2 * Pageant: the PuTTY Authentication Agent.
12 #include "putty.h" // FIXME
16 #define IDI_MAINICON 200
17 #define IDI_TRAYICON 201
19 #define WM_XUSER (WM_USER + 0x2000)
20 #define WM_SYSTRAY (WM_XUSER + 6)
21 #define WM_SYSTRAY2 (WM_XUSER + 7)
23 #define AGENT_COPYDATA_ID 0x804e50ba /* random goop */
26 * FIXME: maybe some day we can sort this out ...
28 #define AGENT_MAX_MSGLEN 8192
30 #define IDM_CLOSE 0x0010
31 #define IDM_VIEWKEYS 0x0020
32 #define IDM_ADDKEY 0x0030
33 #define IDM_ABOUT 0x0040
35 #define APPNAME "Pageant"
38 * SSH1 agent messages.
40 #define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1
41 #define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2
42 #define SSH1_AGENTC_RSA_CHALLENGE 3
43 #define SSH1_AGENT_RSA_RESPONSE 4
44 #define SSH1_AGENTC_ADD_RSA_IDENTITY 7
45 #define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8
46 #define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */
49 * Messages common to SSH1 and OpenSSH's SSH2.
51 #define SSH_AGENT_FAILURE 5
52 #define SSH_AGENT_SUCCESS 6
55 * OpenSSH's SSH2 agent messages.
57 #define SSH2_AGENTC_REQUEST_IDENTITIES 11
58 #define SSH2_AGENT_IDENTITIES_ANSWER 12
59 #define SSH2_AGENTC_SIGN_REQUEST 13
60 #define SSH2_AGENT_SIGN_RESPONSE 14
61 #define SSH2_AGENTC_ADD_IDENTITY 17
62 #define SSH2_AGENTC_REMOVE_IDENTITY 18
63 #define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19
67 static HINSTANCE instance;
71 static HMENU systray_menu;
73 static tree234 *rsakeys, *ssh2keys;
75 static int has_security;
77 typedef DWORD (WINAPI *gsi_fn_t)
78 (HANDLE, SE_OBJECT_TYPE, SECURITY_INFORMATION,
79 PSID *, PSID *, PACL *, PACL *,
80 PSECURITY_DESCRIPTOR *);
81 static gsi_fn_t getsecurityinfo;
85 * We need this to link with the RSA code, because rsaencrypt()
86 * pads its data with random bytes. Since we only use rsadecrypt()
87 * and the signing functions, which are deterministic, this should
90 * If it _is_ called, there is a _serious_ problem, because it
91 * won't generate true random numbers. So we must scream, panic,
92 * and exit immediately if that should happen.
94 int random_byte(void) {
95 MessageBox(hwnd, "Internal Error", APPNAME, MB_OK | MB_ICONERROR);
100 * Blob structure for passing to the asymmetric SSH2 key compare
101 * function, prototyped here.
107 static int cmpkeys_ssh2_asymm(void *av, void *bv);
110 * This function is needed to link with the DES code. We need not
111 * have it do anything at all.
113 void logevent(char *msg) {
116 #define GET_32BIT(cp) \
117 (((unsigned long)(unsigned char)(cp)[0] << 24) | \
118 ((unsigned long)(unsigned char)(cp)[1] << 16) | \
119 ((unsigned long)(unsigned char)(cp)[2] << 8) | \
120 ((unsigned long)(unsigned char)(cp)[3]))
122 #define PUT_32BIT(cp, value) { \
123 (cp)[0] = (unsigned char)((value) >> 24); \
124 (cp)[1] = (unsigned char)((value) >> 16); \
125 (cp)[2] = (unsigned char)((value) >> 8); \
126 (cp)[3] = (unsigned char)(value); }
128 #define PASSPHRASE_MAXLEN 512
130 struct PassphraseProcStruct {
136 * Dialog-box function for the Licence box.
