* shouldn't happen */ vesa_adp->va_line_width = info.vi_width; break; } } else { vesa_adp->va_line_width = info.vi_width; } vesa_adp->va_disp_start.x = 0; vesa_adp->va_disp_start.y = 0; #if VESA_DEBUG > 0 printf("vesa_set_mode(): vi_width:%d, len:%d, line_width:%d\n", info.vi_width, len, vesa_adp->va_line_width); #endif bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); /* move hardware cursor out of the way */ (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); return 0; } static int vesa_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, int ch, int count) { return (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count); } static int vesa_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, int ch, int count) { return (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count); } static int vesa_show_font(video_adapter_t *adp, int page) { return (*prevvidsw->show_font)(adp, page); } static int vesa_save_palette(video_adapter_t *adp, u_char *palette) { int bits; int error; if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) && VESA_MODE(adp->va_mode)) { bits = vesa_bios_get_dac(); error = vesa_bios_save_palette(0, 256, palette, bits); if (error == 0) return 0; if (bits != 6) return error; } return (*prevvidsw->save_palette)(adp, palette); } static int vesa_load_palette(video_adapter_t *adp, u_char *palette) { #if notyet int bits; int error; if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) && VESA_MODE(adp->va_mode) && ((bits = vesa_bios_set_dac(8)) > 6)) { error = vesa_bios_load_palette(0, 256, palette, bits); if (error == 0) return 0; if (vesa_bios_set_dac(6) != 6) return 1; } #endif /* notyet */ return (*prevvidsw->load_palette)(adp, palette); } static int vesa_set_border(video_adapter_t *adp, int color) { return (*prevvidsw->set_border)(adp, color); } static int vesa_save_state(video_adapter_t *adp, void *p, size_t size) { if (adp != vesa_adp) return (*prevvidsw->save_state)(adp, p, size); if (vesa_state_buf_size == 0) vesa_state_buf_size = vesa_bios_state_buf_size(); if (size == 0) return (sizeof(int) + vesa_state_buf_size); else if (size < (sizeof(int) + vesa_state_buf_size)) return 1; ((adp_state_t *)p)->sig = V_STATE_SIG; bzero(((adp_state_t *)p)->regs, vesa_state_buf_size); return vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs, vesa_state_buf_size); } static int vesa_load_state(video_adapter_t *adp, void *p) { if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG)) return (*prevvidsw->load_state)(adp, p); return vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs, vesa_state_buf_size); } #if 0 static int vesa_get_origin(video_adapter_t *adp, off_t *offset) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f05; vmf.vmf_ebx = 0x10; /* WINDOW_A, XXX */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; *offset = vmf.vmf_dx*adp->va_window_gran; return 0; } #endif static int vesa_set_origin(video_adapter_t *adp, off_t offset) { struct vm86frame vmf; int err; /* * This function should return as quickly as possible to * maintain good performance of the system. For this reason, * error checking is kept minimal and let the VESA BIOS to * detect error. */ if (adp != vesa_adp) return (*prevvidsw->set_win_org)(adp, offset); /* if this is a linear frame buffer, do nothing */ if (adp->va_info.vi_flags & V_INFO_LINEAR) return 0; /* XXX */ if (adp->va_window_gran == 0) return 1; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f05; vmf.vmf_ebx = 0; /* WINDOW_A, XXX */ vmf.vmf_edx = offset/adp->va_window_gran; err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f05; vmf.vmf_ebx = 1; /* WINDOW_B, XXX */ vmf.vmf_edx = offset/adp->va_window_gran; err = vm86_intcall(0x10, &vmf); adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; return 0; /* XXX */ } static int vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) { return (*prevvidsw->read_hw_cursor)(adp, col, row); } static int vesa_set_hw_cursor(video_adapter_t *adp, int col, int row) { return (*prevvidsw->set_hw_cursor)(adp, col, row); } static int vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, int celsize, int blink) { return (*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, blink); } static int vesa_blank_display(video_adapter_t *adp, int mode) { /* XXX: use VESA DPMS */ return (*prevvidsw->blank_display)(adp, mode); } static int vesa_mmap(video_adapter_t *adp, vm_offset_t offset, int prot) { #if VESA_DEBUG > 0 printf("vesa_mmap(): window:0x%x, buffer:0x%x, offset:0x%x\n", adp->va_info.vi_window, adp->va_info.vi_buffer, offset); #endif if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR)) { /* va_window_size == va_buffer_size/vi_planes */ /* XXX: is this correct? */ if (offset > adp->va_window_size - PAGE_SIZE) return -1; #ifdef __i386__ return i386_btop(adp->va_info.vi_buffer + offset); #endif #ifdef __alpha__ /* XXX */ return alpha_btop(adp->va_info.vi_buffer + offset); #endif } else { return (*prevvidsw->mmap)(adp, offset, prot); } } static int vesa_clear(video_adapter_t *adp) { return (*prevvidsw->clear)(adp); } static int vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) { return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy); } static int vesa_bitblt(video_adapter_t *adp,...) { /* FIXME */ return 1; } static int get_palette(video_adapter_t *adp, int base, int count, u_char *red, u_char *green, u_char *blue, u_char *trans) { u_char *r; u_char *g; u_char *b; int bits; int error; - if ((base < 0) || (base >= 256) || (base + count > 256)) + if ((base < 0) || (base >= 256) || (count < 0) || (count > 256)) + return 1; + if (base + count > 256) return 1; if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode)) return 1; bits = vesa_bios_get_dac(); if (bits <= 6) return 1; r = malloc(count*3, M_DEVBUF, M_WAITOK); g = r + count; b = g + count; error = vesa_bios_save_palette2(base, count, r, g, b, bits); if (error == 0) { copyout(r, red, count); copyout(g, green, count); copyout(b, blue, count); if (trans != NULL) { bzero(r, count); copyout(r, trans, count); } } free(r, M_DEVBUF); /* if error && bits != 6 at this point, we are in in trouble... XXX */ return error; } static int set_palette(video_adapter_t *adp, int base, int count, u_char *red, u_char *green, u_char *blue, u_char *trans) { return 1; #if notyet u_char *r; u_char *g; u_char *b; int bits; int error; if ((base < 0) || (base >= 256) || (base + count > 256)) return 1; if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode) || ((bits = vesa_bios_set_dac(8)) <= 6)) return 1; r = malloc(count*3, M_DEVBUF, M_WAITOK); g = r + count; b = g + count; copyin(red, r, count); copyin(green, g, count); copyin(blue, b, count); error = vesa_bios_load_palette2(base, count, r, g, b, bits); free(r, M_DEVBUF); if (error == 0) return 0; /* if the following call fails, we are in trouble... XXX */ vesa_bios_set_dac(6); return 1; #endif /* notyet */ } static int vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) { int bytes; if (adp != vesa_adp) return (*prevvidsw->ioctl)(adp, cmd, arg); switch (cmd) { case FBIO_SETWINORG: /* set frame buffer window origin */ if (!VESA_MODE(adp->va_mode)) return (*prevvidsw->ioctl)(adp, cmd, arg); return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); case FBIO_SETDISPSTART: /* set display start address */ if (!VESA_MODE(adp->va_mode)) return (*prevvidsw->ioctl)(adp, cmd, arg); if (vesa_bios_set_start(((video_display_start_t *)arg)->x, ((video_display_start_t *)arg)->y)) return ENODEV; adp->va_disp_start.x = ((video_display_start_t *)arg)->x; adp->va_disp_start.y = ((video_display_start_t *)arg)->y; return 0; case FBIO_SETLINEWIDTH: /* set line length in pixel */ if (!VESA_MODE(adp->va_mode)) return (*prevvidsw->ioctl)(adp, cmd, arg); if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL)) return ENODEV; adp->va_line_width = bytes; #if VESA_DEBUG > 1 printf("new line width:%d\n", adp->va_line_width); #endif return 0; case FBIO_GETPALETTE: /* get color palette */ if (get_palette(adp, ((video_color_palette_t *)arg)->index, ((video_color_palette_t *)arg)->count, ((video_color_palette_t *)arg)->red, ((video_color_palette_t *)arg)->green, ((video_color_palette_t *)arg)->blue, ((video_color_palette_t *)arg)->transparent)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; case FBIO_SETPALETTE: /* set color palette */ if (set_palette(adp, ((video_color_palette_t *)arg)->index, ((video_color_palette_t *)arg)->count, ((video_color_palette_t *)arg)->red, ((video_color_palette_t *)arg)->green, ((video_color_palette_t *)arg)->blue, ((video_color_palette_t *)arg)->transparent)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; case FBIOGETCMAP: /* get color palette */ if (get_palette(adp, ((struct fbcmap *)arg)->index, ((struct fbcmap *)arg)->count, ((struct fbcmap *)arg)->red, ((struct fbcmap *)arg)->green, ((struct fbcmap *)arg)->blue, NULL)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; case FBIOPUTCMAP: /* set color palette */ if (set_palette(adp, ((struct fbcmap *)arg)->index, ((struct fbcmap *)arg)->count, ((struct fbcmap *)arg)->red, ((struct fbcmap *)arg)->green, ((struct fbcmap *)arg)->blue, NULL)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; default: return (*prevvidsw->ioctl)(adp, cmd, arg); } } static int vesa_diag(video_adapter_t *adp, int level) { int error; /* call the previous handler first */ error = (*prevvidsw->diag)(adp, level); if (error) return error; if (adp != vesa_adp) return 1; if (level <= 0) return 0; return 0; } static int vesa_bios_info(int level) { #if VESA_DEBUG > 1 struct vesa_mode vmode; int i; #endif /* general adapter information */ printf("VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 + ((vesa_adp_info->v_version & 0x0f00) >> 8), ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 + (vesa_adp_info->v_version & 0x000f), vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, vesa_vmodetab, vesa_adp_info->v_modetable); /* OEM string */ if (vesa_oemstr != NULL) printf("VESA: %s\n", vesa_oemstr); if (level <= 0) return 0; if (vesa_adp_info->v_version >= 0x0200) { /* vender name, product name, product revision */ printf("VESA: %s %s %s\n", (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", (vesa_revstr != NULL) ? vesa_revstr : "?"); } #if VESA_DEBUG > 1 /* mode information */ for (i = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && (vesa_vmodetab[i] != 0xffff); ++i) { if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) continue; /* print something for diagnostic purpose */ printf("VESA: mode:0x%03x, flags:0x%04x", vesa_vmodetab[i], vmode.v_modeattr); if (vmode.v_modeattr & V_MODEOPTINFO) { if (vmode.v_modeattr & V_MODEGRAPHICS) { printf(", G %dx%dx%d %d, ", vmode.v_width, vmode.v_height, vmode.v_bpp, vmode.v_planes); } else { printf(", T %dx%d, ", vmode.v_width, vmode.v_height); } printf("font:%dx%d, ", vmode.v_cwidth, vmode.v_cheight); printf("pages:%d, mem:%d", vmode.v_ipages + 1, vmode.v_memmodel); } if (vmode.v_modeattr & V_MODELFB) { printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", vmode.v_lfb, vmode.v_offscreen, vmode.v_offscreensize*1024); } printf("\n"); printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", vmode.v_waseg, vmode.v_waattr, vmode.v_wbseg, vmode.v_wbattr); printf("size:%dk, gran:%dk\n", vmode.v_wsize, vmode.v_wgran); } #endif /* VESA_DEBUG > 1 */ return 0; } /* module loading */ static int vesa_load(void) { int error; int s; if (vesa_init_done) return 0; /* locate a VGA adapter */ s = spltty(); vesa_adp = NULL; error = vesa_configure(0); splx(s); if (error == 0) vesa_bios_info(bootverbose); return error; } static int vesa_unload(void) { u_char palette[256*3]; int error; int bits; int s; /* if the adapter is currently in a VESA mode, don't unload */ if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) return EBUSY; /* * FIXME: if there is at least one vty which is in a VESA mode, * we shouldn't be unloading! XXX */ s = spltty(); if ((error = vesa_unload_ioctl()) == 0) { if (vesa_adp != NULL) { if (vesa_adp_info->v_flags & V_DAC8) { bits = vesa_bios_get_dac(); if (bits > 6) { vesa_bios_save_palette(0, 256, palette, bits); vesa_bios_set_dac(6); vesa_bios_load_palette(0, 256, palette, 6); } } vesa_adp->va_flags &= ~V_ADP_VESA; vidsw[vesa_adp->va_index] = prevvidsw; } } splx(s); return error; } static int vesa_mod_event(module_t mod, int type, void *data) { switch (type) { case MOD_LOAD: return vesa_load(); case MOD_UNLOAD: return vesa_unload(); default: break; } return 0; } static moduledata_t vesa_mod = { "vesa", vesa_mod_event, NULL, }; DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); #endif /* VGA_NO_MODE_CHANGE */ Index: stable/4/sys/kern/uipc_syscalls.c =================================================================== --- stable/4/sys/kern/uipc_syscalls.c (revision 101766) +++ stable/4/sys/kern/uipc_syscalls.c (revision 101767) @@ -1,1882 +1,1892 @@ /* * Copyright (c) 1982, 1986, 1989, 1990, 1993 * The Regents of the University of California. All rights reserved. * * sendfile(2) and related extensions: * Copyright (c) 1998, David Greenman. 