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Overview
Comment: | uch11: Split backend code to seperate files. |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | ams/sdl |
Files: | files | file ages | folders |
SHA3-256: |
9e48bb874519eec74ec20b94ab1f780a |
User & Date: | ams 2024-06-25 11:20:20 |
Context
2024-06-25
| ||
11:30 | uch11: Make sure each backend now is a seperate compilation unit. check-in: 200674745d user: ams tags: ams/sdl | |
11:20 | uch11: Split backend code to seperate files. check-in: 9e48bb8745 user: ams tags: ams/sdl | |
09:54 | ucfg.c: Handle setting modifiers in config file. check-in: 7bf9883f4f user: ams tags: ams/sdl | |
Changes
Changes to Makefile.
︙ | ︙ | |||
50 51 52 53 54 55 56 | # LDFLAGS += # USIM_TV_BACKEND = ucfg.o: ucfg.h ucfg.defs lmch.defs knight.defs $(USIM_TV_BACKEND) iob.o cadet.o knight.o usim.o: lmch.defs knight.defs | > > | | 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | # LDFLAGS += # USIM_TV_BACKEND = ucfg.o: ucfg.h ucfg.defs lmch.defs knight.defs $(USIM_TV_BACKEND) iob.o cadet.o knight.o usim.o: lmch.defs knight.defs # Add uch11-local.o uch11-chaosd.o when they can compile. USIM_UCH11 = uch11.o uch11-udp.o \ chutil.o challoc.o chdopen.o chopen.o MINI.o FILE.o glob.o USIM_OBJS = usim.o ucode.o uexec.o umem.o iob.o mouse.o kbd.o knight.o cadet.o tv.o $(USIM_TV_BACKEND) $(USIM_UCH11) disk.o ini.o ucfg.o trace.o udiss.o usym.o misc.o m32.o idle.o \ $(CHAOS)/libhosts/libhosts.a usim: $(USIM_OBJS) $(CC) $(CFLAGS) -o $@ $(USIM_OBJS) -lpthread $(LDFLAGS) READMCR_OBJS = readmcr.o udiss.o misc.o usym.o |
︙ | ︙ |
Added uch11-chaosd.c.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | /* Connect to a chaos daemon via a Unix socket. */ // #include <sys/poll.h> // #include <sys/socket.h> // #include <sys/stat.h> // #include <sys/time.h> // #include <sys/types.h> // #include <sys/uio.h> // #include <sys/un.h> // // #include <netinet/in.h> // // #include <sys/types.h> // #include <sys/socket.h> // #include <netdb.h> // #include <arpa/inet.h> // // #include <err.h> // #include <pthread.h> // #include <stddef.h> // #include <stdint.h> // #include <stdio.h> // #include <stdlib.h> // #include <string.h> // #include <time.h> // #include <unistd.h> // // #include "uch11.h" // #include "chaosd.h" // #include "hosttab.h" // #include "misc.h" // #include "ucfg.h" // #include "ucode.h" // #include "usim.h" // #include "utrace.h" #define UNIX_SOCKET_PATH "/var/tmp/" #define UNIX_SOCKET_CLIENT_NAME "chaosd_" #define UNIX_SOCKET_SERVER_NAME "chaosd_server" #define UNIX_SOCKET_PERM S_IRWXU static int chaos_send_to_chaosd(char *buffer, int size) { int wcount, dest_addr; /* * Local loopback. */ if (uch11_csr & CHAOS_CSR_LOOP_BACK) { DEBUG(TRACE_CHAOS, "chaos: loopback %d bytes\n", size); memcpy(uch11_rcv_buffer, buffer, size); uch11_rcv_buffer_size = (size + 1) / 2; uch11_rcv_buffer_empty = false; uch11_rx_pkt(); return 0; } wcount = (size + 1) / 2; dest_addr = ((unsigned short *) buffer)[wcount - 3]; DEBUG(TRACE_CHAOS, "chaos: sending packet to chaosd (dest_addr=%o, uch11_myaddr=%o, size %d, wcount %d)\n", dest_addr, uch11_myaddr, size, wcount); /* * Recieve packets addressed to us, but don't receive broadcasts we send */ if (dest_addr == uch11_myaddr) { memcpy(uch11_rcv_buffer, buffer, size); uch11_rcv_buffer_size = (size + 1) / 2; uch11_rcv_buffer_empty = false; uch11_rx_pkt(); } if (chaosd_fd == -1) return 0; { struct iovec iov[2]; unsigned char lenbytes[4]; int ret; lenbytes[0] = size >> 8; lenbytes[1] = size; lenbytes[2] = 1; lenbytes[3] = 0; iov[0].iov_base = lenbytes; iov[0].iov_len = 4; iov[1].iov_base = buffer; iov[1].iov_len = size; ret = writev(chaosd_fd, iov, 2); if (ret < 0) { perror("chaos write"); return -1; } } return 0; } static int chaos_poll_chaosd(void) { ssize_t ret; struct pollfd pfd[1]; int nfds, timeout; unsigned char lenbytes[4]; ssize_t len; int dest_addr; if (reconnect_chaos == true) { uch11_reconnect(); } if (chaosd_fd == -1) { return 0; } timeout = 0; nfds = 1; pfd[0].fd = chaosd_fd; pfd[0].events = POLLIN; pfd[0].revents = 0; ret = poll(pfd, nfds, timeout); if (ret == -1) { ERR(TRACE_CHAOS, "chaos: polling chaosd: nothing there (RDN=%o)\n", uch11_csr & CHAOS_CSR_RECEIVE_DONE); reconnect_chaos = true; return -1; } else if (ret == 0) { ERR(TRACE_CHAOS, "chaos: timeout\n"); return -1; } /* * Is RX buffer full? */ if (!uch11_rcv_buffer_empty && (uch11_csr & CHAOS_CSR_RECEIVE_DONE)) { /* * Toss packets arriving when buffer is already in * use, they will be resent. */ ERR(TRACE_CHAOS, "chaos: polling chaosd: unread data, drop (RDN=%o, lost %d)\n", uch11_csr & CHAOS_CSR_RECEIVE_DONE, uch11_lost_count); uch11_lost_count++; ret = read(chaosd_fd, lenbytes, 4); if (ret != 4) perror("read"); len = (lenbytes[0] << 8) | lenbytes[1]; DEBUG(TRACE_CHAOS, "chaos: tossing packet of %d bytes\n", len); if (len > (ssize_t) sizeof(uch11_rcv_buffer_toss)) { ERR(TRACE_CHAOS, "chaos: packet won't fit (len=%d)", len); uch11_force_reconect(); return -1; } /* * Toss it... */ ret = read(chaosd_fd, (char *) uch11_rcv_buffer_toss, len); if (ret != len) perror("read"); return -1; } /* * Read header from chaosd. */ ret = read(chaosd_fd, lenbytes, 4); if (ret <= 0) { perror("chaos: header read error"); uch11_force_reconect(); return -1; } len = (lenbytes[0] << 8) | lenbytes[1]; if (len > (ssize_t) sizeof(uch11_rcv_buffer)) { ERR(TRACE_CHAOS, "chaos: packet too big: pkt size %d, buffer size %lu\n", len, sizeof(uch11_rcv_buffer)); /* * When we get out of synch break socket conn. */ uch11_force_reconect(); return -1; } ret = read(chaosd_fd, (char *) uch11_rcv_buffer, len); if (ret == -1) { perror("chaos: read"); uch11_force_reconect(); return -1; } else if (ret == 0) { ERR(TRACE_CHAOS, "chaos: read zero bytes\n"); return -1; } DEBUG(TRACE_CHAOS, "chaos: polling; got chaosd packet %d\n", ret); uch11_rcv_buffer_size = (ret + 1) / 2; uch11_rcv_buffer_empty = false; dest_addr = uch11_rcv_buffer[uch11_rcv_buffer_size - 3]; /* * If not to us, ignore. */ if (dest_addr != uch11_myaddr) { DEBUG(TRACE_CHAOS, "chaos: ignoring packet not to us (%o): %o\n", uch11_myaddr, dest_addr); uch11_rcv_buffer_size = 0; uch11_rcv_buffer_empty = true; /* * Should uch11_rx_pkt be called here? */ return 0; } DEBUG(TRACE_CHAOS, "chaos: recieving packet: from %o, my %o\n", dest_addr, uch11_myaddr); uch11_rx_pkt(); return 0; } |
Added uch11-local.c.
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node = malloc(sizeof(struct packet_queue)); node->packet = packet; pthread_mutex_lock(&recvqueue); TAILQ_INSERT_TAIL(&queuehead, node, next); pthread_mutex_unlock(&recvqueue); } int chaos_connection_queue(struct connection *conn, struct packet *packet) { struct packet_queue *node; unsigned short nextpacket; INFO(TRACE_CHAOS, "chaos: sending packet (0%o) to 0%o from 0%o (length: %d)\n", packet->pk_op, CH_ADDR_SHORT(packet->pk_daddr), CH_ADDR_SHORT(packet->pk_saddr), PH_LEN(packet->pk_phead)); if (trace_level == LOG_DEBUG && (trace_facilities & TRACE_CHAOS)) { dumpmem(packet->pk_cdata, PH_LEN(packet->pk_phead)); } /* * Any packet for remote gets queued. */ if (CH_ADDR_SHORT(packet->pk_daddr) == CH_ADDR_SHORT(conn->cn_faddr)) { for (;;) { if (chtfull(conn) && packet->pk_op != STSOP) { struct timespec ts; DEBUG(TRACE_CHAOS, "chaos: waiting for remote ack packet=%d (cn_tlast = %d cn_tacked = %d twsize = %d)\n", packet->pk_pkn, conn->cn_tlast, conn->cn_tacked, conn->cn_twsize); pthread_mutex_lock(&conn->twsem); clock_gettime(CLOCK_REALTIME, &ts); ts.tv_sec += 5; if (pthread_cond_timedwait(&conn->twcond, &conn->twsem, &ts)) { if (conn->lastpacket) { struct packet *retransmit; DEBUG(TRACE_CHAOS, "chaos: re-transmit last packet\n"); retransmit = conn->lastpacket; conn->lastpacket = 0; chaos_queue(retransmit); } } pthread_mutex_unlock(&conn->twsem); } else break; } if (packet->pk_op != STSOP && CH_INDEX_SHORT(packet->pk_didx) == CH_INDEX_SHORT(conn->cn_fidx) && cmp_gt(packet->pk_pkn, conn->cn_tlast)) conn->cn_tlast = packet->pk_pkn; conn->lastpacket = packet; chaos_queue(packet); return 0; } node = malloc(sizeof(struct packet_queue)); node->packet = packet; nextpacket = conn->cn_rlast + 1; if (cmp_gt(packet->pk_pkn, nextpacket)) { DEBUG(TRACE_CHAOS, "chaos: queuing out-of-order packet: nextpacket=%d packet=%d\n", nextpacket, packet->pk_pkn); pthread_mutex_lock(&conn->queuelock); TAILQ_INSERT_TAIL(&conn->orderhead, node, next); pthread_mutex_unlock(&conn->queuelock); return 