138 static int CALLBACK LicenceProc (HWND hwnd, UINT msg,
139 WPARAM wParam, LPARAM lParam) {
144 switch (LOWORD(wParam)) {
158 * Dialog-box function for the About box.
160 static int CALLBACK AboutProc (HWND hwnd, UINT msg,
161 WPARAM wParam, LPARAM lParam) {
164 SetDlgItemText (hwnd, 100, ver);
167 switch (LOWORD(wParam)) {
170 DestroyWindow (hwnd);
173 EnableWindow(hwnd, 0);
174 DialogBox (instance, MAKEINTRESOURCE(214), NULL, LicenceProc);
175 EnableWindow(hwnd, 1);
176 SetActiveWindow(hwnd);
182 DestroyWindow (hwnd);
189 * Dialog-box function for the passphrase box.
191 static int CALLBACK PassphraseProc(HWND hwnd, UINT msg,
192 WPARAM wParam, LPARAM lParam) {
193 static char *passphrase;
194 struct PassphraseProcStruct *p;
201 { /* centre the window */
205 hw = GetDesktopWindow();
206 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
207 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
208 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
209 rd.right-rd.left, rd.bottom-rd.top, TRUE);
212 SetForegroundWindow(hwnd);
213 SetWindowPos (hwnd, HWND_TOP, 0, 0, 0, 0,
214 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
215 p = (struct PassphraseProcStruct *)lParam;
216 passphrase = p->passphrase;
218 SetDlgItemText(hwnd, 101, p->comment);
222 switch (LOWORD(wParam)) {
232 case 102: /* edit box */
233 if (HIWORD(wParam) == EN_CHANGE) {
234 GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1);
235 passphrase[PASSPHRASE_MAXLEN-1] = '\0';
248 * Update the visible key list.
250 static void keylist_update(void) {
252 struct ssh2_userkey *skey;
256 SendDlgItemMessage(keylist, 100, LB_RESETCONTENT, 0, 0);
257 for (rkey = first234(rsakeys, &e); rkey; rkey = next234(&e)) {
258 char listentry[512], *p;
260 * Replace two spaces in the fingerprint with tabs, for
261 * nice alignment in the box.
263 strcpy(listentry, "ssh1\t");
264 p = listentry+strlen(listentry);
265 rsa_fingerprint(p, sizeof(listentry)-(p-listentry), rkey);
266 p = strchr(listentry, ' '); if (p) *p = '\t';
267 p = strchr(listentry, ' '); if (p) *p = '\t';
268 SendDlgItemMessage (keylist, 100, LB_ADDSTRING,
269 0, (LPARAM)listentry);
271 for (skey = first234(ssh2keys, &e); skey; skey = next234(&e)) {
272 char listentry[512], *p;
275 * Replace two spaces in the fingerprint with tabs, for
276 * nice alignment in the box.
278 p = skey->alg->fingerprint(skey->data);
279 strncpy(listentry, p, sizeof(listentry));
280 p = strchr(listentry, ' '); if (p) *p = '\t';
281 p = strchr(listentry, ' '); if (p) *p = '\t';
282 len = strlen(listentry);
283 if (len < sizeof(listentry)-2) {
284 listentry[len] = '\t';
285 strncpy(listentry+len+1, skey->comment, sizeof(listentry)-len-1);
287 SendDlgItemMessage (keylist, 100, LB_ADDSTRING,
288 0, (LPARAM)listentry);
290 SendDlgItemMessage (keylist, 100, LB_SETCURSEL, (WPARAM) -1, 0);
295 * This function loads a key from a file and adds it.