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * * @(#)uipc_syscalls.c 8.4 (Berkeley) 2/21/94 * $FreeBSD$ */ #include "opt_compat.h" #include "opt_ktrace.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef KTRACE #include #endif #include #include #include #include #include #include static void sf_buf_init(void *arg); SYSINIT(sock_sf, SI_SUB_MBUF, SI_ORDER_ANY, sf_buf_init, NULL) static struct sf_buf *sf_buf_alloc(void); static void sf_buf_ref(caddr_t addr, u_int size); static void sf_buf_free(caddr_t addr, u_int size); static int sendit __P((struct proc *p, int s, struct msghdr *mp, int flags)); static int recvit __P((struct proc *p, int s, struct msghdr *mp, caddr_t namelenp)); static int accept1 __P((struct proc *p, struct accept_args *uap, int compat)); static int do_sendfile __P((struct proc *p, struct sendfile_args *uap, int compat)); static int getsockname1 __P((struct proc *p, struct getsockname_args *uap, int compat)); static int getpeername1 __P((struct proc *p, struct getpeername_args *uap, int compat)); static SLIST_HEAD(, sf_buf) sf_freelist; static vm_offset_t sf_base; static struct sf_buf *sf_bufs; static int sf_buf_alloc_want; /* * System call interface to the socket abstraction. */ #if defined(COMPAT_43) || defined(COMPAT_SUNOS) #define COMPAT_OLDSOCK #endif extern struct fileops socketops; int socket(p, uap) struct proc *p; register struct socket_args /* { int domain; int type; int protocol; } */ *uap; { struct filedesc *fdp = p->p_fd; struct socket *so; struct file *fp; int fd, error; error = falloc(p, &fp, &fd); if (error) return (error); fhold(fp); error = socreate(uap->domain, &so, uap->type, uap->protocol, p); if (error) { if (fdp->fd_ofiles[fd] == fp) { fdp->fd_ofiles[fd] = NULL; fdrop(fp, p); } } else { fp->f_data = (caddr_t)so; fp->f_flag = FREAD|FWRITE; fp->f_ops = &socketops; fp->f_type = DTYPE_SOCKET; p->p_retval[0] = fd; } fdrop(fp, p); return (error); } /* ARGSUSED */ int bind(p, uap) struct proc *p; register struct bind_args /* { int s; caddr_t name; int namelen; } */ *uap; { struct file *fp; struct sockaddr *sa; int error; error = holdsock(p->p_fd, uap->s, &fp); if (error) return (error); error = getsockaddr(&sa, uap->name, uap->namelen); if (error) { fdrop(fp, p); return (error); } error = sobind((struct socket *)fp->f_data, sa, p); FREE(sa, M_SONAME); fdrop(fp, p); return (error); } /* ARGSUSED */ int listen(p, uap) struct proc *p; register struct listen_args /* { int s; int backlog; } */ *uap; { struct file *fp; int error; error = holdsock(p->p_fd, uap->s, &fp); if (error) return (error); error = solisten((struct socket *)fp->f_data, uap->backlog, p); fdrop(fp, p); return(error); } static int accept1(p, uap, compat) struct proc *p; register struct accept_args /* { int s; caddr_t name; int *anamelen; } */ *uap; int compat; { struct filedesc *fdp = p->p_fd; struct file *lfp = NULL; struct file *nfp = NULL; struct sockaddr *sa; int namelen, error, s; struct socket *head, *so; int fd; short fflag; /* type must match fp->f_flag */ if (uap->name) { error = copyin((caddr_t)uap->anamelen, (caddr_t)&namelen, sizeof (namelen)); if(error) return (error); + if (namelen < 0) + return (EINVAL); } error = holdsock(fdp, uap->s, &lfp); if (error) return (error); s = splnet(); head = (struct socket *)lfp->f_data; if ((head->so_options & SO_ACCEPTCONN) == 0) { splx(s); error = EINVAL; goto done; } if ((head->so_state & SS_NBIO) && TAILQ_EMPTY(&head->so_comp)) { splx(s); error = EWOULDBLOCK; goto done; } while (TAILQ_EMPTY(&head->so_comp) && head->so_error == 0) { if (head->so_state & SS_CANTRCVMORE) { head->so_error = ECONNABORTED; break; } error = tsleep((caddr_t)&head->so_timeo, PSOCK | PCATCH, "accept", 0); if (error) { splx(s); goto done; } } if (head->so_error) { error = head->so_error; head->so_error = 0; splx(s); goto done; } /* * At this point we know that there is at least one connection * ready to be accepted. Remove it from the queue prior to * allocating the file descriptor for it since falloc() may * block allowing another process to accept the connection * instead. */ so = TAILQ_FIRST(&head->so_comp); TAILQ_REMOVE(&head->so_comp, so, so_list); head->so_qlen--; fflag = lfp->f_flag; error = falloc(p, &nfp, &fd); if (error) { /* * Probably ran out of file descriptors. Put the * unaccepted connection back onto the queue and * do another wakeup so some other process might * have a chance at it. */ TAILQ_INSERT_HEAD(&head->so_comp, so, so_list); head->so_qlen++; wakeup_one(&head->so_timeo); splx(s); goto done; } fhold(nfp); p->p_retval[0] = fd; /* connection has been removed from the listen queue */ KNOTE(&head->so_rcv.sb_sel.si_note, 0); so->so_state &= ~SS_COMP; so->so_head = NULL; if (head->so_sigio != NULL) fsetown(fgetown(head->so_sigio), &so->so_sigio); nfp->f_data = (caddr_t)so; nfp->f_flag = fflag; nfp->f_ops = &socketops; nfp->f_type = DTYPE_SOCKET; sa = 0; error = soaccept(so, &sa); if (error) { /* * return a namelen of zero for older code which might * ignore the return value from accept. */ if (uap->name != NULL) { namelen = 0; (void) copyout((caddr_t)&namelen, (caddr_t)uap->anamelen, sizeof(*uap->anamelen)); } goto noconnection; } if (sa == NULL) { namelen = 0; if (uap->name) goto gotnoname; splx(s); error = 0; goto done; } if (uap->name) { /* check sa_len before it is destroyed */ if (namelen > sa->sa_len) namelen = sa->sa_len; #ifdef COMPAT_OLDSOCK if (compat) ((struct osockaddr *)sa)->sa_family = sa->sa_family; #endif