0; } { pthread_mutex_lock(&conn->queuelock); TAILQ_INSERT_TAIL(&conn->queuehead, node, next); pthread_mutex_unlock(&conn->queuelock); } pthread_mutex_lock(&conn->queuesem); pthread_cond_signal(&conn->queuecond); pthread_mutex_unlock(&conn->queuesem); return 0; } struct packet * chaos_connection_dequeue(struct connection *conn) { struct packet *packet; struct packet_queue *node; #if 0 unsigned short nextpacket; #endif packet = NOPKT; node = 0; #if 0 nextpacket = conn->cn_rlast + 1; #endif if (conn->cn_state == CSCLOSED) return NOPKT; for (;;) { pthread_mutex_lock(&conn->queuelock); if (TAILQ_EMPTY(&conn->orderhead) == false) { #if 0 struct packet_queue *prev; for (node = conn->orderhead; node; prev = node, node = node->next) if (node->packet->pk_pkn == nextpacket) { if (prev == 0) conn->orderhead = node->next; else prev->next = node->next; if (conn->ordertail == node) conn->ordertail = prev; packet = node->packet; break; } #endif #if 0 TAILQ_FOREACH(node, &conn->orderhead, next) { if (node->packet->pk_pkn == nextpacket) { DEBUG(TRACE_CHAOS, "chaos: dequeued out-of-order packet %d\n", nextpacket); /* * ---!! magic */ break; } } #else DEBUG(TRACE_CHAOS, "chaos: ordered queue empty\n"); #endif } if (node == 0 && TAILQ_EMPTY(&conn->queuehead) == false) { node = TAILQ_FIRST(&conn->queuehead); packet = node->packet; TAILQ_REMOVE(&conn->queuehead, node, next); } pthread_mutex_unlock(&conn->queuelock); if (node) { free(node); node = 0; } if (packet) { if (cmp_gt(packet->pk_pkn, conn->cn_rlast)) conn->cn_rlast = packet->pk_pkn; conn->cn_tacked = packet->pk_ackn; if (3 * (short) (conn->cn_rlast - conn->cn_racked) > conn->cn_rwsize) { struct packet *status; status = chaos_allocate_packet(conn, STSOP, 2 * sizeof(unsigned short)); conn->cn_racked = conn->cn_rlast; *(unsigned short *) &status->pk_cdata[0] = conn->cn_rlast; *(unsigned short *) &status->pk_cdata[2] = conn->cn_rwsize; chaos_queue(status); } return packet; } pthread_mutex_lock(&conn->queuesem); pthread_cond_wait(&conn->queuecond, &conn->queuesem); pthread_mutex_unlock(&conn->queuesem); if (conn->cn_state == CSCLOSED) return NOPKT; } } static int chaos_queue_time_pkt(unsigned short saddr, unsigned short sidx) { time_t t; struct timeval time; struct packet *answer; INFO(TRACE_CHAOS, "chaos: RFC (TIME): answering...\n"); gettimeofday(&time, NULL); t = time.tv_sec; t += 60UL * 60 * 24 * ((1970 - 1900) * 365L + 1970 / 4 - 1900 / 4); answer = pkalloc(sizeof(long), 0); answer->pk_op = ANSOP; SET_PH_LEN(answer->pk_phead, sizeof(long)); SET_CH_ADDR(answer->pk_daddr, saddr); SET_CH_INDEX(answer->pk_didx, sidx); SET_CH_ADDR(answer->pk_saddr, chaos_addr(ucfg.chaos_servername, 0)); SET_CH_INDEX(answer->pk_sidx, 0); answer->pk_pkn = 0; answer->pk_ackn = 0; *(long *) &answer->pk_cdata[0] = t; chaos_queue(answer); return 0; } static int chaos_queue_uptime_pkt(unsigned short saddr, unsigned short sidx) { struct packet *answer; INFO(TRACE_CHAOS, "chaos: RFC (UPTIME): answering...\n"); answer = pkalloc(sizeof(long), 0); answer->pk_op = ANSOP; SET_PH_LEN(answer->pk_phead, sizeof(long)); SET_CH_ADDR(answer->pk_daddr, saddr); SET_CH_INDEX(answer->pk_didx, sidx); SET_CH_ADDR(answer->pk_saddr, chaos_addr(ucfg.chaos_servername, 0)); SET_CH_INDEX(answer->pk_sidx, 0); answer->pk_pkn = 0; answer->pk_ackn = 0; *(long *) &answer->pk_cdata[0] = 0; chaos_queue(answer); return 0; } static int chaos_queue_status_pkt(unsigned short saddr, unsigned short sidx) { struct packet *answer; struct status *status; INFO(TRACE_CHAOS, "chaos: RFC (STATUS): answering...\n"); answer = pkalloc(CHSTATNAME + 2 * 2, 0); /* Only room for name and subnet+nwords */ answer->pk_op = ANSOP; SET_PH_LEN(answer->pk_phead, CHSTATNAME + 2 * 2); SET_CH_ADDR(answer->pk_daddr, saddr); SET_CH_INDEX(answer->pk_didx, sidx); SET_CH_ADDR(answer->pk_saddr, chaos_addr(ucfg.chaos_servername, 0)); SET_CH_INDEX(answer->pk_sidx, 0); answer->pk_pkn = 0; answer->pk_ackn = 0; status = (struct status *) &answer->pk_cdata[0]; memset(status, 0, sizeof(struct status)); strncpy(status->sb_name, ucfg.chaos_servername, CHSTATNAME); status->sb_name[CHSTATNAME - 1] = '\0'; /* Only put in the subnet (with the 400 marker) */ status->sb_data->sb_ident = (chaos_addr(ucfg.chaos_servername, 0) >> 8) | 0400; /* and say no data is following */ status->sb_data->sb_nshorts = 0 * sizeof(int) / sizeof(short); chaos_queue(answer); return 0; } static int chaos_queue_file_pkt(struct packet *packet) { void processdata(struct connection *conn); struct packet *answer; struct connection *conn; packet->pk_cdata[PH_LEN(packet->pk_phead)] = '\0'; INFO(TRACE_CHAOS, "chaos: RFC (%s): answering...