297 static void add_keyfile(char *filename) {
298 char passphrase[PASSPHRASE_MAXLEN];
300 struct ssh2_userkey *skey;
305 struct PassphraseProcStruct pps;
308 ver = keyfile_version(filename);
310 MessageBox(NULL, "Couldn't load private key.", APPNAME,
311 MB_OK | MB_ICONERROR);
316 needs_pass = rsakey_encrypted(filename, &comment);
318 needs_pass = ssh2_userkey_encrypted(filename, &comment);
321 rkey = smalloc(sizeof(*rkey));
322 pps.passphrase = passphrase;
323 pps.comment = comment;
327 dlgret = DialogBoxParam(instance, MAKEINTRESOURCE(210),
328 NULL, PassphraseProc,
331 if (comment) sfree(comment);
334 return; /* operation cancelled */
339 ret = loadrsakey(filename, rkey, passphrase);
341 skey = ssh2_load_userkey(filename, passphrase);
342 if (skey == SSH2_WRONG_PASSPHRASE)
351 if (comment) sfree(comment);
353 MessageBox(NULL, "Couldn't load private key.", APPNAME,
354 MB_OK | MB_ICONERROR);
360 if (add234(rsakeys, rkey) != rkey)
361 sfree(rkey); /* already present, don't waste RAM */
363 if (add234(ssh2keys, skey) != skey) {
364 skey->alg->freekey(skey->data);
365 sfree(skey); /* already present, don't waste RAM */
371 * This is the main agent function that answers messages.
373 static void answer_msg(void *msg) {
374 unsigned char *p = msg;
375 unsigned char *ret = msg;
379 * Get the message type.
385 case SSH1_AGENTC_REQUEST_RSA_IDENTITIES:
387 * Reply with SSH1_AGENT_RSA_IDENTITIES_ANSWER.
395 * Count up the number and length of keys we hold.
398 for (key = first234(rsakeys, &e); key; key = next234(&e)) {
400 len += 4; /* length field */
401 len += ssh1_bignum_length(key->exponent);
402 len += ssh1_bignum_length(key->modulus);
403 len += 4 + strlen(key->comment);
407 * Packet header is the obvious five bytes, plus four
408 * bytes for the key count.
411 if (len > AGENT_MAX_MSGLEN)
412 goto failure; /* aaargh! too much stuff! */
413 PUT_32BIT(ret, len-4);
414 ret[4] = SSH1_AGENT_RSA_IDENTITIES_ANSWER;
415 PUT_32BIT(ret+5, nkeys);
417 for (key = first234(rsakeys, &e); key; key = next234(&e)) {
418 PUT_32BIT(p, ssh1_bignum_bitcount(key->modulus));
420 p += ssh1_write_bignum(p, key->exponent);
421 p += ssh1_write_bignum(p, key->modulus);
422 PUT_32BIT(p, strlen(key->comment));
423 memcpy(p+4, key->comment, strlen(key->comment));
424 p += 4 + strlen(key->comment);
428 case SSH2_AGENTC_REQUEST_IDENTITIES:
430 * Reply with SSH2_AGENT_IDENTITIES_ANSWER.
434 struct ssh2_userkey *key;
440 * Count up the number and length of keys we hold.
443 for (key = first234(ssh2keys, &e); key; key = next234(&e)) {
445 len += 4; /* length field */
446 blob = key->alg->public_blob(key->data, &bloblen);
449 len += 4 + strlen(key->comment);
453 * Packet header is the obvious five bytes, plus four
454 * bytes for the key count.
