| 1 | /************************************************* |
| 2 | * Exim - an Internet mail transport agent * |
| 3 | *************************************************/ |
| 4 | |
| 5 | /* Copyright (c) University of Cambridge 1995 - 2018 */ |
| 6 | /* See the file NOTICE for conditions of use and distribution. */ |
| 7 | |
| 8 | |
| 9 | #include "../exim.h" |
| 10 | #include "rf_functions.h" |
| 11 | #include "accept.h" |
| 12 | |
| 13 | |
| 14 | /* Options specific to the accept router. Because some compilers do not like |
| 15 | empty declarations ("undefined" in the Standard) we put in a dummy value. */ |
| 16 | |
| 17 | optionlist accept_router_options[] = { |
| 18 | { "", opt_hidden, NULL } |
| 19 | }; |
| 20 | |
| 21 | /* Size of the options list. An extern variable has to be used so that its |
| 22 | address can appear in the tables drtables.c. */ |
| 23 | |
| 24 | int accept_router_options_count = |
| 25 | sizeof(accept_router_options)/sizeof(optionlist); |
| 26 | |
| 27 | /* Default private options block for the accept router. Again, a dummy |
| 28 | value is used. */ |
| 29 | |
| 30 | accept_router_options_block accept_router_option_defaults = { |
| 31 | NULL /* dummy */ |
| 32 | }; |
| 33 | |
| 34 | |
| 35 | #ifdef MACRO_PREDEF |
| 36 | |
| 37 | /* Dummy entries */ |
| 38 | void accept_router_init(router_instance *rblock) {} |
| 39 | int accept_router_entry(router_instance *rblock, address_item *addr, |
| 40 | struct passwd *pw, int verify, address_item **addr_local, |
| 41 | address_item **addr_remote, address_item **addr_new, |
| 42 | address_item **addr_succeed) {return 0;} |
| 43 | |
| 44 | #else /*!MACRO_PREDEF*/ |
| 45 | |
| 46 | |
| 47 | |
| 48 | /************************************************* |
| 49 | * Initialization entry point * |
| 50 | *************************************************/ |
| 51 | |
| 52 | /* Called for each instance, after its options have been read, to enable |
| 53 | consistency checks to be done, or anything else that needs to be set up. */ |
| 54 | |
| 55 | void accept_router_init(router_instance *rblock) |
| 56 | { |
| 57 | /* |
| 58 | accept_router_options_block *ob = |
| 59 | (accept_router_options_block *)(rblock->options_block); |
| 60 | */ |
| 61 | |
| 62 | /* By default, log deliveries via this router as local deliveries. We can't |
| 63 | just leave it as TRUE_UNSET, because the global default is FALSE. */ |
| 64 | |
| 65 | if (rblock->log_as_local == TRUE_UNSET) rblock->log_as_local = TRUE; |
| 66 | } |
| 67 | |
| 68 | |
| 69 | |
| 70 | /************************************************* |
| 71 | * Main entry point * |
| 72 | *************************************************/ |
| 73 | |
| 74 | /* See local README for interface description. This router returns: |
| 75 | |
| 76 | DEFER |
| 77 | . verifying the errors address caused a deferment or a big disaster such |
| 78 | as an expansion failure (rf_get_errors_address) |
| 79 | . expanding a headers_{add,remove} string caused a deferment or another |
| 80 | expansion error (rf_get_munge_headers) |
| 81 | . a problem in rf_get_transport: no transport when one is needed; |
| 82 | failed to expand dynamic transport; failed to find dynamic transport |
| 83 | . failure to expand or find a uid/gid (rf_get_ugid via rf_queue_add) |
| 84 | |
| 85 | OK |
| 86 | added address to addr_local or addr_remote, as appropriate for the |
| 87 | type of transport |
| 88 | */ |
| 89 | |
| 90 | int accept_router_entry( |
| 91 | router_instance *rblock, /* data for this instantiation */ |
| 92 | address_item *addr, /* address we are working on */ |
| 93 | struct passwd *pw, /* passwd entry after check_local_user */ |
| 94 | int verify, /* v_none/v_recipient/v_sender/v_expn */ |
| 95 | address_item **addr_local, /* add it to this if it's local */ |
| 96 | address_item **addr_remote, /* add it to this if it's remote */ |
| 97 | address_item **addr_new, /* put new addresses on here */ |
| 98 | address_item **addr_succeed) /* put old address here on success */ |
| 99 | { |
| 100 | /* |
| 101 | accept_router_options_block *ob = |
| 102 | (accept_router_options_block *)(rblock->options_block); |
| 103 | */ |
| 104 | int rc; |
| 105 | uschar *errors_to; |
| 106 | uschar *remove_headers; |
| 107 | header_line *extra_headers; |
| 108 | |
| 109 | addr_new = addr_new; /* Keep picky compilers happy */ |
| 110 | addr_succeed = addr_succeed; |
| 111 | |
| 112 | DEBUG(D_route) debug_printf("%s router called for %s\n domain = %s\n", |
| 113 | rblock->name, addr->address, addr->domain); |
| 114 | |
| 115 | /* Set up the errors address, if any. */ |
| 116 | |
| 117 | rc = rf_get_errors_address(addr, rblock, verify, &errors_to); |
| 118 | if (rc != OK) return rc; |
| 119 | |
| 120 | /* Set up the additional and removable headers for the address. */ |
| 121 | |
| 122 | rc = rf_get_munge_headers(addr, rblock, &extra_headers, &remove_headers); |
| 123 | if (rc != OK) return rc; |
| 124 | |
| 125 | /* Set the transport and accept the address; update its errors address and |
| 126 | header munging. Initialization ensures that there is a transport except when |
| 127 | verifying. */ |
| 128 | |
| 129 | if (!rf_get_transport(rblock->transport_name, &(rblock->transport), |
| 130 | addr, rblock->name, NULL)) return DEFER; |
| 131 | |
| 132 | addr->transport = rblock->transport; |
| 133 | addr->prop.errors_address = errors_to; |
| 134 | addr->prop.extra_headers = extra_headers; |
| 135 | addr->prop.remove_headers = remove_headers; |
| 136 | |
| 137 | return rf_queue_add(addr, addr_local, addr_remote, rblock, pw)? OK : DEFER; |
| 138 | } |
| 139 | |
| 140 | #endif /*!MACRO_PREDEF*/ |
| 141 | /* End of routers/accept.c */ |