error = copyout(sa, (caddr_t)uap->name, (u_int)namelen); if (!error) gotnoname: error = copyout((caddr_t)&namelen, (caddr_t)uap->anamelen, sizeof (*uap->anamelen)); } noconnection: if (sa) FREE(sa, M_SONAME); /* * close the new descriptor, assuming someone hasn't ripped it * out from under us. */ if (error) { if (fdp->fd_ofiles[fd] == nfp) { fdp->fd_ofiles[fd] = NULL; fdrop(nfp, p); } } splx(s); /* * Release explicitly held references before returning. */ done: if (nfp != NULL) fdrop(nfp, p); fdrop(lfp, p); return (error); } int accept(p, uap) struct proc *p; struct accept_args *uap; { return (accept1(p, uap, 0)); } #ifdef COMPAT_OLDSOCK int oaccept(p, uap) struct proc *p; struct accept_args *uap; { return (accept1(p, uap, 1)); } #endif /* COMPAT_OLDSOCK */ /* ARGSUSED */ int connect(p, uap) struct proc *p; register struct connect_args /* { int s; caddr_t name; int namelen; } */ *uap; { struct file *fp; register struct socket *so; struct sockaddr *sa; int error, s; error = holdsock(p->p_fd, uap->s, &fp); if (error) return (error); so = (struct socket *)fp->f_data; if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { error = EALREADY; goto done; } error = getsockaddr(&sa, uap->name, uap->namelen); if (error) goto done; error = soconnect(so, sa, p); if (error) goto bad; if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { FREE(sa, M_SONAME); error = EINPROGRESS; goto done; } s = splnet(); while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) { error = tsleep((caddr_t)&so->so_timeo, PSOCK | PCATCH, "connec", 0); if (error) break; } if (error == 0) { error = so->so_error; so->so_error = 0; } splx(s); bad: so->so_state &= ~SS_ISCONNECTING; FREE(sa, M_SONAME); if (error == ERESTART) error = EINTR; done: fdrop(fp, p); return (error); } int socketpair(p, uap) struct proc *p; register struct socketpair_args /* { int domain; int type; int protocol; int *rsv; } */ *uap; { register struct filedesc *fdp = p->p_fd; struct file *fp1, *fp2; struct socket *so1, *so2; int fd, error, sv[2]; error = socreate(uap->domain, &so1, uap->type, uap->protocol, p); if (error) return (error); error = socreate(uap->domain, &so2, uap->type, uap->protocol, p); if (error) goto free1; error = falloc(p, &fp1, &fd); if (error) goto free2; fhold(fp1); sv[0] = fd; fp1->f_data = (caddr_t)so1; error = falloc(p, &fp2, &fd); if (error) goto free3; fhold(fp2); fp2->f_data = (caddr_t)so2; sv[1] = fd; error = soconnect2(so1, so2); if (error) goto free4; if (uap->type == SOCK_DGRAM) { /* * Datagram socket connection is asymmetric. */ error = soconnect2(so2, so1); if (error) goto free4; } fp1->f_flag = fp2->f_flag = FREAD|FWRITE; fp1->f_ops = fp2->f_ops = &socketops; fp1->f_type = fp2->f_type = DTYPE_SOCKET; error = copyout((caddr_t)sv, (caddr_t)uap->rsv, 2 * sizeof (int)); fdrop(fp1, p); fdrop(fp2, p); return (error); free4: if (fdp->fd_ofiles[sv[1]] == fp2) { fdp->fd_ofiles[sv[1]] = NULL; fdrop(fp2, p); } fdrop(fp2, p); free3: if (fdp->fd_ofiles[sv[0]] == fp1) { fdp->fd_ofiles[sv[0]] = NULL; fdrop(fp1, p); } fdrop(fp1, p); free2: (void)soclose(so2); free1: (void)soclose(so1); return (error); } static int sendit(p, s, mp, flags) register struct proc *p; int s; register struct msghdr *mp; int flags; { struct file *fp; struct uio auio; register struct iovec *iov; register int i; struct mbuf *control; struct sockaddr *to; int len, error; struct socket *so; #ifdef KTRACE struct iovec *ktriov = NULL; struct uio ktruio; #endif error = holdsock(p->p_fd, s, &fp); if (error) return (error); auio.uio_iov = mp->msg_iov; auio.uio_iovcnt = mp->msg_iovlen; auio.uio_segflg = UIO_USERSPACE; auio.uio_rw = UIO_WRITE; auio.uio_procp = p; auio.uio_offset = 0; /* XXX */ auio.uio_resid = 0; iov = mp->msg_iov; for (i = 0; i < mp->msg_iovlen; i++, iov++) { if ((auio.uio_resid += iov->iov_len) < 0) { fdrop(fp, p); return (EINVAL); } } if (mp->msg_name) { error = getsockaddr(&to, mp->msg_name, mp->msg_namelen); if (error) { fdrop(fp, p); return (error); } } else { to = 0; } if (mp->msg_control) { if (mp->msg_controllen < sizeof(struct cmsghdr) #ifdef COMPAT_OLDSOCK && mp->msg_flags != MSG_COMPAT #endif ) { error = EINVAL; goto bad; } error = sockargs(&control, mp->msg_control, mp->msg_controllen, MT_CONTROL); if (error) goto bad; #ifdef COMPAT_OLDSOCK if (mp->msg_flags == MSG_COMPAT) { register struct cmsghdr *cm; M_PREPEND(control, sizeof(*cm), M_WAIT); if (control == 0) { error = ENOBUFS; goto bad; } else { cm = mtod(control, struct cmsghdr *); cm->cmsg_len = control->m_len; cm->cmsg_level = SOL_SOCKET; cm->cmsg_type = SCM_RIGHTS; } } #endif } else { control = 0; } #ifdef KTRACE if (KTRPOINT(p, KTR_GENIO)) { int iovlen = auio.uio_iovcnt * sizeof (struct iovec); MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); bcopy((caddr_t)auio.uio_iov, (caddr_t)ktriov, iovlen); ktruio = auio; } #endif len = auio.uio_resid; so = (struct socket *)fp->f_data; error = so->so_proto->pr_usrreqs->pru_sosend(so, to, &auio, 0, control, flags, p); if (error) { if (auio.uio_resid != len && (error == ERESTART || error == EINTR || error == EWOULDBLOCK)) error = 0; if (error == EPIPE) psignal(p, SIGPIPE); } if (error == 0) p->p_retval[0] = len - auio.uio_resid; #ifdef KTRACE if (ktriov != NULL) { if (error == 0) { ktruio.uio_iov = ktriov; ktruio.uio_resid = p->p_retval[0]; ktrgenio(p->p_tracep, s, UIO_WRITE, &ktruio, error); } FREE(ktriov, M_TEMP); } #endif bad: fdrop(fp, p); if (to) FREE(to, M_SONAME); return (error); } int sendto(p, uap) struct proc *p; register struct sendto_args /* { int s; caddr_t buf; size_t len; int flags; caddr_t to; int tolen; } */ *uap; { struct msghdr msg; struct iovec aiov; msg.msg_name = uap->to; msg.msg_namelen = uap->tolen; msg.msg_iov = &aiov; msg.msg_iovlen = 1; msg.msg_control = 0; #ifdef COMPAT_OLDSOCK msg.msg_flags = 0; #endif aiov.iov_base = uap->buf; aiov.iov_len = uap->len; return (sendit(p, uap->s, &msg, uap->flags)); } #ifdef COMPAT_OLDSOCK int osend(p, uap) struct proc *p; register struct osend_args /* { int s; caddr_t buf; int len; int flags; } */ *uap; { struct msghdr msg; struct iovec aiov; msg.msg_name = 0; msg.msg_namelen = 0; msg.msg_iov = &aiov; msg.msg_iovlen = 1; aiov.iov_base = uap->buf; aiov.iov_len = uap->len; msg.msg_control = 0; msg.msg_flags = 0; return (sendit(p, uap->s, &msg, uap->flags)); } int osendmsg(p, uap) struct proc *p; register struct osendmsg_args /* { int s; caddr_t msg; int flags; } */ *uap; { struct msghdr msg; struct iovec aiov[UIO_SMALLIOV], *iov; int error; error = copyin(uap->msg, (caddr_t)&msg, sizeof (struct omsghdr)); if (error) return (error); if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) return (EMSGSIZE); MALLOC(iov, struct iovec *, sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, M_WAITOK); } else iov = aiov; error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, (unsigned)(msg.msg_iovlen * sizeof (struct iovec))); if (error) goto done; msg.msg_flags = MSG_COMPAT; msg.msg_iov = iov; error = sendit(p, uap->s, &msg, uap->flags); done: if (iov != aiov) FREE(iov, M_IOV); return (error); } #endif int sendmsg(p, uap) struct proc *p; register struct sendmsg_args /* { int s; caddr_t msg; int flags; } */ *uap; { struct msghdr msg; struct iovec aiov[UIO_SMALLIOV], *iov; int error; error = copyin(uap->msg, (caddr_t)&msg, sizeof (msg)); if (error) return (error); if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) return (EMSGSIZE); MALLOC(iov, struct iovec *, sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, M_WAITOK); } else iov = aiov; if (msg.msg_iovlen && (error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, (unsigned)(msg.msg_iovlen * sizeof (struct iovec))))) goto done; msg.msg_iov = iov; #ifdef COMPAT_OLDSOCK msg.msg_flags = 0; #endif error = sendit(p, uap->s, &msg, uap->flags); done: if (iov != aiov) FREE(iov, M_IOV); return (error); } static int recvit(p, s, mp, namelenp) register struct proc *p; int s; register struct msghdr *mp; caddr_t namelenp; { struct file *fp; struct uio auio; register struct iovec *iov; register int i; int len, error; struct mbuf *m, *control = 0; caddr_t ctlbuf; struct socket *so; struct sockaddr *fromsa = 0; #ifdef KTRACE struct iovec *ktriov = NULL; struct uio ktruio; #endif error = holdsock(p->p_fd, s, &fp); if (error) return (error); auio.uio_iov = mp->msg_iov; auio.uio_iovcnt = mp->msg_iovlen; auio.uio_segflg = UIO_USERSPACE; auio.uio_rw = UIO_READ; auio.uio_procp = p; auio.uio_offset = 0; /* XXX */ auio.uio_resid = 0; iov = mp->msg_iov; for (i = 0; i < mp->msg_iovlen; i++, iov++) { if ((auio.uio_resid += iov->iov_len) < 0) { fdrop(fp, p); return (EINVAL); } } #ifdef KTRACE if (KTRPOINT(p, KTR_GENIO)) { int iovlen = auio.uio_iovcnt * sizeof (struct iovec); MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); bcopy((caddr_t)auio.uio_iov, (caddr_t)ktriov, iovlen); ktruio = auio; } #endif len = auio.uio_resid; so = (struct socket *)fp->f_data; error = so->so_proto->pr_usrreqs->pru_soreceive(so, &fromsa, &auio, (struct mbuf **)0, mp->msg_control ? &control : (struct mbuf **)0, &mp->msg_flags); if (error) { if (auio.uio_resid != len && (error == ERESTART || error == EINTR || error == EWOULDBLOCK)) error = 0; } #ifdef KTRACE if (ktriov != NULL) { if (error == 0) { ktruio.uio_iov = ktriov; ktruio.uio_resid = len - auio.uio_resid; ktrgenio(p->p_tracep, s, UIO_READ, &ktruio, error); } FREE(ktriov, M_TEMP); } #endif if (error) goto out; p->p_retval[0] = len - auio.uio_resid; if (mp->msg_name) { len = mp->msg_namelen; if (len <= 0 || fromsa == 0) len = 0; else { #ifndef MIN #define MIN(a,b) ((a)>(b)?(b):(a)) #endif /* save sa_len before it is destroyed by MSG_COMPAT */ len = MIN(len, fromsa->sa_len); #ifdef COMPAT_OLDSOCK if (mp->msg_flags & MSG_COMPAT) ((struct osockaddr *)fromsa)->sa_family = fromsa->sa_family; #endif error = copyout(fromsa, (caddr_t)mp->msg_name, (unsigned)len); if (error) goto out; } mp->msg_namelen = len; if (namelenp && (error = copyout((caddr_t)&len, namelenp, sizeof (int)))) { #ifdef COMPAT_OLDSOCK if (mp->msg_flags & MSG_COMPAT) error = 0; /* old recvfrom didn't check */ else #endif goto out; } } if (mp->msg_control) { #ifdef COMPAT_OLDSOCK /* * We assume that old recvmsg calls won't receive access * rights and other control info, esp. as control info * is always optional and those options didn't exist in 4.3. * If we receive rights, trim the cmsghdr; anything else * is tossed. */ if (control && mp->msg_flags & MSG_COMPAT) { if (mtod(control, struct cmsghdr *)->cmsg_level != SOL_SOCKET || mtod(control, struct cmsghdr *)->cmsg_type != SCM_RIGHTS) { mp->msg_controllen = 0; goto out; } control->m_len -= sizeof (struct cmsghdr); control->m_data += sizeof (struct cmsghdr); } #endif len = mp->msg_controllen; m = control; mp->msg_controllen = 0; ctlbuf = (caddr_t) mp->msg_control; while (m && len > 0) { unsigned int tocopy; if (len >= m->m_len) tocopy = m->m_len; else { mp->msg_flags |= MSG_CTRUNC; tocopy = len; } if ((error = copyout((caddr_t)mtod(m, caddr_t), ctlbuf, tocopy)) != 0) goto out; ctlbuf += tocopy; len -= tocopy; m = m->m_next; } mp->msg_controllen = ctlbuf - (caddr_t)mp->msg_control; } out: fdrop(fp, p); if (fromsa) FREE(fromsa, M_SONAME); if (control) m_freem(control); return (error); } int recvfrom(p, uap) struct proc *p; register struct recvfrom_args /* { int s; caddr_t buf; size_t len; int flags; caddr_t from; int *fromlenaddr; } */ *uap; { struct msghdr msg; struct iovec aiov; int error; if (uap->fromlenaddr) { error = copyin((caddr_t)uap->fromlenaddr, (caddr_t)&msg.msg_namelen, sizeof (msg.msg_namelen)); if (error) return (error); } else msg.msg_namelen = 0; msg.msg_name = uap->from; msg.msg_iov = &aiov; msg.msg_iovlen = 1; aiov.iov_base = uap->buf; aiov.iov_len = uap->len; msg.msg_control = 0; msg.msg_flags = uap->flags; return (recvit(p, uap->s, &msg, (caddr_t)uap->fromlenaddr)); } #ifdef COMPAT_OLDSOCK int orecvfrom(p, uap) struct proc *p; struct recvfrom_args *uap; { uap->flags |= MSG_COMPAT; return (recvfrom(p, uap)); } #endif #ifdef COMPAT_OLDSOCK int orecv(p, uap) struct proc *p; register struct orecv_args /* { int s; caddr_t buf; int len; int flags; } */ *uap; { struct msghdr msg; struct iovec aiov; msg.msg_name = 0; msg.msg_namelen = 0; msg.msg_iov = &aiov; msg.msg_iovlen = 1; aiov.iov_base = uap->buf; aiov.iov_len = uap->len; msg.msg_control = 0; msg.msg_flags = uap->flags; return (recvit(p, uap->s, &msg, (caddr_t)0)); } /* * Old recvmsg. This code takes advantage of the fact that the old msghdr * overlays the new one, missing only the flags, and with the (old) access * rights where the control fields are now. */ int orecvmsg(p, uap) struct proc *p; register struct orecvmsg_args /* { int s; struct omsghdr *msg; int flags; } */ *uap; { struct msghdr msg; struct iovec aiov[UIO_SMALLIOV], *iov; int error; error = copyin((caddr_t)uap->msg, (caddr_t)&msg, sizeof (struct omsghdr)); if (error) return (error); if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) return (EMSGSIZE); MALLOC(iov, struct iovec *, sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, M_WAITOK); } else iov = aiov; msg.msg_flags = uap->flags | MSG_COMPAT; error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov, (unsigned)(msg.msg_iovlen * sizeof (struct iovec))); if (error) goto done; msg.msg_iov = iov; error = recvit(p, uap->s, &msg, (caddr_t)&uap->msg->msg_namelen); if (msg.msg_controllen && error == 0) error = copyout((caddr_t)&msg.msg_controllen, (caddr_t)&uap->msg->msg_accrightslen, sizeof (int)); done: if (iov != aiov) FREE(iov, M_IOV); return (error); } #endif int recvmsg(p, uap) struct proc *p; register struct recvmsg_args /* { int s; struct msghdr *msg; int flags; } */ *uap; { struct msghdr msg; struct iovec aiov[UIO_SMALLIOV], *uiov, *iov; register int error; error = copyin((caddr_t)uap->msg, (caddr_t)&msg, sizeof (msg)); if (error) return (error); if ((u_int)msg.msg_iovlen >= UIO_SMALLIOV) { if ((u_int)msg.msg_iovlen >= UIO_MAXIOV) return (EMSGSIZE); MALLOC(iov, struct iovec *, sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV, M_WAITOK); } else iov = aiov; #ifdef COMPAT_OLDSOCK msg.msg_flags = uap->flags &~ MSG_COMPAT; #else msg.msg_flags = uap->flags; #endif uiov = msg.msg_iov; msg.msg_iov = iov; error = copyin((caddr_t)uiov, (caddr_t)iov, (unsigned)(msg.msg_iovlen * sizeof (struct iovec))); if (error) goto done; error = recvit(p, uap->s, &msg, (caddr_t)0); if (!error) { msg.msg_iov = uiov; error = copyout((caddr_t)&msg, (caddr_t)uap->msg, sizeof(msg)); } done: if (iov != aiov) FREE(iov, M_IOV); return (error); } /* ARGSUSED */ int shutdown(p, uap) struct proc *p; register struct shutdown_args /* { int s; int how; } */ *uap; { struct file *fp; int error; error = holdsock(p->p_fd, uap->s, &fp); if (error) return (error); error = soshutdown((struct socket *)fp->f_data, uap->how); fdrop(fp, p); return(error); } /* ARGSUSED */ int setsockopt(p, uap) struct proc *p; register struct setsockopt_args /* { int s; int level; int name; caddr_t val; int valsize; } */ *uap; { struct file *fp; struct sockopt sopt; int error; if (uap->val == 0 && uap->valsize != 0) return (EFAULT); if (uap->valsize < 0) return (EINVAL); error = holdsock(p->p_fd, uap->s, &fp); if (error) return (error); sopt.sopt_dir = SOPT_SET; sopt.sopt_level = uap->level; sopt.sopt_name = uap->name; sopt.sopt_val = uap->val; sopt.sopt_valsize = uap->valsize; sopt.sopt_p = p; error = sosetopt((struct socket *)fp->f_data, &sopt); fdrop(fp, p); return(error); } /* ARGSUSED */ int getsockopt(p, uap) struct proc *p; register struct getsockopt_args /* { int s; int level; int name; caddr_t val; int *avalsize; } */ *uap; { int valsize, error; struct file *fp; struct sockopt sopt; error = holdsock(p->p_fd, uap->s, &fp); if (error) return (error); if (uap->val) { error = copyin((caddr_t)uap->avalsize, (caddr_t)&valsize, sizeof (valsize)); if (error) { fdrop(fp, p); return (error); } if (valsize < 0) { fdrop(fp, p); return (EINVAL); } } else { valsize = 0; } sopt.sopt_dir = SOPT_GET; sopt.sopt_level = uap->level; sopt.sopt_name = uap->name; sopt.sopt_val = uap->val; sopt.sopt_valsize = (size_t)valsize; /* checked non-negative above */ sopt.sopt_p = p; error = sogetopt((struct socket *)fp->f_data, &sopt); if (error == 0) { valsize = sopt.sopt_valsize; error = copyout((caddr_t)&valsize, (caddr_t)uap->avalsize, sizeof (valsize)); } fdrop(fp, p); return (error); } /* * Get socket name. */ /* ARGSUSED */ static int getsockname1(p, uap, compat) struct proc *p; register struct getsockname_args /* { int fdes; caddr_t asa; int *alen; } */ *uap; int compat; { struct file *fp; register struct socket *so; struct sockaddr *sa; int len, error; error = holdsock(p->p_fd, uap->fdes, &fp); if (error) return (error); error = copyin((caddr_t)uap->alen, (caddr_t)&len, sizeof (len)); if (error) { fdrop(fp, p); return (error); } + if (len < 0) { + fdrop(fp, p); + return (EINVAL); + } so = (struct socket *)fp->f_data; sa = 0; error = (*so->so_proto->pr_usrreqs->pru_sockaddr)(so, &sa); if (error) goto bad; if (sa == 0) { len = 0; goto gotnothing; } len = MIN(len, sa->sa_len); #ifdef COMPAT_OLDSOCK if (compat) ((struct osockaddr *)sa)->sa_family = sa->sa_family; #endif error = copyout(sa, (caddr_t)uap->asa, (u_int)len); if (error == 0) gotnothing: error = copyout((caddr_t)&len, (caddr_t)uap->alen, sizeof (len)); bad: if (sa) FREE(sa, M_SONAME); fdrop(fp, p); return (error); } int getsockname(p, uap) struct proc *p; struct getsockname_args *uap; { return (getsockname1(p, uap, 0)); } #ifdef COMPAT_OLDSOCK int ogetsockname(p, uap) struct proc *p; struct getsockname_args *uap; { return (getsockname1(p, uap, 1)); } #endif /* COMPAT_OLDSOCK */ /* * Get name of peer for connected socket. */ /* ARGSUSED */ static int getpeername1(p, uap, compat) struct proc *p; register struct getpeername_args /* { int fdes; caddr_t asa; int *alen; } */ *uap; int compat; { struct file *fp; register struct socket *so; struct sockaddr *sa; int len, error; error = holdsock(p->p_fd, uap->fdes, &fp); if (error) return (error); so = (struct socket *)fp->f_data; if ((so->so_state & (SS_ISCONNECTED|SS_ISCONFIRMING)) == 0) { fdrop(fp, p); return (ENOTCONN); } error = copyin((caddr_t)uap->alen, (caddr_t)&len, sizeof (len)); if (error) { fdrop(fp, p); return (error); + } + if (len < 0) { + fdrop(fp, p); + return (EINVAL); } sa = 0; error = (*so->so_proto->pr_usrreqs->pru_peeraddr)(so, &sa); if (error) goto bad; if (sa == 0) { len = 0; goto gotnothing; } len = MIN(len, sa->sa_len); #ifdef COMPAT_OLDSOCK if (compat) ((struct osockaddr *)sa)->sa_family = sa->sa_family; #endif