diff options
Diffstat (limited to 'contrib/syslinux-4.02/com32/cmenu/adv_menu.tpl')
| -rw-r--r-- | contrib/syslinux-4.02/com32/cmenu/adv_menu.tpl | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/cmenu/adv_menu.tpl b/contrib/syslinux-4.02/com32/cmenu/adv_menu.tpl new file mode 100644 index 0000000..871c782 --- /dev/null +++ b/contrib/syslinux-4.02/com32/cmenu/adv_menu.tpl @@ -0,0 +1,465 @@ +All the lines in this file not in between --something BEGINS-- and --something ENDS-- +is ignored completely and will not make it into the generated C file + +This file has sections of C code each section delimited by --secname BEGINS-- +and --secname ENDS--. In the generated C code certain section may be used multiple +times. Currently the different section which must be defined are + +header, system, item, login and footer + +Any additional sections you define will be processed but will probably not make it +to the C code if you do not modify menugen.py to use it. + +header and footer go through unmolested. The remaining are % substituted using +python rules. Basically it means %(var)s gets replaced by the value of the variable +"var" which is a processed form of what is read from the .menu file + +NOTE: There is absolutely no C code in the python script, so you are free to +modify this template to suit your needs + +--header BEGINS-- +/* -*- c -*- ------------------------------------------------------------- * + * + * Copyright 2004-2006 Murali Krishnan Ganapathy - All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, Inc., 53 Temple Place Ste 330, + * Boston MA 02111-1307, USA; either version 2 of the License, or + * (at your option) any later version; incorporated herein by reference. + * + * ----------------------------------------------------------------------- */ + +#ifndef NULL +#define NULL ((void *) 0) +#endif + +#include "menu.h" +#include "help.h" +#include "passwords.h" +#include "com32io.h" +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#define MAX_CMD_LINE_LENGTH 514 + +typedef struct s_xtra { + long ipappend; // Stores the ipappend flag to send (useful for PXELINUX only) + char *argsmenu; // Stores the name of menu which contains options for the given RUN item + char *perms; // stores the permissions required to activate the item +} t_xtra; + +typedef t_xtra *pt_xtra; // Pointer to extra datastructure + +// Types of dot commands for which caller takes responsibility of handling +// In some case some commands may not make sense, it is up to the caller +// to handle cases which do not make sense +typedef enum {QUIT_CMD, REPEAT_CMD, ENTER_CMD, ESCAPE_CMD} t_dotcmd; + + +/*----------------- Global Variables */ + +// default user +#define GUEST_USER "guest" + +// for local commands. return value of execdotcmd +#define QUIT_CMD 0 +#define RPT_CMD 1 + +char username[12]; // Name of user currently using the system + +int PWD_ROW; // Line number where user authentication happens +int EDIT_ROW; // row where User Tab + +char loginstr[] = "<L>ogin "; +char logoutstr[30]; + +int vmode; // The video mode we want to be in +char timeoutcmd[MAX_CMD_LINE_LENGTH]; // Command to execute on timeout +char totaltimeoutcmd[MAX_CMD_LINE_LENGTH]; // Command to execute on totaltimeout + +char QUITSTR[] = ".quit"; // same as exit +char IGNORESTR[]=".ignore"; // same as repeat, wait + +/*---------------- End globals */ + +// returns pointer to first non-space char +// and