\n", &packet->pk_cdata); conn = allconn(); conn->cn_faddr = packet->pk_saddr; conn->cn_fidx = packet->pk_sidx; answer = chaos_allocate_packet(conn, OPNOP, 2 * sizeof(unsigned short)); answer->pk_ackn = packet->pk_pkn; conn->cn_racked = packet->pk_pkn; *(unsigned short *) &answer->pk_cdata[0] = packet->pk_pkn; /* Last packed received. */ *(unsigned short *) &answer->pk_cdata[2] = conn->cn_rwsize; chaos_connection_queue(conn, answer); conn->cn_state = CSLISTEN; processdata(conn); return 0; } static int chaos_queue_mini_pkt(struct packet *packet) { void processmini(struct connection *conn); struct packet *answer; struct connection *conn; packet->pk_cdata[PH_LEN(packet->pk_phead)] = '\0'; INFO(TRACE_CHAOS, "chaos: RFC (%s): answering...\n", &packet->pk_cdata); conn = allconn(); conn->cn_faddr = packet->pk_saddr; conn->cn_fidx = packet->pk_sidx; answer = chaos_allocate_packet(conn, OPNOP, 2 * sizeof(unsigned short)); answer->pk_ackn = packet->pk_pkn; conn->cn_racked = packet->pk_pkn; *(unsigned short *) &answer->pk_cdata[0] = packet->pk_pkn; /* Last packed received. */ *(unsigned short *) &answer->pk_cdata[2] = conn->cn_rwsize; chaos_connection_queue(conn, answer); conn->cn_state = CSLISTEN; conn->cn_rlast = 1; processmini(conn); return 0; } static int chaos_send_to_local(char *buffer, int size) { /* ---!!! rcvpkt ? */ struct packet *packet; struct connection *conn; packet = (struct packet *) buffer; /* * Local loopback. */ if (uch11_csr & CHAOS_CSR_LOOP_BACK) { DEBUG(TRACE_CHAOS, "chaos: loopback %d bytes\n", size); memcpy(uch11_rcv_buffer, buffer, size); uch11_rcv_buffer_size = (size + 1) / 2; uch11_rcv_buffer_empty = false; uch11_rx_pkt(); return 0; } DEBUG(TRACE_CHAOS, "chaos: transmitting packet (dest_addr = %o, uch11_myaddr=%o, size %d, wcount %d, op: %o)\n", CH_ADDR_SHORT(packet->pk_daddr), uch11_myaddr, size, (size + 1) / 2, packet->pk_op); /* * Receive packets addressed to ourselves. */ if (CH_ADDR_SHORT(packet->pk_daddr) == uch11_myaddr) { memcpy(uch11_rcv_buffer, buffer, size); uch11_rcv_buffer_size = (size + 1) / 2; uch11_rcv_buffer_empty = false; uch11_rx_pkt(); } /* * Ignore packets anything that isn't addressed to us. */ if (CH_ADDR_SHORT(packet->pk_daddr) != chaos_addr(ucfg.chaos_servername, 0)) { DEBUG(TRACE_CHAOS, "chaos: ignoring packet not to us (%o): %o\n", chaos_addr(ucfg.chaos_servername, 0), CH_ADDR_SHORT(packet->pk_daddr)); return 0; } conn = chaos_find_connection(CH_INDEX_SHORT(packet->pk_didx)); /* * ---!!! Large parts of this is in rcvrfc. */ if (packet->pk_op == RFCOP) { DEBUG(TRACE_CHAOS, "chaos: got RFC packet\n"); if (conn && conn->cn_state == CSLISTEN) { DEBUG(TRACE_CHAOS, "chaos: duplicate RFC\n"); return 0; } if (conn) { struct packet *pkt; pkt = pkalloc((size_t) size, 0); memcpy(pkt, packet, size); chaos_connection_queue(conn, pkt); return 0; } if (memcmp(&packet->pk_cdata, "STATUS", 6) == 0) return chaos_queue_status_pkt(CH_ADDR_SHORT(packet->pk_saddr), CH_INDEX_SHORT(packet->pk_sidx)); else if (memcmp(&packet->pk_cdata, "TIME", 4) == 0) return chaos_queue_time_pkt(CH_ADDR_SHORT(packet->pk_saddr), CH_INDEX_SHORT(packet->pk_sidx)); else if (memcmp(&packet->pk_cdata, "UPTIME", 6) == 0) return chaos_queue_uptime_pkt(CH_ADDR_SHORT(packet->pk_saddr), CH_INDEX_SHORT(packet->pk_sidx)); else if (memcmp(&packet->pk_cdata, "FILE", 4) == 0) return chaos_queue_file_pkt(packet); else if (memcmp(&packet->pk_cdata, "MINI", 4) == 0) return chaos_queue_mini_pkt(packet); else { char buffer[512]; strncpy(buffer, (char *) packet->pk_cdata, PH_LEN(packet->pk_phead)); buffer[PH_LEN(packet->pk_phead)] = '\0'; WARNING(TRACE_CHAOS, "chaos: RFC (%s): protocol not implemented\n", buffer); return 0; } } if (packet->pk_op == SNSOP && conn) { struct packet *sts; sts = pkalloc(2 * sizeof(unsigned short) + 3 * sizeof(unsigned short), 1); sts->pk_op = STSOP; SET_PH_LEN(sts->pk_phead, 2 * sizeof(unsigned short)); sts->pk_daddr = packet->pk_saddr; sts->pk_didx = packet->pk_sidx; conn->cn_faddr = packet->pk_saddr; conn->cn_fidx = packet->pk_sidx; sts->pk_saddr = conn->cn_laddr; sts->pk_sidx = conn->cn_lidx; sts->pk_pkn = packet->pk_pkn; if (cmp_gt(packet->pk_ackn, conn->cn_tacked)) conn->cn_tacked = packet->pk_ackn; sts->pk_ackn = conn->cn_racked; *(unsigned short *) &sts->pk_cdata[0] = conn->cn_racked; *(unsigned short *) &sts->pk_cdata[2] = conn->cn_rwsize; chaos_connection_queue(conn, sts); return 0; } if (packet->pk_op == STSOP) { if (conn) { if (cmp_gt(packet->pk_ackn, conn->cn_tacked)) conn->cn_tacked = packet->pk_ackn; if (conn->lastpacket && conn->cn_tacked == conn->lastpacket->pk_pkn) { free(conn->lastpacket); conn->lastpacket = 0; } conn->cn_state = CSOPEN; conn->cn_twsize = *(unsigned short *) &packet->pk_cdata[2]; DEBUG(TRACE_CHAOS, "chaos: STSOP: twsize = %d\n", conn->cn_twsize); pthread_mutex_lock(&conn->twsem); pthread_cond_signal(&conn->twcond); pthread_mutex_unlock(&conn->twsem); } return 0; } if (conn && packet->pk_op == CLSOP) { /* clsconn ? */ DEBUG(TRACE_CHAOS, "chaos: CLSOP: got close \n"); conn->cn_state = CSCLOSED; pthread_mutex_lock(&conn->queuesem); pthread_cond_signal(&conn->queuecond); pthread_mutex_unlock(&conn->queuesem); usleep(100000); /* wait for queue to wake up */ rlsconn(conn); return 0; } if (conn && (cmp_gt(conn->cn_rlast, packet->pk_pkn) || (conn->cn_rlast == packet->pk_pkn))) { struct packet *status; DEBUG(TRACE_CHAOS, "chaos: duplicate data packet\n"); status = chaos_allocate_packet(conn, STSOP, 2 * sizeof(unsigned short)); status->pk_pkn = packet->pk_pkn; conn->cn_racked = conn->cn_rlast; *(unsigned short *) &status->pk_cdata[0] = conn->cn_rlast; *(unsigned short *) &status->pk_cdata[2] = conn->cn_rwsize; chaos_connection_queue(conn, status); return 0; } if (conn) { struct packet *pkt; pkt = pkalloc((size_t) size, 0); memcpy(pkt, packet, size); chaos_connection_queue(conn, pkt); } return 0; } static int chaos_poll_local(void) { struct packet *packet; struct packet_queue *node; int size; /* * Is RX buffer full? */ if (!uch11_rcv_buffer_empty && (uch11_csr & CHAOS_CSR_RECEIVE_DONE)) { DEBUG(TRACE_CHAOS, "chaos: polling, but unread data exists\n"); return 0; } if (!uch11_rcv_buffer_empty) { DEBUG(TRACE_CHAOS, "chaos: polling, but buffer not empty\n"); return 0; } if (TAILQ_EMPTY(&queuehead) == true) { return 0; } if (!(uch11_csr & CHAOS_CSR_RECEIVE_ENABLE)) { DEBUG(TRACE_CHAOS, "chaos: polling but rx not enabled\n"); return 0; } pthread_mutex_lock(&recvqueue); node = TAILQ_FIRST(&queuehead); packet = node->packet; TAILQ_REMOVE(&queuehead, node, next); free(node); pthread_mutex_unlock(&recvqueue); size = ((PH_LEN(packet->pk_phead) & 0x0fff) + CHHEADSIZE + 1) / 2; /* * Ignore any packets not to us. */ if (CH_ADDR_SHORT(packet->pk_daddr) != uch11_myaddr) return 0; memcpy(uch11_rcv_buffer, packet, (size_t) size * sizeof(unsigned short)); /* * Hardware header. */ uch11_rcv_buffer[size] = CH_ADDR_SHORT(packet->pk_daddr); uch11_rcv_buffer[size + 1] = CH_ADDR_SHORT(packet->pk_saddr); uch11_rcv_buffer[size + 2] = 0; size += 3; uch11_rcv_buffer_size = size; uch11_rcv_buffer_empty = false; DEBUG(TRACE_CHAOS, "chaos: polling: got chaos packet of %d bytes\n", uch11_rcv_buffer_size * 2); #if 0 dumpbuffer(uch11_rcv_buffer, size * 2); #endif uch11_rx_pkt(); return 0; } |
Added uch11-udp.c.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 | /* Chaos over UDP */ // #include <sys/poll.h> // #include <sys/socket.h> // #include <sys/stat.h> // #include <sys/time.h> // #include <sys/types.h> // #include <sys/uio.h> // #include <sys/un.h> // // #include <netinet/in.h> // // #include <sys/types.h> // #include <sys/socket.h> // #include <netdb.h> // #include <arpa/inet.h> // // #include <err.h> // #include <pthread.h> // #include <stddef.h> // #include <stdint.h> // #include <stdio.h> // #include <stdlib.h> // #include <string.h> // #include <time.h> // #include <unistd.h> // // #include "uch11.h" // #include "chaosd.h" // #include "hosttab.h" // #include "misc.h" // #include "ucfg.h" // #include "ucode.h" // #include "usim.h" // #include "utrace.h" int hybrid_udp_and_local = 0; static int chudpopen(void) { int sock, lport, res, udp_dport, braddr; struct sockaddr_in sin; struct addrinfo *he, hi; struct in_addr udp_dest; if (hybrid_udp_and_local) { if (uch11_serveraddr == 0) { ERR(TRACE_CHAOS, "You configured udp_local_hybrid but there is no server address! Disabling hybrid.