457 if (len > AGENT_MAX_MSGLEN)
458 goto failure; /* aaargh! too much stuff! */
459 PUT_32BIT(ret, len-4);
460 ret[4] = SSH2_AGENT_IDENTITIES_ANSWER;
461 PUT_32BIT(ret+5, nkeys);
463 for (key = first234(ssh2keys, &e); key; key = next234(&e)) {
464 blob = key->alg->public_blob(key->data, &bloblen);
465 PUT_32BIT(p, bloblen);
467 memcpy(p, blob, bloblen);
470 PUT_32BIT(p, strlen(key->comment));
471 memcpy(p+4, key->comment, strlen(key->comment));
472 p += 4 + strlen(key->comment);
476 case SSH1_AGENTC_RSA_CHALLENGE:
478 * Reply with either SSH1_AGENT_RSA_RESPONSE or
479 * SSH_AGENT_FAILURE, depending on whether we have that key
483 struct RSAKey reqkey, *key;
484 Bignum challenge, response;
485 unsigned char response_source[48], response_md5[16];
486 struct MD5Context md5c;
490 p += ssh1_read_bignum(p, &reqkey.exponent);
491 p += ssh1_read_bignum(p, &reqkey.modulus);
492 p += ssh1_read_bignum(p, &challenge);
493 memcpy(response_source+32, p, 16); p += 16;
494 if (GET_32BIT(p) != 1 ||
495 (key = find234(rsakeys, &reqkey, NULL)) == NULL) {
496 freebn(reqkey.exponent);
497 freebn(reqkey.modulus);
501 response = rsadecrypt(challenge, key);
502 for (i = 0; i < 32; i++)
503 response_source[i] = bignum_byte(response, 31-i);
506 MD5Update(&md5c, response_source, 48);
507 MD5Final(response_md5, &md5c);
508 memset(response_source, 0, 48); /* burn the evidence */
509 freebn(response); /* and that evidence */
510 freebn(challenge); /* yes, and that evidence */
511 freebn(reqkey.exponent); /* and free some memory ... */
512 freebn(reqkey.modulus); /* ... while we're at it. */
515 * Packet is the obvious five byte header, plus sixteen
519 PUT_32BIT(ret, len-4);
520 ret[4] = SSH1_AGENT_RSA_RESPONSE;
521 memcpy(ret+5, response_md5, 16);
524 case SSH2_AGENTC_SIGN_REQUEST:
526 * Reply with either SSH2_AGENT_RSA_RESPONSE or
527 * SSH_AGENT_FAILURE, depending on whether we have that key
531 struct ssh2_userkey *key;
533 unsigned char *data, *signature;
534 int datalen, siglen, len;
536 b.len = GET_32BIT(p);
540 datalen = GET_32BIT(p);
543 key = find234(ssh2keys, &b, cmpkeys_ssh2_asymm);
546 signature = key->alg->sign(key->data, data, datalen, &siglen);
548 PUT_32BIT(ret, len-4);
549 ret[4] = SSH2_AGENT_SIGN_RESPONSE;
550 PUT_32BIT(ret+5, siglen);
551 memcpy(ret+5+4, signature, siglen);
555 case SSH1_AGENTC_ADD_RSA_IDENTITY:
557 * Add to the list and return SSH_AGENT_SUCCESS, or
558 * SSH_AGENT_FAILURE if the key was malformed.
563 key = smalloc(sizeof(struct RSAKey));
564 memset(key, 0, sizeof(key));
565 p += makekey(p, key, NULL, 1);
566 p += makeprivate(p, key);
567 p += ssh1_read_bignum(p, key->iqmp); /* p^-1 mod q */
568 p += ssh1_read_bignum(p, key->p); /* p */
569 p += ssh1_read_bignum(p, key->q); /* q */
570 comment = smalloc(GET_32BIT(p));
572 memcpy(comment, p+4, GET_32BIT(p));
573 key->comment = comment;
576 ret[4] = SSH_AGENT_FAILURE;
577 if (add234(rsakeys, key) == key) {
579 ret[4] = SSH_AGENT_SUCCESS;
586 case SSH2_AGENTC_ADD_IDENTITY:
588 * Add to the list and return SSH_AGENT_SUCCESS, or
589 * SSH_AGENT_FAILURE if the key was malformed.