error = copyout(sa, (caddr_t)uap->asa, (u_int)len); if (error) goto bad; gotnothing: error = copyout((caddr_t)&len, (caddr_t)uap->alen, sizeof (len)); bad: if (sa) FREE(sa, M_SONAME); fdrop(fp, p); return (error); } int getpeername(p, uap) struct proc *p; struct getpeername_args *uap; { return (getpeername1(p, uap, 0)); } #ifdef COMPAT_OLDSOCK int ogetpeername(p, uap) struct proc *p; struct ogetpeername_args *uap; { /* XXX uap should have type `getpeername_args *' to begin with. */ return (getpeername1(p, (struct getpeername_args *)uap, 1)); } #endif /* COMPAT_OLDSOCK */ int sockargs(mp, buf, buflen, type) struct mbuf **mp; caddr_t buf; int buflen, type; { register struct sockaddr *sa; register struct mbuf *m; int error; if ((u_int)buflen > MLEN) { #ifdef COMPAT_OLDSOCK if (type == MT_SONAME && (u_int)buflen <= 112) buflen = MLEN; /* unix domain compat. hack */ else #endif return (EINVAL); } m = m_get(M_WAIT, type); if (m == NULL) return (ENOBUFS); m->m_len = buflen; error = copyin(buf, mtod(m, caddr_t), (u_int)buflen); if (error) (void) m_free(m); else { *mp = m; if (type == MT_SONAME) { sa = mtod(m, struct sockaddr *); #if defined(COMPAT_OLDSOCK) && BYTE_ORDER != BIG_ENDIAN if (sa->sa_family == 0 && sa->sa_len < AF_MAX) sa->sa_family = sa->sa_len; #endif sa->sa_len = buflen; } } return (error); } int getsockaddr(namp, uaddr, len) struct sockaddr **namp; caddr_t uaddr; size_t len; { struct sockaddr *sa; int error; if (len > SOCK_MAXADDRLEN) return ENAMETOOLONG; MALLOC(sa, struct sockaddr *, len, M_SONAME, M_WAITOK); error = copyin(uaddr, sa, len); if (error) { FREE(sa, M_SONAME); } else { #if defined(COMPAT_OLDSOCK) && BYTE_ORDER != BIG_ENDIAN if (sa->sa_family == 0 && sa->sa_len < AF_MAX) sa->sa_family = sa->sa_len; #endif sa->sa_len = len; *namp = sa; } return error; } /* * holdsock() - load the struct file pointer associated * with a socket into *fpp. If an error occurs, non-zero * will be returned and *fpp will be set to NULL. */ int holdsock(fdp, fdes, fpp) struct filedesc *fdp; int fdes; struct file **fpp; { register struct file *fp = NULL; int error = 0; if ((unsigned)fdes >= fdp->fd_nfiles || (fp = fdp->fd_ofiles[fdes]) == NULL) { error = EBADF; } else if (fp->f_type != DTYPE_SOCKET) { error = ENOTSOCK; fp = NULL; } else { fhold(fp); } *fpp = fp; return(error); } /* * Allocate a pool of sf_bufs (sendfile(2) or "super-fast" if you prefer. :-)) * XXX - The sf_buf functions are currently private to sendfile(2), so have * been made static, but may be useful in the future for doing zero-copy in * other parts of the networking code. */ static void sf_buf_init(void *arg) { int i; SLIST_INIT(&sf_freelist); sf_base = kmem_alloc_pageable(kernel_map, nsfbufs * PAGE_SIZE); sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP, M_NOWAIT); bzero(sf_bufs, nsfbufs * sizeof(struct sf_buf)); for (i = 0; i < nsfbufs; i++) { sf_bufs[i].kva = sf_base + i * PAGE_SIZE; SLIST_INSERT_HEAD(&sf_freelist, &sf_bufs[i], free_list); } } /* * Get an sf_buf from the freelist. Will block if none are available. */ static struct sf_buf * sf_buf_alloc() { struct sf_buf *sf; int s; int error; s = splimp(); while ((sf = SLIST_FIRST(&sf_freelist)) == NULL) { sf_buf_alloc_want = 1; error = tsleep(&sf_freelist, PVM|PCATCH, "sfbufa", 0); if (error) break; } if (sf != NULL) { SLIST_REMOVE_HEAD(&sf_freelist, free_list); sf->refcnt = 1; } splx(s); return (sf); } #define dtosf(x) (&sf_bufs[((uintptr_t)(x) - (uintptr_t)sf_base) >> PAGE_SHIFT]) static void sf_buf_ref(caddr_t addr, u_int size) { struct sf_buf *sf; sf = dtosf(addr); if (sf->refcnt == 0) panic("sf_buf_ref: referencing a free sf_buf"); sf->refcnt++; } /* * Lose a reference to an sf_buf. When none left, detach mapped page * and release resources back to the system. * * Must be called at splimp. */ static void sf_buf_free(caddr_t addr, u_int size) { struct sf_buf *sf; struct vm_page *m; int s; sf = dtosf(addr); if (sf->refcnt == 0) panic("sf_buf_free: freeing free sf_buf"); sf->refcnt--; if (sf->refcnt == 0) { pmap_qremove((vm_offset_t)addr, 1); m = sf->m; s = splvm(); vm_page_unwire(m, 0); /* * Check for the object going away on us. This can * happen since we don't hold a reference to it. * If so, we're responsible for freeing the page. */ if (m->wire_count == 0 && m->object == NULL) vm_page_free(m); splx(s); sf->m = NULL; SLIST_INSERT_HEAD(&sf_freelist, sf, free_list); if (sf_buf_alloc_want) { sf_buf_alloc_want = 0; wakeup(&sf_freelist); } } } /* * sendfile(2). * int sendfile(int fd, int s, off_t offset, size_t nbytes, * struct sf_hdtr *hdtr, off_t *sbytes, int flags) * * Send a file specified by 'fd' and starting at 'offset' to a socket * specified by 's'. Send only 'nbytes' of the file or until EOF if * nbytes == 0. Optionally add a header and/or trailer to the socket * output. If specified, write the total number of bytes sent into *sbytes. */ int sendfile(struct proc *p, struct sendfile_args *uap) { return (do_sendfile(p, uap, 0)); } #ifdef COMPAT_43 int osendfile(struct proc *p, struct osendfile_args *uap) { struct sendfile_args args; args.fd = uap->fd; args.s = uap->s; args.offset = uap->offset; args.nbytes = uap->nbytes; args.hdtr = uap->hdtr; args.sbytes = uap->sbytes; args.flags = uap->flags; return (do_sendfile(p, &args, 1)); } #endif int do_sendfile(struct proc *p, struct sendfile_args *uap, int compat) { struct file *fp; struct filedesc *fdp = p->p_fd; struct vnode *vp; struct vm_object *obj; struct socket *so; struct mbuf *m; struct sf_buf *sf; struct vm_page *pg; struct writev_args nuap; struct sf_hdtr hdtr; off_t off, xfsize, hdtr_size, sbytes = 0; int error = 0, s; vp = NULL; hdtr_size = 0; /* * Do argument checking. Must be a regular file in, stream * type and connected socket out, positive offset. */ fp = holdfp(fdp, uap->fd, FREAD); if (fp == NULL) { error = EBADF; goto done; } if (fp->f_type != DTYPE_VNODE) { error = EINVAL; goto done; } vp = (struct vnode *)fp->f_data; vref(vp); if (vp->v_type != VREG || VOP_GETVOBJECT(vp, &obj) != 0) { error = EINVAL; goto done; } fdrop(fp, p); error = holdsock(p->p_fd, uap->s, &fp); if (error) goto done; so = (struct socket *)fp->f_data; if (so->so_type != SOCK_STREAM) { error = EINVAL; goto done; } if ((so->so_state & SS_ISCONNECTED) == 0) { error = ENOTCONN; goto done; } if (uap->offset < 0) { error = EINVAL; goto done; } /* * If specified, get the pointer to the sf_hdtr struct for * any headers/trailers. */ if (uap->hdtr != NULL) { error = copyin(uap->hdtr, &hdtr, sizeof(hdtr)); if (error) goto done; /* * Send any headers. Wimp out and use writev(2). */ if (hdtr.headers != NULL) { nuap.fd = uap->s; nuap.iovp = hdtr.headers; nuap.iovcnt = hdtr.hdr_cnt; error = writev(p, &nuap); if (error) goto done; if (compat) sbytes += p->p_retval[0]; else hdtr_size += p->p_retval[0]; } } /* * Protect against multiple writers to the socket. */ (void) sblock(&so->so_snd, M_WAITOK); /* * Loop through the pages in the file, starting with the requested * offset. Get a file page (do I/O if necessary), map the file page * into an sf_buf, attach an mbuf header to the sf_buf, and queue * it on the socket. */ for (off = uap->offset; ; off += xfsize, sbytes += xfsize) { vm_pindex_t pindex; vm_offset_t pgoff; pindex = OFF_TO_IDX(off); retry_lookup: /* * Calculate the amount to transfer. Not to exceed a page, * the EOF, or the passed in nbytes. */ xfsize = obj->un_pager.vnp.vnp_size - off; if (xfsize > PAGE_SIZE) xfsize = PAGE_SIZE; pgoff = (vm_offset_t)(off & PAGE_MASK); if (PAGE_SIZE - pgoff < xfsize) xfsize = PAGE_SIZE - pgoff; if (uap->nbytes && xfsize > (uap->nbytes - sbytes)) xfsize = uap->nbytes - sbytes; if (xfsize <= 0) break; /* * Optimize the non-blocking case by looking at the socket space * before going to the extra work of constituting the sf_buf. */ if ((so->so_state & SS_NBIO) && sbspace(&so->so_snd) <= 0) { if (so->so_state & SS_CANTSENDMORE) error = EPIPE; else error = EAGAIN; sbunlock(&so->so_snd); goto done; } /* * Attempt to look up the page. * * Allocate if not found * * Wait and loop if busy. */ pg = vm_page_lookup(obj, pindex); if (pg == NULL) { pg = vm_page_alloc(obj, pindex, VM_ALLOC_NORMAL); if (pg == NULL) { VM_WAIT; goto retry_lookup; } vm_page_wakeup(pg); } else if (vm_page_sleep_busy(pg, TRUE, "sfpbsy")) { goto retry_lookup; } /* * Wire the page so it does not get ripped out from under * us. */ vm_page_wire(pg); /* * If page is not valid for what we need, initiate I/O */ if (!pg->valid || !vm_page_is_valid(pg, pgoff, xfsize)) { struct uio auio; struct iovec aiov; int bsize; /* * Ensure that our page is still around when the I/O * completes. */ vm_page_io_start(pg); /* * Get the page from backing store. */ bsize = vp->v_mount->mnt_stat.f_iosize; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; aiov.iov_base = 0; aiov.iov_len = MAXBSIZE; auio.uio_resid = MAXBSIZE; auio.uio_offset = trunc_page(off); auio.uio_segflg = UIO_NOCOPY; auio.uio_rw = UIO_READ; auio.uio_procp = p; vn_lock(vp, LK_SHARED | LK_NOPAUSE | LK_RETRY, p); error = VOP_READ(vp, &auio, IO_VMIO | ((MAXBSIZE / bsize) << 16), p->p_ucred); VOP_UNLOCK(vp, 0, p); vm_page_flag_clear(pg, PG_ZERO); vm_page_io_finish(pg); if (error) { vm_page_unwire(pg, 0); /* * See if anyone else might know about this page. * If not and it is not valid, then free it. */ if (pg->wire_count == 0 && pg->valid == 0 && pg->busy == 0 && !(pg->flags & PG_BUSY) && pg->hold_count == 0) { vm_page_busy(pg); vm_page_free(pg); } sbunlock(&so->so_snd); goto done; } } /* * Get a sendfile buf. We usually wait as long as necessary, * but this wait can be interrupted. */ if ((sf = sf_buf_alloc()) == NULL) { s = splvm(); vm_page_unwire(pg, 0); if (pg->wire_count == 0 && pg->object == NULL) vm_page_free(pg); splx(s); sbunlock(&so->so_snd); error = EINTR; goto done; } /* * Allocate a kernel virtual page and insert the physical page * into it. */ sf->m = pg; pmap_qenter(sf->kva, &pg, 1); /* * Get an mbuf header and set it up as having external storage. */ MGETHDR(m, M_WAIT, MT_DATA); if (m == NULL) { error = ENOBUFS; sf_buf_free((void *)sf->kva, PAGE_SIZE); sbunlock(&so->so_snd); goto done; } m->m_ext.ext_free = sf_buf_free; m->m_ext.ext_ref = sf_buf_ref; m->m_ext.ext_buf = (void *)sf->kva; m->m_ext.ext_size = PAGE_SIZE; m->m_data = (char *) sf->kva + pgoff; m->m_flags |= M_EXT; m->m_pkthdr.len = m->m_len = xfsize; /* * Add the buffer to the socket buffer chain. */ s = splnet(); retry_space: /* * Make sure that the socket is still able to take more data. * CANTSENDMORE being true usually means that the connection * was closed. so_error is true when an error was sensed after * a previous send. * The state is checked after the page mapping and buffer * allocation above since those operations may block and make * any socket checks stale. From this point forward, nothing * blocks before the pru_send (or more accurately, any blocking * results in a loop back to here to re-check). */ if ((so->so_state & SS_CANTSENDMORE) || so->so_error) { if (so->so_state & SS_CANTSENDMORE) { error = EPIPE; } else { error = so->so_error; so->so_error = 0; } m_freem(m); sbunlock(&so->so_snd); splx(s); goto done; } /* * Wait for socket space to become available. We do this just * after checking the connection state above in order to avoid * a race condition with sbwait(). */ if (sbspace(&so->so_snd) < so->so_snd.sb_lowat) { if (so->so_state & SS_NBIO) { m_freem(m); sbunlock(&so->so_snd); splx(s); error = EAGAIN; goto done; } error = sbwait(&so->so_snd); /* * An error from sbwait usually indicates that we've * been interrupted by a signal. If we've sent anything * then return bytes sent, otherwise return the error. */ if (error) { m_freem(m); sbunlock(&so->so_snd); splx(s); goto done; } goto retry_space; } error = (*so->so_proto->pr_usrreqs->pru_send)(so, 0, m, 0, 0, p); splx(s); if (error) { sbunlock(&so->so_snd); goto done; } } sbunlock(&so->so_snd); /* * Send trailers. Wimp out and use writev(2). */ if (uap->hdtr != NULL && hdtr.trailers != NULL) { nuap.fd = uap->s; nuap.iovp = hdtr.trailers; nuap.iovcnt = hdtr.trl_cnt; error = writev(p, &nuap); if (error) goto done; if (compat) sbytes += p->p_retval[0]; else hdtr_size += p->p_retval[0]; } done: if (uap->sbytes != NULL) { if (compat == 0) sbytes += hdtr_size; copyout(&sbytes, uap->sbytes, sizeof(off_t)); } if (vp) vrele(vp); if (fp) fdrop(fp, p); return (error); }