\n"); hybrid_udp_and_local = 0; } else { /* Do the local init too */ TAILQ_INIT(&queuehead); pthread_mutex_init(&recvqueue, NULL); } } /* Parse the local port given */ if ((ucfg.chaos_bridgeport_local == NULL) || (ucfg.chaos_bridgeport_local[0] == '\0') || ((lport = atoi(ucfg.chaos_bridgeport_local)) <= 0) || (lport >= (1 << 16))) { /* Or default to 42042? */ err(1, "bad bridgeport_local"); } /* Parse the bridge port given */ if ((ucfg.chaos_bridgeport == NULL) || (ucfg.chaos_bridgeport[0] == '\0') || ((udp_dport = atoi(ucfg.chaos_bridgeport)) <= 0) || (udp_dport >= (1 << 16))) { /* Or default to 42042? */ err(1, "bad bridgeport"); } /* Parse the bridge address given */ if ((ucfg.chaos_bridgeip != NULL) && (ucfg.chaos_bridgeip[0] != '\0')) { /* @@@@ allow IPv6 */ /* Check if it is an explicit IPv4 address */ if (inet_aton(ucfg.chaos_bridgeip, &udp_dest) == 0) { /* Else try to parse a host name */ memset(&hi, 0, sizeof(hi)); hi.ai_family = AF_INET; hi.ai_flags = AI_ADDRCONFIG; if ((res = getaddrinfo(ucfg.chaos_bridgeip, NULL, &hi, &he)) == 0) { struct sockaddr_in *s = (struct sockaddr_in *) he->ai_addr; memcpy(&udp_dest.s_addr, (u_char *) & s->sin_addr, 4); } else { err(1, "bad bridgeip"); } } } else { err(1, "no bridge?"); } /* Parse bridge Chaos address */ if ((ucfg.chaos_bridgechaos == NULL) || (ucfg.chaos_bridgechaos[0] == '\0') | (sscanf(ucfg.chaos_bridgechaos, "%o", &braddr) != 1) || /* Check it's a valid address */ (braddr == 0) || (braddr >= (1 << 16)) || ((braddr & 0xff) == 0) || (((braddr >> 8) & 0xff) == 0)) { err(1, "bad bridgechaos"); } else { udp_bridge_chaddr = (braddr & 0xffff); } NOTICE(TRACE_USIM, "chaos: chudp init, bridge is %#o at %s:%d, local port %d, hybrid %s\n", udp_bridge_chaddr, inet_ntoa(udp_dest), udp_dport, lport, hybrid_udp_and_local ? "true" : "false"); /* Now create a socket, and bind it to our local port */ if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { perror("socket failed"); exit(1); } sin.sin_family = AF_INET; sin.sin_port = htons(lport); sin.sin_addr.s_addr = INADDR_ANY; if (bind(sock, (struct sockaddr *) &sin, sizeof(sin)) < 0) { perror("udp bind failed"); exit(1); } /* and then connect it to the remote address - since we're only using one and the same */ sin.sin_port = htons(udp_dport); memcpy(&sin.sin_addr.s_addr, &udp_dest.s_addr, 4); if (connect(sock, (struct sockaddr *) &sin, sizeof(sin)) < 0) { perror("udp connect failed"); exit(1); } return sock; } /* from chudp.h and cbridge-chaos.h */ // Max pkt size (12 bits) plus header // The limit of 488 bytes is from MIT AIM 628, although more would fit any modern pkt (and 12 bits would give 4096 as max). // This is due to original Chaos hardware pkts limited to 4032 bits, of which 16 bytes are header. #define CH_PK_MAX_DATALEN 488 /* Protocol version */ #define CHUDP_VERSION 1 /* Protocol function codes */ #define CHUDP_PKT 1 /* Chaosnet packet */ struct chudp_header { char chudp_version; char chudp_function; char chudp_arg1; char chudp_arg2; }; struct chaos_hw_trailer { unsigned short ch_hw_destaddr:16; unsigned short ch_hw_srcaddr:16; unsigned short ch_hw_checksum:16; }; /* Max: CHUDP header, Chaos header, Chaos data, trailer */ #define CHUDP_MAXLEN (sizeof(struct chudp_header)+sizeof(struct pkt_header)+CH_PK_MAX_DATALEN+sizeof(struct chaos_hw_trailer)) static u_char trans_chudpbuf[CHUDP_MAXLEN]; /* So sorry about this. */ void ntohs_buf(u_short *ibuf, u_short *obuf, int len) { int i; for (i = 0; i < len; i += 2) *obuf++ = ntohs(*ibuf++); } static int chaos_send_to_udp(char *buffer, int size) { int wcount, dest_addr; /* * Local loopback. */ if (uch11_csr & CHAOS_CSR_LOOP_BACK) { DEBUG(TRACE_CHAOS, "chaos: loopback %d