592 struct ssh2_userkey *key;
597 key = smalloc(sizeof(struct ssh2_userkey));
599 alglen = GET_32BIT(p); p += 4;
600 alg = p; p += alglen;
601 /* Add further algorithm names here. */
602 if (alglen == 7 && !memcmp(alg, "ssh-rsa", 7))
609 bloblen = GET_32BIT((unsigned char *)msg) - (p-(unsigned char *)msg-4);
610 key->data = key->alg->openssh_createkey(&p, &bloblen);
615 commlen = GET_32BIT(p); p += 4;
617 comment = smalloc(commlen+1);
619 memcpy(comment, p, commlen);
620 comment[commlen] = '\0';
622 key->comment = comment;
625 ret[4] = SSH_AGENT_FAILURE;
626 if (add234(ssh2keys, key) == key) {
628 ret[4] = SSH_AGENT_SUCCESS;
630 key->alg->freekey(key->data);
636 case SSH1_AGENTC_REMOVE_RSA_IDENTITY:
638 * Remove from the list and return SSH_AGENT_SUCCESS, or
639 * perhaps SSH_AGENT_FAILURE if it wasn't in the list to
643 struct RSAKey reqkey, *key;
645 p += makekey(p, &reqkey, NULL, 0);
646 key = find234(rsakeys, &reqkey, NULL);
647 freebn(reqkey.exponent);
648 freebn(reqkey.modulus);
650 ret[4] = SSH_AGENT_FAILURE;
652 del234(rsakeys, key);
656 ret[4] = SSH_AGENT_SUCCESS;
660 case SSH2_AGENTC_REMOVE_IDENTITY:
662 * Remove from the list and return SSH_AGENT_SUCCESS, or
663 * perhaps SSH_AGENT_FAILURE if it wasn't in the list to
667 struct ssh2_userkey *key;
670 b.len = GET_32BIT(p);
674 key = find234(ssh2keys, &b, cmpkeys_ssh2_asymm);
679 ret[4] = SSH_AGENT_FAILURE;
681 del234(ssh2keys, key);
683 key->alg->freekey(key->data);
685 ret[4] = SSH_AGENT_SUCCESS;
689 case SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES:
691 * Remove all SSH1 keys. Always returns success.
697 while ( (rkey = first234(rsakeys, &e)) != NULL ) {
698 del234(rsakeys, rkey);
705 ret[4] = SSH_AGENT_SUCCESS;
708 case SSH2_AGENTC_REMOVE_ALL_IDENTITIES:
710 * Remove all SSH2 keys. Always returns success.
713 struct ssh2_userkey *skey;
716 while ( (skey = first234(ssh2keys, &e)) != NULL ) {
717 del234(ssh2keys, skey);
718 skey->alg->freekey(skey->data);
724 ret[4] = SSH_AGENT_SUCCESS;
730 * Unrecognised message. Return SSH_AGENT_FAILURE.
733 ret[4] = SSH_AGENT_FAILURE;
739 * Key comparison function for the 2-3-4 tree of RSA keys.
741 static int cmpkeys_rsa(void *av, void *bv) {
742 struct RSAKey *a = (struct RSAKey *)av;
743 struct RSAKey *b = (struct RSAKey *)bv;
750 * Compare by length of moduli.
752 alen = ssh1_bignum_bitcount(am);
753 blen = ssh1_bignum_bitcount(bm);
754 if (alen > blen) return +1; else if (alen < blen) return -1;
756 * Now compare by moduli themselves.
758 alen = (alen + 7) / 8; /* byte count */
761 abyte = bignum_byte(am, alen);
762 bbyte = bignum_byte(bm, alen);
763 if (abyte > bbyte) return +1; else if (abyte < bbyte) return -1;
772 * Key comparison function for the 2-3-4 tree of SSH2 keys.
774 static int cmpkeys_ssh2(void *av, void *bv) {
775 struct ssh2_userkey *a = (struct ssh2_userkey *)av;
776 struct ssh2_userkey *b = (struct ssh2_userkey *)bv;
779 unsigned char *ablob, *bblob;
783 * Compare purely by public blob.
785 ablob = a->alg->public_blob(a->data, &alen);
786 bblob = b->alg->public_blob(b->data, &blen);
789 for (i = 0; i < alen && i < blen; i++) {
790 if (ablob[i] < bblob[i]) {
792 } else if (ablob[i] > bblob[i]) {
796 if (c == 0 && i < alen) c = +1; /* a is longer */
797 if (c == 0 && i < blen) c = -1; /* a is longer */
806 * Key comparison function for looking up a blob in the 2-3-4 tree
809 static int cmpkeys_ssh2_asymm(void *av, void *bv) {
810 struct blob *a = (struct blob *)av;
811 struct ssh2_userkey *b = (struct ssh2_userkey *)bv;
814 unsigned char *ablob, *bblob;
818 * Compare purely by public blob.
