X-Git-Url: http://andersk.mit.edu/gitweb/libfaim.git/blobdiff_plain/b1a4ea45bdcda6c25961479cefa89d597c511e30..55e77c8a84214c872908b38570a5e49b90dd5241:/aim_rxhandlers.c diff --git a/aim_rxhandlers.c b/aim_rxhandlers.c index febeac4..df0c499 100644 --- a/aim_rxhandlers.c +++ b/aim_rxhandlers.c @@ -13,7 +13,7 @@ * Bleck functions get called when there's no non-bleck functions * around to cleanup the mess... */ -int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...) +faim_internal int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...) { u_short family; u_short subtype; @@ -181,62 +181,68 @@ int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...) return 1; } -int aim_conn_addhandler(struct aim_session_t *sess, +faim_export int aim_conn_addhandler(struct aim_session_t *sess, struct aim_conn_t *conn, u_short family, u_short type, rxcallback_t newhandler, u_short flags) { - struct aim_rxcblist_t *new,*cur; + struct aim_rxcblist_t *newcb; if (!conn) return -1; faimdprintf(1, "aim_conn_addhandler: adding for %04x/%04x\n", family, type); - new = (struct aim_rxcblist_t *)calloc(1, sizeof(struct aim_rxcblist_t)); - new->family = family; - new->type = type; - new->flags = flags; + if (!(newcb = (struct aim_rxcblist_t *)calloc(1, sizeof(struct aim_rxcblist_t)))) + return -1; + newcb->family = family; + newcb->type = type; + newcb->flags = flags; if (!newhandler) - new->handler = &bleck; + newcb->handler = &bleck; else - new->handler = newhandler; - new->next = NULL; + newcb->handler = newhandler; + newcb->next = NULL; - cur = conn->handlerlist; - if (!cur) - conn->handlerlist = new; - else - { - while (cur->next) - cur = cur->next; - cur->next = new; - } + if (!conn->handlerlist) + conn->handlerlist = newcb; + else { + struct aim_rxcblist_t *cur; + + cur = conn->handlerlist; + + while (cur->next) + cur = cur->next; + cur->next = newcb; + } return 0; } -int aim_clearhandlers(struct aim_conn_t *conn) +faim_export int aim_clearhandlers(struct aim_conn_t *conn) { - struct aim_rxcblist_t *cur,*tmp; + struct aim_rxcblist_t *cur; + if (!conn) return -1; - cur = conn->handlerlist; - while(cur) - { - tmp = cur->next; - free(cur); - cur = tmp; - } + for (cur = conn->handlerlist; cur; ) { + struct aim_rxcblist_t *tmp; + + tmp = cur->next; + free(cur); + cur = tmp; + } + conn->handlerlist = NULL; + return 0; } -rxcallback_t aim_callhandler(struct aim_conn_t *conn, - u_short family, - u_short type) +faim_internal rxcallback_t aim_callhandler(struct aim_conn_t *conn, + u_short family, + u_short type) { struct aim_rxcblist_t *cur; @@ -255,14 +261,15 @@ rxcallback_t aim_callhandler(struct aim_conn_t *conn, if (type==0xffff) return NULL; + return aim_callhandler(conn, family, 0xffff); } -int aim_callhandler_noparam(struct aim_session_t *sess, - struct aim_conn_t *conn, - u_short family, - u_short type, - struct command_rx_struct *ptr) +faim_internal int aim_callhandler_noparam(struct aim_session_t *sess, + struct aim_conn_t *conn, + u_short family, + u_short type, + struct command_rx_struct *ptr) { rxcallback_t userfunc = NULL; userfunc = aim_callhandler(conn, family, type); @@ -294,7 +301,7 @@ int aim_callhandler_noparam(struct aim_session_t *sess, TODO: Allow for NULL handlers. */ -int aim_rxdispatch(struct aim_session_t *sess) +faim_export int aim_rxdispatch(struct aim_session_t *sess) { int i = 0; struct command_rx_struct *workingPtr = NULL; @@ -336,48 +343,49 @@ int aim_rxdispatch(struct aim_session_t *sess) workingPtr->handled = 1; break; case AIM_CONN_TYPE_AUTH: { - u_long head; + unsigned long head; head = aimutil_get32(workingPtr->data); - if (head == 0x00000001) { + if ((head == 0x00000001) && (workingPtr->commandlen == 4)) { faimdprintf(1, "got connection ack on auth line\n"); - workingPtr->handled = 1; - } else { - u_short family,subtype; + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr); + } else if (workingPtr->hdr.oscar.type == 0x04) { + /* Used only by the older login protocol */ + workingPtr->handled = aim_authparse(sess, workingPtr); + } else { + unsigned short family,subtype; family = aimutil_get16(workingPtr->data); subtype = aimutil_get16(workingPtr->data+2); switch (family) { /* New login protocol */ -#ifdef SNACLOGIN case 0x0017: if (subtype == 