bytes\n", size); memcpy(uch11_rcv_buffer, buffer, size); uch11_rcv_buffer_size = (size + 1) / 2; uch11_rcv_buffer_empty = false; uch11_rx_pkt(); return 0; } if (hybrid_udp_and_local) { /* Check if it is for our "local server" */ struct packet *packet; packet = (struct packet *) buffer; if (CH_ADDR_SHORT(packet->pk_daddr) == chaos_addr(ucfg.chaos_servername, 0)) { return chaos_send_to_local(buffer, size); } } wcount = (size + 1) / 2; dest_addr = ((unsigned short *) buffer)[wcount - 3]; DEBUG(TRACE_CHAOS, "chaos: sending packet to udp (dest_addr=%o, uch11_myaddr=%o, size %d, wcount %d)\n", dest_addr, uch11_myaddr, size, wcount); if (size > (int) CHUDP_MAXLEN) { ERR(TRACE_CHAOS, "chaos: packet too long: %d", size); return -1; } /* * Receive packets addressed to us, or broadcasts. */ if ((dest_addr == uch11_myaddr) || (dest_addr == 0)) { memcpy(uch11_rcv_buffer, buffer, size); uch11_rcv_buffer_size = (size + 1) / 2; uch11_rcv_buffer_empty = false; uch11_rx_pkt(); if (dest_addr != 0) /* Broadcasts should be sent also to other */ return 0; } if (chaosd_fd == -1) { ERR(TRACE_CHAOS, "chaos: transmit but chaosd_fd not open!\n"); return 0; } { struct chudp_header *hp = (struct chudp_header *) &trans_chudpbuf; u_char *op = trans_chudpbuf + sizeof(struct chudp_header); int nb; memset(trans_chudpbuf, 0, sizeof(trans_chudpbuf)); /* Set up CHUDP header */ hp->chudp_version = CHUDP_VERSION; hp->chudp_function = CHUDP_PKT; memcpy(op, buffer, size); /* Update the hw trailer dest (and checksum) since what is there is probably the ultimate dest, * but it should be just the next hop */ struct pkt_header *ph = (struct pkt_header *) ((char *) op); u_short pklen = LENFC_LEN(ph->ph_lenfc); u_short offs = sizeof(struct pkt_header) + pklen; if (offs % 2) offs++; struct chaos_hw_trailer *tp = (struct chaos_hw_trailer *) (op + offs); u_short hwdest = tp->ch_hw_destaddr; u_short cksum = tp->ch_hw_checksum; if (hwdest != udp_bridge_chaddr) { INFO(TRACE_CHAOS, "chaos: hw trailer dest is %#o should be %#o\n", hwdest, udp_bridge_chaddr); tp->ch_hw_destaddr = udp_bridge_chaddr; } tp->ch_hw_checksum = htons(uch11_checksum(op, size - 2)); /* Now swap it */ ntohs_buf((u_short *) op, (u_short *) op, size); INFO(TRACE_CHAOS, "chaos: sending %d bytes (pkt size %d)\n", size + sizeof(struct chudp_header), size); if ((nb = send(chaosd_fd, (char *) hp, size + sizeof(struct chudp_header), 0)) < 0) { perror("chaos: send to udp"); ERR(TRACE_CHAOS, "chaos: send to udp failed"); return -1; } else if (nb != size + sizeof(struct chudp_header)) { ERR(TRACE_CHAOS, "chaos: could not send the full pkt: %d sent, expected %d", nb, size + sizeof(struct chudp_header)); return -1; } } return 0; } static int chaos_poll_udp(void) { /* basically copy chaos_poll_chaosd but skip CHUDP header and swap */ ssize_t ret; struct pollfd pfd[1]; int nfds, timeout; unsigned char lenbytes[4]; ssize_t len; int dest_addr; if (hybrid_udp_and_local) { /* Prioritize local traffic */ chaos_poll_local(); } if (chaosd_fd == -1) { return 0; } timeout = 0; nfds = 1; pfd[0].fd = chaosd_fd; pfd[0].events = POLLIN; pfd[0].revents = 0; ret = poll(pfd, nfds, timeout); if (ret == -1) { ERR(TRACE_CHAOS, "chaos: polling udp: nothing there (RDN=%o)\n", uch11_csr & CHAOS_CSR_RECEIVE_DONE); return -1; } else if (ret == 0) { // this happens all the time so don't // ERR(TRACE_CHAOS, "chaos: udp poll timeout\n"); return -1; } /* * Is RX buffer full? */ if (!uch11_rcv_buffer_empty && (uch11_csr & CHAOS_CSR_RECEIVE_DONE)) { /* * Toss packets arriving when buffer is already in * use, they will be resent. */ ERR(TRACE_CHAOS, "chaos: polling udp: unread data, drop (RDN=%o, lost %d)\n", uch11_csr & CHAOS_CSR_RECEIVE_DONE, uch11_lost_count); uch11_lost_count++; /* Toss it by reading it */ ret = recv(chaosd_fd, (char *) uch11_rcv_buffer_toss, sizeof(uch11_rcv_buffer_toss), 0); DEBUG(TRACE_CHAOS, "chaos: tossing udp packet of %d bytes\n", ret); return -1; } ret = recv(chaosd_fd, (char *) uch11_rcv_buffer, sizeof(uch11_rcv_buffer), 0); if (ret == -1) { perror("chaos: udp read"); return -1; } else if (ret == 0) { ERR(TRACE_CHAOS, "chaos: udp read zero bytes\n"); return -1; } else if (ret > (int) CHUDP_MAXLEN) { ERR(TRACE_CHAOS, "chaos: udp