822 bblob = b->alg->public_blob(b->data, &blen);
825 for (i = 0; i < alen && i < blen; i++) {
826 if (ablob[i] < bblob[i]) {
828 } else if (ablob[i] > bblob[i]) {
832 if (c == 0 && i < alen) c = +1; /* a is longer */
833 if (c == 0 && i < blen) c = -1; /* a is longer */
840 static void error(char *s) {
841 MessageBox(hwnd, s, APPNAME, MB_OK | MB_ICONERROR);
845 * Prompt for a key file to add, and add it.
847 static void prompt_add_keyfile(void) {
849 char filename[FILENAME_MAX];
850 memset(&of, 0, sizeof(of));
851 #ifdef OPENFILENAME_SIZE_VERSION_400
852 of.lStructSize = OPENFILENAME_SIZE_VERSION_400;
854 of.lStructSize = sizeof(of);
857 of.lpstrFilter = "All Files\0*\0\0\0";
858 of.lpstrCustomFilter = NULL;
860 of.lpstrFile = filename; *filename = '\0';
861 of.nMaxFile = sizeof(filename);
862 of.lpstrFileTitle = NULL;
863 of.lpstrInitialDir = NULL;
864 of.lpstrTitle = "Select Private Key File";
866 if (GetOpenFileName(&of)) {
867 add_keyfile(filename);
873 * Dialog-box function for the key list box.
875 static int CALLBACK KeyListProc(HWND hwnd, UINT msg,
876 WPARAM wParam, LPARAM lParam) {
879 struct ssh2_userkey *skey;
886 { /* centre the window */
890 hw = GetDesktopWindow();
891 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
892 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
893 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
894 rd.right-rd.left, rd.bottom-rd.top, TRUE);
899 static int tabs[] = {35, 60, 210};
900 SendDlgItemMessage (hwnd, 100, LB_SETTABSTOPS,
901 sizeof(tabs)/sizeof(*tabs), (LPARAM) tabs);
906 switch (LOWORD(wParam)) {
912 case 101: /* add key */
913 if (HIWORD(wParam) == BN_CLICKED ||
914 HIWORD(wParam) == BN_DOUBLECLICKED) {
915 prompt_add_keyfile();
918 case 102: /* remove key */
919 if (HIWORD(wParam) == BN_CLICKED ||
920 HIWORD(wParam) == BN_DOUBLECLICKED) {
921 int n = SendDlgItemMessage (hwnd, 100, LB_GETCURSEL, 0, 0);
926 for (rkey = first234(rsakeys, &e); rkey; rkey = next234(&e))
930 del234(rsakeys, rkey);
934 for (skey = first234(ssh2keys, &e); skey; skey = next234(&e))
938 del234(ssh2keys, skey);
939 skey->alg->freekey(skey->data);
956 static LRESULT CALLBACK WndProc (HWND hwnd, UINT message,
957 WPARAM wParam, LPARAM lParam) {
959 static int menuinprogress;
963 if (lParam == WM_RBUTTONUP) {
965 GetCursorPos(&cursorpos);
966 PostMessage(hwnd, WM_SYSTRAY2, cursorpos.x, cursorpos.y);
967 } else if (lParam == WM_LBUTTONDBLCLK) {
968 /* Equivalent to IDM_VIEWKEYS. */
969 PostMessage(hwnd, WM_COMMAND, IDM_VIEWKEYS, 0);
973 if (!menuinprogress) {
975 SetForegroundWindow(hwnd);
976 ret = TrackPopupMenu(systray_menu,
977 TPM_RIGHTALIGN | TPM_BOTTOMALIGN |
979 wParam, lParam, 0, hwnd, NULL);
985 switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */
987 SendMessage(hwnd, WM_CLOSE, 0, 0);
991 keylist = CreateDialog (instance, MAKEINTRESOURCE(211),
993 ShowWindow (keylist, SW_SHOWNORMAL);
995 * Sometimes the window comes up minimised / hidden
996 * for no obvious reason. Prevent this.