0x0001) workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0x0001, workingPtr); else if (subtype == 0x0003) workingPtr->handled = aim_authparse(sess, workingPtr); else if (subtype == 0x0007) - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0x0007, workingPtr); + workingPtr->handled = aim_authkeyparse(sess, workingPtr); else workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr); break; -#else - /* XXX: this isnt foolproof */ - case 0x0001: - if (subtype == 0x0003) - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_GEN, AIM_CB_GEN_SERVERREADY, workingPtr); - else - workingPtr->handled = aim_authparse(sess, workingPtr); - break; - case 0x0007: - if (subtype == 0x0005) - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_ADM, AIM_CB_ADM_INFOCHANGE_REPLY, workingPtr); - break; - default: - /* Old login protocol */ - /* any user callbacks will be called from here */ - workingPtr->handled = aim_authparse(sess, workingPtr); + case 0x0007: + if (subtype == 0x0005) + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_ADM, AIM_CB_ADM_INFOCHANGE_REPLY, workingPtr); + break; + case AIM_CB_FAM_SPECIAL: + if (subtype == AIM_CB_SPECIAL_DEBUGCONN_CONNECT) { + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr); + break; + } /* others fall through */ + default: +#if 0 + /* Old login protocol */ + /* any user callbacks will be called from here */ + workingPtr->handled = aim_authparse(sess, workingPtr); #endif + break; } } break; @@ -397,7 +405,7 @@ int aim_rxdispatch(struct aim_session_t *sess) switch (family) { case 0x0000: /* not really a family, but it works */ if (subtype == 0x0001) - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0000, 0x0001, workingPtr); + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr); else workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr); break; @@ -416,11 +424,14 @@ int aim_rxdispatch(struct aim_session_t *sess) workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr); break; case 0x000a: - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000a, workingPtr); + workingPtr->handled = aim_parse_ratechange_middle(sess, workingPtr); break; case 0x000f: workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000f, workingPtr); break; + case 0x0010: + workingPtr->handled = aim_parse_evilnotify_middle(sess, workingPtr); + break; case 0x0013: workingPtr->handled = aim_parsemotd_middle(sess, workingPtr); break; @@ -428,10 +439,11 @@ int aim_rxdispatch(struct aim_session_t *sess) workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_GEN, AIM_CB_GEN_DEFAULT, workingPtr); break; } + break; case 0x0002: /* Family: Location */ switch (subtype) { case 0x0001: - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0001, workingPtr); + workingPtr->handled = aim_parse_locateerr(sess, workingPtr); break; case 0x0003: workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0003, workingPtr); @@ -443,13 +455,14 @@ int aim_rxdispatch(struct aim_session_t *sess) workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOC, AIM_CB_LOC_DEFAULT, workingPtr); break; } + break; case 0x0003: /* Family: Buddy List */ switch (subtype) { case 0x0001: workingPtr->handled = aim_parse_generalerrs(sess, workingPtr); break; case 0x0003: - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0003, 0x0003, workingPtr); + workingPtr->handled = aim_parse_buddyrights(sess, workingPtr); break; case 0x000b: /* oncoming buddy */ workingPtr->handled = aim_parse_oncoming_middle(sess, workingPtr); @@ -469,11 +482,17 @@ int aim_rxdispatch(struct aim_session_t *sess) case 0x0005: workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x0005, workingPtr); break; + case 0x0006: + workingPtr->handled = aim_parse_outgoing_im_middle(sess, workingPtr); + break; case 0x0007: workingPtr->handled = aim_parse_incoming_im_middle(sess, workingPtr); break; case 0x000a: - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x000a, workingPtr); + workingPtr->handled = aim_parse_missedcall(sess, workingPtr); + break; + case 0x000c: + workingPtr->handled = aim_parse_msgack_middle(sess, workingPtr); break; default: workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_MSG, AIM_CB_MSG_DEFAULT, workingPtr); @@ -483,7 +502,7 @@ int aim_rxdispatch(struct