read too many bytes: %d\n", ret); return -1; } INFO(TRACE_CHAOS, "chaos: polling; got udp packet len %d\n", ret); struct chudp_header *hp = (struct chudp_header *) uch11_rcv_buffer; if (hp->chudp_version != CHUDP_VERSION) { ERR(TRACE_CHAOS, "chaos: chudp version is wrong: %d\n", hp->chudp_version); return -1; } if (hp->chudp_function != CHUDP_PKT) { ERR(TRACE_CHAOS, "chaos: chudp function is wrong: %d\n", hp->chudp_function); return -1; } /* zap chudp header */ memmove((char *) uch11_rcv_buffer, ((char *) uch11_rcv_buffer) + sizeof(struct chudp_header), ret - sizeof(struct chudp_header)); ret -= sizeof(struct chudp_header); /* and swap it */ ntohs_buf(uch11_rcv_buffer, uch11_rcv_buffer, ret); uch11_rcv_buffer_size = (ret + 1) / 2; uch11_rcv_buffer_empty = false; dest_addr = uch11_rcv_buffer[uch11_rcv_buffer_size - 3]; /* * If not to us (or broadcast), ignore. */ if ((dest_addr != uch11_myaddr) && (dest_addr != 0)) { INFO(TRACE_CHAOS, "chaos: ignoring packet not to us (%o): %o\n", uch11_myaddr, dest_addr); uch11_rcv_buffer_size = 0; uch11_rcv_buffer_empty = true; /* * Should uch11_rx_pkt be called here? */ return 0; } INFO(TRACE_CHAOS, "chaos: udp receiving packet: from %o, my %o\n", dest_addr, uch11_myaddr); uch11_rx_pkt(); return 0; } |
Changes to uch11.c.
︙ | ︙ | |||
73 74 75 76 77 78 79 80 81 82 83 84 | static int reconnect_delay; static bool reconnect_chaos; static int (*uch11_send)(char *, int); static void uch11_force_reconect(void); static u_short udp_bridge_chaddr; static int chudpopen(void); static int chaos_send_to_udp(char *buffer, int size); static int chaos_poll_udp(void); | > > > > | > > > > > | > > > > > > > | 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | static int reconnect_delay; static bool reconnect_chaos; static int (*uch11_send)(char *, int); static void uch11_force_reconect(void); extern void uch11_reconnect(void); extern void settreeroot(const char *, const char *prefix); // udp static u_short udp_bridge_chaddr; static int chudpopen(void); static int chaos_send_to_udp(char *buffer, int size); static int chaos_poll_udp(void); // deamon static int chaosd_fd; static pthread_mutex_t recvqueue; static pthread_mutex_t recvqueue; struct queue_head queuehead = TAILQ_HEAD_INITIALIZER(queuehead); static int chaos_send_to_chaosd(char *buffer, int size); static int chaos_poll_chaosd(void); // local static int chaos_send_to_local(char *buffer, int size); static int chaos_poll_local(void); /* * RFC1071: Compute Internet Checksum for COUNT bytes beginning at * location ADDR. */ static unsigned short uch11_checksum(const unsigned char *addr, int count) |
︙ | ︙ | |||
271 272 273 274 275 276 277 | if ((old_csr & CHAOS_CSR_TRANSMIT_ENABLE) == 0) DEBUG(TRACE_CHAOS, "chaos: CSR transmit enable\n"); uch11_csr |= CHAOS_CSR_TRANSMIT_DONE; } else if (old_csr & CHAOS_CSR_TRANSMIT_ENABLE) DEBUG(TRACE_CHAOS, "chaos: CSR transmit DISable\n"); DEBUG(TRACE_CHAOS, "chaos: set csr bits 0%o, old 0%o, new 0%o\n", v, old_csr, uch11_csr); } | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | 287 288 289 290 291 292 293 294 295 296 297 298 299 300 | if ((old_csr & CHAOS_CSR_TRANSMIT_ENABLE) == 0) DEBUG(TRACE_CHAOS, "chaos: CSR transmit enable\n"); uch11_csr |= CHAOS_CSR_TRANSMIT_DONE; } else if (old_csr & CHAOS_CSR_TRANSMIT_ENABLE) DEBUG(TRACE_CHAOS, "chaos: CSR transmit DISable\n"); DEBUG(TRACE_CHAOS, "chaos: set csr bits 0%o, old 0%o, new 0%o\n", v, old_csr, uch11_csr); } void uch11_poll(void) { if (uch11_backend == UCH11_BACKEND_LOCAL) chaos_poll_local(); else if (uch11_backend == UCH11_BACKEND_DAEMON) |
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1024 1025 1026 1027 1028 1029 1030 | } if (root_directory == NULL) err(1, "could not resolve %s", whichconf); NOTICE(TRACE_USIM, "chaos: mapping %s to %s\n", whichdir, root_directory); return 0; } | < | < | < < < < < < < | < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | 392 393 394 395 396 397 398 399 400 401 | } if (root_directory == NULL) err(1, "could not resolve %s", whichconf); NOTICE(TRACE_USIM, "chaos: mapping %s to %s\n", whichdir, root_directory); return 0; } #include "uch11-chaosd.c" #include "uch11-local.c" #include "uch11-udp.c" |