998 SetForegroundWindow(keylist);
999 SetWindowPos (keylist, HWND_TOP, 0, 0, 0, 0,
1000 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
1004 prompt_add_keyfile();
1008 aboutbox = CreateDialog (instance, MAKEINTRESOURCE(213),
1010 ShowWindow (aboutbox, SW_SHOWNORMAL);
1012 * Sometimes the window comes up minimised / hidden
1013 * for no obvious reason. Prevent this.
1015 SetForegroundWindow(aboutbox);
1016 SetWindowPos (aboutbox, HWND_TOP, 0, 0, 0, 0,
1017 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
1023 PostQuitMessage (0);
1027 COPYDATASTRUCT *cds;
1030 HANDLE filemap, proc;
1031 PSID mapowner, procowner;
1032 PSECURITY_DESCRIPTOR psd1 = NULL, psd2 = NULL;
1035 cds = (COPYDATASTRUCT *)lParam;
1036 if (cds->dwData != AGENT_COPYDATA_ID)
1037 return 0; /* not our message, mate */
1038 mapname = (char *)cds->lpData;
1039 if (mapname[cds->cbData - 1] != '\0')
1040 return 0; /* failure to be ASCIZ! */
1042 debug(("mapname is :%s:\r\n", mapname));
1044 filemap = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, mapname);
1046 debug(("filemap is %p\r\n", filemap));
1048 if (filemap != NULL && filemap != INVALID_HANDLE_VALUE) {
1052 if ((proc = OpenProcess(MAXIMUM_ALLOWED, FALSE,
1053 GetCurrentProcessId())) == NULL) {
1055 debug(("couldn't get handle for process\r\n"));
1059 if (getsecurityinfo(proc, SE_KERNEL_OBJECT,
1060 OWNER_SECURITY_INFORMATION,
1061 &procowner, NULL, NULL, NULL,
1062 &psd2) != ERROR_SUCCESS) {
1064 debug(("couldn't get owner info for process\r\n"));
1067 return 0; /* unable to get security info */
1070 if ((rc = getsecurityinfo(filemap, SE_KERNEL_OBJECT,
1071 OWNER_SECURITY_INFORMATION,
1072 &mapowner, NULL, NULL, NULL,
1073 &psd1) != ERROR_SUCCESS)) {
1075 debug(("couldn't get owner info for filemap: %d\r\n", rc));
1080 debug(("got security stuff\r\n"));
1082 if (!EqualSid(mapowner, procowner))
1083 return 0; /* security ID mismatch! */
1085 debug(("security stuff matched\r\n"));
1091 debug(("security APIs not present\r\n"));
1095 p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0);
1097 debug(("p is %p\r\n", p));
1098 {int i; for(i=0;i<5;i++)debug(("p[%d]=%02x\r\n", i, ((unsigned char *)p)[i]));}
1104 CloseHandle(filemap);
1109 return DefWindowProc (hwnd, message, wParam, lParam);
1112 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) {
1119 * Determine whether we're an NT system (should have security
1120 * APIs) or a non-NT system (don't do security).
1122 memset(&osi, 0, sizeof(OSVERSIONINFO));
1123 osi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1124 if (GetVersionEx(&osi) && osi.dwPlatformId==VER_PLATFORM_WIN32_NT) {
1125 has_security = TRUE;
1127 has_security = FALSE;
1132 * Attempt to ge the security API we need.