advances end of str by removing trailing spaces +char * strip(char *str) +{ + char *p,*s,*e; + if (!str) return NULL; + p = str; + s = NULL; + e = NULL; + while (*p) { + if (*p != ' ') { + // mark start of string or record the last visited non-space char + if (!s) s=p; else e=p; + } + p++; + } + *(++e)='\0'; // kill string earlier + return s; +} + +// executes a list of % separated commands +// non-dot commands are assumed to be syslinux commands +// All syslinux commands are appended with the contents of kerargs +// If it fails (kernel not found) then the next one is tried in the +// list +// returns QUIT_CMD or RPT_CMD +t_dotcmd execdotcmd(const char *cmd, char *defcmd, const char *kerargs) +{ + char cmdline[MAX_CMD_LINE_LENGTH]; + char dotcmd[MAX_CMD_LINE_LENGTH]; + char *curr,*next,*p,*args; + char ctr; + + strcpy(dotcmd,cmd); + next = dotcmd; + cmdline[0] = '\0'; + while (*next) { // if something to do + curr = next; + p = strchr(next,'%'); + if (p) { + *p--='\0'; next=p+2; + while (*p == ' ') p--; + *(++p)='\0'; // remove trailing spaces + } else { + if (*defcmd) { // execute defcmd next + next=defcmd; + defcmd=NULL; // exec def cmd only once + } else next=NULL; + } + // now we just need to execute the command "curr" + curr = strip(curr); + if (curr[0] != '.') { // just run the kernel + strcpy(cmdline,curr); + if (kerargs) strcat(cmdline,kerargs); + runsyslinuximage(cmdline,0); // No IPAppend + } else { // We have a DOT command + // split command into command and args (may be empty) + args = curr; + while ( (*args != ' ') && (*args != '\0') ) args++; + if (*args) { // found a space + *args++ = '\0'; + while (*args == ' ') args++; // skip over spaces + } + if ( (strcmp(curr,".exit")==0) || + (strcmp(curr,".quit")==0) + ) + return QUIT_CMD; + if ( (strcmp(curr,".repeat")==0) || + (strcmp(curr,".ignore")==0) || + (strcmp(curr,".wait")==0) + ) + return RPT_CMD; + if (strcmp(curr,".beep")==0) { + if ((args) && ('0' <= args[0]) && (args[0] <= '9')) + ctr = args[0]-'0'; + else ctr=1; + for (;ctr>0; ctr--) beep(); + } + if (strcmp(curr,".help")==0) runhelp(args); + } + } + return RPT_CMD; // by default we do not quit +} + + +TIMEOUTCODE timeout(const char *cmd) +{ + t_dotcmd c; + c = execdotcmd(cmd,".wait",NULL); + switch(c) { + case ENTER_CMD: + return CODE_ENTER; + case ESCAPE_CMD: + return CODE_ESCAPE; + default: + return CODE_WAIT; + } +} + +TIMEOUTCODE ontimeout(void) +{ + return timeout(timeoutcmd); +} + +TIMEOUTCODE ontotaltimeout(void) +{ + return timeout(totaltimeoutcmd); +} + +void keys_handler(t_menusystem * ms __attribute__ (( unused )), t_menuitem * mi, int scancode) +{ + int nc, nr; + + if (getscreensize(1, &nr, &nc)) { + /* Unknown screen size? */ + nc = 80; + nr = 24; + } + + if ( (scancode == KEY_F1) && (mi->helpid != 0xFFFF) ) { // If scancode of F1 and non-trivial helpid + runhelpsystem(mi->helpid); + } + + // If user hit TAB, and item is an "executable" item + // and user has privileges to edit it, edit it in place. + if ((scancode == KEY_TAB) && (mi->action == OPT_RUN) && + (EDIT_ROW < nr) && (EDIT_ROW > 0) && + (isallowed(username,"editcmd") || isallowed(username,"root"))) { + // User typed TAB and has permissions to edit command line + gotoxy(EDIT_ROW,1); + csprint("Command line:",0x07); + editstring(mi->data,ACTIONLEN); + gotoxy(EDIT_ROW,1); + cprint(' ',0x07,nc-1); + } +} + +t_handler_return login_handler(t_menusystem *ms, t_menuitem *mi) +{ + (void)mi; // Unused + char pwd[40]; + char login[40]; + int nc, nr; + t_handler_return rv; + + (void)ms; + + rv = ACTION_INVALID; + if (PWD_ROW < 0) return rv; // No need to authenticate + + if (mi->item == loginstr) { /* User wants to login */ + if (getscreensize(1, &nr, &nc)) { + /* Unknown screen size? */ + nc = 80; + nr = 24; + } + + gotoxy(PWD_ROW,1); + csprint("Enter Username: ",0x07); + getstring(login, sizeof username); + gotoxy(PWD_ROW,1); + cprint(' ',0x07,nc); + csprint("Enter Password: ",0x07); + getpwd(pwd, sizeof pwd); + gotoxy(PWD_ROW,1); + cprint(' ',0x07,nc); + + if (authenticate_user(login,pwd)) + { + strcpy(username,login); + strcpy(logoutstr,"<L>ogout "); + strcat(logoutstr,username); + mi->item = logoutstr; // Change item to read "Logout" + rv.refresh = 1; // refresh the screen (as item contents changed) + } + else strcpy(username,GUEST_USER); + } + else // User needs to logout + { + strcpy(username,GUEST_USER); + strcpy(logoutstr,""); + mi->item = loginstr; + } + + return rv; +} + +t_handler_return check_perms(t_menusystem *ms, t_menuitem *mi) +{ + char *perms; + pt_xtra x; + + (void) ms; // To keep compiler happy + + x = (pt_xtra) mi->extra_data; + perms = ( x ? x->perms : NULL); + if (!perms) return ACTION_VALID; + + if (isallowed(username,"root") || isallowed(username,perms)) // If allowed + return ACTION_VALID; + else return ACTION_INVALID; +} + +// Compute the full command line to add and if non-trivial +// prepend the string prepend to final command line +// Assume cmdline points to buffer long enough to hold answer +void gencommand(pt_menuitem mi, char *cmdline) +{ + pt_xtra x; + cmdline[0] = '\0'; + strcat(cmdline,mi->data); + x = (pt_xtra) mi->extra_data; + if ( (x) && (x->argsmenu)) gen_append_line(x->argsmenu,cmdline); +} + + +// run the given command together with additional options which may need passing +void runcommand(pt_menuitem mi) +{ + char *line; + pt_xtra x; + long ipappend; + + line = (char *)malloc(sizeof(char)*MAX_CMD_LINE_LENGTH); + gencommand(mi,line); + x = (pt_xtra) mi->extra_data; + ipappend = (x ? x->ipappend : 0); + + runsyslinuximage(line,x->ipappend); + free(line); +} + +// set the extra info for the specified menu item. +void set_xtra(pt_menuitem mi, const char *argsmenu, const char *perms, unsigned int helpid, long ipappend) +{ + pt_xtra xtra; + int bad_argsmenu, bad_perms, bad_ipappend; + + mi->extra_data = NULL; // initalize + mi->helpid = helpid; // set help id + + if (mi->action != OPT_RUN) return; + + bad_argsmenu = bad_perms = bad_ipappend = 0; + if ( (argsmenu==NULL) || (strlen(argsmenu)==0)) bad_argsmenu = 1; + if ( (perms==NULL) || (strlen(perms)==0)) bad_perms = 1; + if ( ipappend==0) bad_ipappend = 1; + + if (bad_argsmenu && bad_perms && bad_ipappend) return; + + xtra = (pt_xtra) malloc(sizeof(t_xtra)); + mi->extra_data = (void *) xtra; + xtra->argsmenu = xtra->perms = NULL; + xtra->ipappend = ipappend; + if (!bad_argsmenu) { + xtra->argsmenu = (char *) malloc(sizeof(char)*(strlen(argsmenu)+1)); + strcpy(xtra->argsmenu,argsmenu); + } + if (!bad_perms) { + xtra->perms = (char *) malloc(sizeof(char)*(strlen(perms)+1)); + strcpy(xtra->perms,perms); + mi->handler = &check_perms; + } +} + +int main(void) +{ + pt_menuitem curr; + char quit; + char exitcmd[MAX_CMD_LINE_LENGTH]; + char exitcmdroot[MAX_CMD_LINE_LENGTH]; + char onerrcmd[MAX_CMD_LINE_LENGTH]; + char startfile[MAX_CMD_LINE_LENGTH]; + char *ecmd; // effective exit command or onerrorcmd + char skipbits; + char skipcmd[MAX_CMD_LINE_LENGTH]; + int timeout; // time in multiples of 0.1 seconds + int totaltimeout; // time in multiples of 0.1 seconds + t_dotcmd dotrv; // to store the return value of execdotcmd + int temp; + + strcpy(username,GUEST_USER); +--header ENDS-- +--system BEGINS-- +/* ---- Initializing menu system parameters --- */ + vmode = %(videomode)s; + skipbits = %(skipcondn)s; + PWD_ROW = %(pwdrow)s; + EDIT_ROW = %(editrow)s; + strcpy(onerrcmd,"%(onerrorcmd)s"); + strcpy(exitcmd,"%(exitcmd)s"); + strcpy(exitcmdroot,"%(exitcmdroot)s"); + // If not specified exitcmdroot = exitcmd + if (exitcmdroot[0] == '\0') strcpy(exitcmdroot,exitcmd); + // Timeout stuff + timeout = %(timeout)s; + strcpy(timeoutcmd,"%(timeoutcmd)s"); + totaltimeout = %(totaltimeout)s; + strcpy(totaltimeoutcmd,"%(totaltimeoutcmd)s"); + strcpy(startfile,"%(startfile)s"); + + init_help("%(helpdir)s"); + init_passwords("%(pwdfile)s"); + init_menusystem("%(title)s"); + set_window_size(%(top)s,%(left)s,%(bot)s,%(right)s); + + // Register the ontimeout handler, with a time out of 10 seconds + reg_ontimeout(ontimeout,timeout*10,0); + reg_ontotaltimeout(ontotaltimeout,totaltimeout*10); + + // Register menusystem handlers + reg_handler(HDLR_KEYS,&keys_handler); +/* ---- End of initialization --- */ +--system ENDS-- +--item BEGINS-- + + curr = add_item("%(item)s","%(info)s",%(type)s,"%(data)s",%(state)d); + set_xtra(curr,"%(argsmenu)s","%(perms)s",%(helpid)d,%(ipappend)d); // Set associated extra info + set_shortcut(%(shortcut)s); +--item ENDS-- +--login BEGINS-- + + curr = add_item(loginstr,"Login/Logout of authentication system",OPT_RUN,NULL,0); + curr->helpid = %(helpid)d; + curr->handler = &login_handler; +--login ENDS-- +--menu BEGINS-- + +/* ------- MENU %(name)s ----- */ + add_named_menu("%(name)s","%(title)s",-1); +--menu ENDS-- +--footer BEGINS-- +/* ------- END OF MENU declarations ----- */ + +// Check if we should skip the menu altogether + quit = 0; // Dont skip the menu + if (getshiftflags() & skipbits) { // we must skip the menu altogther and execute skipcmd + dotrv = execdotcmd(skipcmd,".beep%.exit",NULL); // Worst case we beep and exit + if (dotrv == QUIT_CMD) quit = 1; + } + +// Switch vide mode if required + if (vmode != 0xFF) setvideomode(vmode); + +// Do we have a startfile to display? + if (startfile[0] != '\0') runhelp(startfile); + +// The main loop + while (quit == 0) { // As long as quit is zero repeat + curr = showmenus(find_menu_num("main")); // Initial menu is the one called "main" + + if (curr) { + if (curr->action == OPT_RUN) { + ecmd = (char *)malloc(sizeof(char)*MAX_CMD_LINE_LENGTH); + gencommand(curr,ecmd); + temp = (curr->extra_data ? ((pt_xtra)curr->extra_data)->ipappend : 0); + runsyslinuximage(ecmd,temp); + // kernel not found so execute the appropriate dot command + dotrv = execdotcmd(onerrcmd,".quit",ecmd); // pass bad cmdline as arg + if (dotrv== QUIT_CMD) quit = 1; + free(ecmd); ecmd = NULL; + } + else csprint("Error in programming!",0x07); + } else { + // find effective exit command + ecmd = ( isallowed(username,"root") ? exitcmdroot : exitcmd); + dotrv = execdotcmd(ecmd,".repeat",NULL); + quit = (dotrv == QUIT_CMD ? 1 : 0); // should we exit now + } + } + +// Deallocate space used and quit + close_passwords(); + close_help(); + close_menusystem(); + return 0; +} + +--footer ENDS-- |