aim_session_t *sess) if (subtype == 0x0001) workingPtr->handled = aim_parse_generalerrs(sess, workingPtr); else if (subtype == 0x0003) - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0009, 0x0003, workingPtr); + workingPtr->handled = aim_parse_bosrights(sess, workingPtr); else workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BOS, AIM_CB_BOS_DEFAULT, workingPtr); break; @@ -499,7 +518,7 @@ int aim_rxdispatch(struct aim_session_t *sess) workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOK, AIM_CB_LOK_DEFAULT, workingPtr); } break; - case 0x000b: + case 0x000b: { if (subtype == 0x0001) workingPtr->handled = aim_parse_generalerrs(sess, workingPtr); else if (subtype == 0x0002) @@ -507,21 +526,24 @@ int aim_rxdispatch(struct aim_session_t *sess) else workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_STS, AIM_CB_STS_DEFAULT, workingPtr); break; + } + case AIM_CB_FAM_SPECIAL: + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr); + break; default: workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr); break; - } + } /* switch(family) */ break; - } + } /* AIM_CONN_TYPE_BOS */ case AIM_CONN_TYPE_CHATNAV: { u_short family; u_short subtype; family = aimutil_get16(workingPtr->data); subtype= aimutil_get16(workingPtr->data+2); - - if ((family == 0x0002) && (subtype == 0x0006)) { - workingPtr->handled = 1; - aim_conn_setstatus(workingPtr->conn, AIM_CONN_STATUS_READY); + + if ((family == 0x0000) && (subtype == 0x00001)) { + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr); } else if ((family == 0x000d) && (subtype == 0x0009)) { workingPtr->handled = aim_chatnav_parse_info(sess, workingPtr); } else { @@ -535,9 +557,9 @@ int aim_rxdispatch(struct aim_session_t *sess) family = aimutil_get16(workingPtr->data); subtype= aimutil_get16(workingPtr->data+2); - if ((family == 0x0000) && (subtype == 0x00001)) - workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0000, 0x0001, workingPtr); - else if (family == 0x0001) { + if ((family == 0x0000) && (subtype == 0x00001)) { + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr); + } else if (family == 0x0001) { if (subtype == 0x0001) workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0001, workingPtr); else if (subtype == 0x0003) @@ -545,7 +567,7 @@ int aim_rxdispatch(struct aim_session_t *sess) else if (subtype == 0x0007) workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr); else - printf("Chat: unknown snac %04x/%04x\n", family, subtype); + workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr); } else if (family == 0x000e) { if (subtype == 0x0002) workingPtr->handled = aim_chat_parse_infoupdate(sess, workingPtr); @@ -576,6 +598,10 @@ int aim_rxdispatch(struct aim_session_t *sess) break; } + case AIM_CONN_TYPE_RENDEZVOUS_OUT: { + /* not possible */ + break; + } default: printf("\ninternal error: unknown connection type (very bad.) (type = %d, fd = %d, commandlen = %02x)\n\n", workingPtr->conn->type, workingPtr->conn->fd, workingPtr->commandlen); workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr); @@ -595,8 +621,76 @@ int aim_rxdispatch(struct aim_session_t *sess) return 0; } -int aim_parsemotd_middle(struct aim_session_t *sess, - struct command_rx_struct *command, ...) +faim_internal int aim_parse_msgack_middle(struct aim_session_t *sess, struct command_rx_struct *command) +{ + rxcallback_t userfunc = NULL; + char sn[MAXSNLEN]; + unsigned short type; + int i = 10+8; /* skip SNAC and cookie */ + int ret = 1; + unsigned char snlen; + + type = aimutil_get16(command->data+i); + i += 2; + + snlen = aimutil_get8(command->data+i); + i++; + + memset(sn, 0, sizeof(sn)); + strncpy(sn, (char *)command->data+i, snlen); + + if ((userfunc = aim_callhandler(command->conn, 0x0004, 0x000c))) + ret = userfunc(sess, command, type, sn); + + return ret; +} + +faim_internal int aim_parse_ratechange_middle(struct aim_session_t *sess, struct command_rx_struct *command) +{ + rxcallback_t userfunc = NULL; + int ret = 1; + unsigned long newrate; + + if (command->commandlen != 0x2f) { + printf("faim: unknown rate change length 0x%04x\n", command->commandlen); + return 1; + } + + newrate = aimutil_get32(command->data+34); + + if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x000a))) + ret = userfunc(sess, command, newrate); + + return ret; +} + +faim_internal int aim_parse_evilnotify_middle(struct aim_session_t *sess, struct command_rx_struct *command) +{ + rxcallback_t userfunc = NULL; + int ret = 1, pos; + char *sn = NULL; + + if(command->commandlen < 12) /* a warning level dec sends this */ + return 1; + + if ((pos = aimutil_get8(command->data+ 12)) > MAXSNLEN) + return 1; + + if(!