1134 advapi = LoadLibrary("ADVAPI32.DLL");
1135 getsecurityinfo = (gsi_fn_t)GetProcAddress(advapi, "GetSecurityInfo");
1136 if (!getsecurityinfo) {
1138 "Unable to access security APIs. Pageant will\n"
1139 "not run, in case it causes a security breach.",
1140 "Pageant Fatal Error", MB_ICONERROR | MB_OK);
1145 "This program has been compiled for Win9X and will\n"
1146 "not run on NT, in case it causes a security breach.",
1147 "Pageant Fatal Error", MB_ICONERROR | MB_OK);
1154 * First bomb out totally if we are already running.
1156 if (FindWindow("Pageant", "Pageant")) {
1157 MessageBox(NULL, "Pageant is already running", "Pageant Error",
1158 MB_ICONERROR | MB_OK);
1159 if (advapi) FreeLibrary(advapi);
1167 wndclass.lpfnWndProc = WndProc;
1168 wndclass.cbClsExtra = 0;
1169 wndclass.cbWndExtra = 0;
1170 wndclass.hInstance = inst;
1171 wndclass.hIcon = LoadIcon (inst,
1172 MAKEINTRESOURCE(IDI_MAINICON));
1173 wndclass.hCursor = LoadCursor (NULL, IDC_IBEAM);
1174 wndclass.hbrBackground = GetStockObject (BLACK_BRUSH);
1175 wndclass.lpszMenuName = NULL;
1176 wndclass.lpszClassName = APPNAME;
1178 RegisterClass (&wndclass);
1181 hwnd = keylist = NULL;
1183 hwnd = CreateWindow (APPNAME, APPNAME,
1184 WS_OVERLAPPEDWINDOW | WS_VSCROLL,
1185 CW_USEDEFAULT, CW_USEDEFAULT,
1186 100, 100, NULL, NULL, inst, NULL);
1188 /* Set up a system tray icon */
1191 NOTIFYICONDATA tnid;
1194 #ifdef NIM_SETVERSION
1196 res = Shell_NotifyIcon(NIM_SETVERSION, &tnid);
1199 tnid.cbSize = sizeof(NOTIFYICONDATA);
1201 tnid.uID = 1; /* unique within this systray use */
1202 tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
1203 tnid.uCallbackMessage = WM_SYSTRAY;
1204 tnid.hIcon = hicon = LoadIcon (instance, MAKEINTRESOURCE(201));
1205 strcpy(tnid.szTip, "Pageant (PuTTY authentication agent)");
1207 res = Shell_NotifyIcon(NIM_ADD, &tnid);
1212 systray_menu = CreatePopupMenu();
1213 /* accelerators used: vkxa */
1214 AppendMenu (systray_menu, MF_ENABLED, IDM_VIEWKEYS, "&View Keys");
1215 AppendMenu (systray_menu, MF_ENABLED, IDM_ADDKEY, "Add &Key");
1216 AppendMenu (systray_menu, MF_ENABLED, IDM_ABOUT, "&About");
1217 AppendMenu (systray_menu, MF_ENABLED, IDM_CLOSE, "E&xit");
1220 ShowWindow (hwnd, SW_HIDE);
1223 * Initialise storage for RSA keys.
1225 rsakeys = newtree234(cmpkeys_rsa);
1226 ssh2keys = newtree234(cmpkeys_ssh2);
1229 * Process the command line and add keys as listed on it.
1236 while (*p && isspace(*p)) p++;
1237 if (*p && !isspace(*p)) {
1238 char *q = p, *pp = p;
1239 while (*p && (inquotes || !isspace(*p)))
1242 inquotes = !inquotes;
1258 * Main message loop.
1260 while (GetMessage(&msg, NULL, 0, 0) == 1) {
1261 TranslateMessage(&msg);
1262 DispatchMessage(&msg);
1265 /* Clean up the system tray icon */
1267 NOTIFYICONDATA tnid;
1269 tnid.cbSize = sizeof(NOTIFYICONDATA);
1273 Shell_NotifyIcon(NIM_DELETE, &tnid);
1275 DestroyMenu(systray_menu);
1278 if (advapi) FreeLibrary(advapi);