(sn = (char *)calloc(1, pos+1))) + return 1; + + memcpy(sn, command->data+13, pos); + + if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0010))) + ret = userfunc(sess, command, sn); + + free(sn); + + return ret; +} + +faim_internal int aim_parsemotd_middle(struct aim_session_t *sess, + struct command_rx_struct *command, ...) { rxcallback_t userfunc = NULL; char *msg; @@ -605,33 +699,44 @@ int aim_parsemotd_middle(struct aim_session_t *sess, u_short id; /* - * Dunno. + * Code. + * + * Valid values: + * 1 Mandatory upgrade + * 2 Advisory upgrade + * 3 System bulletin + * 4 Nothing's wrong ("top o the world" -- normal) + * */ id = aimutil_get16(command->data+10); /* * TLVs follow */ - tlvlist = aim_readtlvchain(command->data+12, command->commandlen-12); - - msg = aim_gettlv_str(tlvlist, 0x000b, 1); + if (!(tlvlist = aim_readtlvchain(command->data+12, command->commandlen-12))) + return ret; + + if (!(msg = aim_gettlv_str(tlvlist, 0x000b, 1))) { + aim_freetlvchain(&tlvlist); + return ret; + } userfunc = aim_callhandler(command->conn, 0x0001, 0x0013); if (userfunc) ret = userfunc(sess, command, id, msg); aim_freetlvchain(&tlvlist); + free(msg); - return ret; - + return ret; } -int aim_handleredirect_middle(struct aim_session_t *sess, +faim_internal int aim_handleredirect_middle(struct aim_session_t *sess, struct command_rx_struct *command, ...) { struct aim_tlv_t *tmptlv = NULL; int serviceid = 0x00; - char cookie[AIM_COOKIELEN]; + unsigned char cookie[AIM_COOKIELEN]; char *ip = NULL; rxcallback_t userfunc = NULL; struct aim_tlvlist_t *tlvlist; @@ -654,6 +759,7 @@ int aim_handleredirect_middle(struct aim_session_t *sess, if (!(ip = aim_gettlv_str(tlvlist, 0x0005, 1))) { printf("libfaim: major bug: no IP in tlvchain from redirect (service 0x%02x)\n", serviceid); + free(ip); aim_freetlvchain(&tlvlist); return ret; } @@ -661,6 +767,7 @@ int aim_handleredirect_middle(struct aim_session_t *sess, if (!(tmptlv = aim_gettlv(tlvlist, 0x0006, 1))) { printf("libfaim: major bug: no cookie in tlvchain from redirect (service 0x%02x)\n", serviceid); + free(ip); aim_freetlvchain(&tlvlist); return ret; } @@ -674,9 +781,10 @@ int aim_handleredirect_middle(struct aim_session_t *sess, */ userfunc = aim_callhandler(command->conn, 0x0001, 0x0005); if (userfunc) - ret = userfunc(sess, command, serviceid, ip, cookie, sess->pendingjoin); + ret = userfunc(sess, command, serviceid, ip, cookie, sess->pendingjoin, (int)sess->pendingjoinexchange); free(sess->pendingjoin); sess->pendingjoin = NULL; + sess->pendingjoinexchange = 0; } else { @@ -685,19 +793,20 @@ int aim_handleredirect_middle(struct aim_session_t *sess, ret = userfunc(sess, command, serviceid, ip, cookie); } - /* - * XXX: Is there a leak here? Where does IP get freed? - */ + free(ip); aim_freetlvchain(&tlvlist); return ret; } -int aim_parse_unknown(struct aim_session_t *sess, - struct command_rx_struct *command, ...) +faim_internal int aim_parse_unknown(struct aim_session_t *sess, + struct command_rx_struct *command, ...) { u_int i = 0; + if (!sess || !command) + return 1; + faimdprintf(1, "\nRecieved unknown packet:"); for (i = 0; i < command->commandlen; i++) @@ -714,8 +823,8 @@ int aim_parse_unknown(struct aim_session_t *sess, } -int aim_negchan_middle(struct aim_session_t *sess, - struct command_rx_struct *command) +faim_internal int aim_negchan_middle(struct aim_session_t *sess, + struct command_rx_struct *command) { struct aim_tlvlist_t *tlvlist; char *msg = NULL; @@ -749,8 +858,8 @@ int aim_negchan_middle(struct aim_session_t *sess, * Middle handler for 0x0001 snac of each family. * */ -int aim_parse_generalerrs(struct aim_session_t *sess, - struct command_rx_struct *command, ...) +faim_internal int aim_parse_generalerrs(struct aim_session_t *sess, + struct command_rx_struct *command, ...) { u_short family; u_short subtype;