#include <sys_defs.h>
#include <sys/stat.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <msg.h>
#include <vstream.h>
#include <vstring.h>
#include <mymalloc.h>
#include <iostuff.h>
#include <myflock.h>
#include "mail_queue.h"
#include "mail_proto.h"
#include "mail_open_ok.h"
#include "recipient_list.h"
#include "dsn.h"
#include "dsn_print.h"
#include "deliver_request.h"
#include "rcpt_buf.h"
static int deliver_request_initial(VSTREAM *stream)
{
int err;
if (msg_verbose)
msg_info("deliver_request_initial: send initial status");
attr_print(stream, ATTR_FLAG_NONE,
SEND_ATTR_INT(MAIL_ATTR_STATUS, 0),
ATTR_TYPE_END);
if ((err = vstream_fflush(stream)) != 0)
if (msg_verbose)
msg_warn("send initial status: %m");
return (err);
}
static int deliver_request_final(VSTREAM *stream, DELIVER_REQUEST *request,
int status)
{
DSN *hop_status;
int err;
static DSN dummy_dsn = {"", "", "", "", "", "", ""};
if ((hop_status = request->hop_status) == 0)
hop_status = &dummy_dsn;
if (msg_verbose)
msg_info("deliver_request_final: send: \"%s\" %d",
hop_status->reason, status);
attr_print(stream, ATTR_FLAG_NONE,
SEND_ATTR_FUNC(dsn_print, (void *) hop_status),
SEND_ATTR_INT(MAIL_ATTR_STATUS, status),
ATTR_TYPE_END);
if ((err = vstream_fflush(stream)) != 0)
if (msg_verbose)
msg_warn("send final status: %m");
(void) VSTREAM_GETC(stream);
return (err);
}
static int deliver_request_get(VSTREAM *stream, DELIVER_REQUEST *request)
{
const char *myname = "deliver_request_get";
const char *path;
struct stat st;
static VSTRING *queue_name;
static VSTRING *queue_id;
static VSTRING *nexthop;
static VSTRING *encoding;
static VSTRING *address;
static VSTRING *client_name;
static VSTRING *client_addr;
static VSTRING *client_port;
static VSTRING *client_proto;
static VSTRING *client_helo;
static VSTRING *sasl_method;
static VSTRING *sasl_username;
static VSTRING *sasl_sender;
static VSTRING *log_ident;
static VSTRING *rewrite_context;
static VSTRING *dsn_envid;
static RCPT_BUF *rcpt_buf;
int rcpt_count;
int smtputf8;
int dsn_ret;
if (queue_name == 0) {
queue_name = vstring_alloc(10);
queue_id = vstring_alloc(10);
nexthop = vstring_alloc(10);
encoding = vstring_alloc(10);
address = vstring_alloc(10);
client_name = vstring_alloc(10);
client_addr = vstring_alloc(10);
client_port = vstring_alloc(10);
client_proto = vstring_alloc(10);
client_helo = vstring_alloc(10);
sasl_method = vstring_alloc(10);
sasl_username = vstring_alloc(10);
sasl_sender = vstring_alloc(10);
log_ident = vstring_alloc(10);
rewrite_context = vstring_alloc(10);
dsn_envid = vstring_alloc(10);
rcpt_buf = rcpb_create();
}
if (attr_scan(stream, ATTR_FLAG_STRICT,
RECV_ATTR_INT(MAIL_ATTR_FLAGS, &request->flags),
RECV_ATTR_STR(MAIL_ATTR_QUEUE, queue_name),
RECV_ATTR_STR(MAIL_ATTR_QUEUEID, queue_id),
RECV_ATTR_LONG(MAIL_ATTR_OFFSET, &request->data_offset),
RECV_ATTR_LONG(MAIL_ATTR_SIZE, &request->data_size),
RECV_ATTR_STR(MAIL_ATTR_NEXTHOP, nexthop),
RECV_ATTR_STR(MAIL_ATTR_ENCODING, encoding),
RECV_ATTR_INT(MAIL_ATTR_SMTPUTF8, &smtputf8),
RECV_ATTR_STR(MAIL_ATTR_SENDER, address),
RECV_ATTR_STR(MAIL_ATTR_DSN_ENVID, dsn_envid),
RECV_ATTR_INT(MAIL_ATTR_DSN_RET, &dsn_ret),
RECV_ATTR_FUNC(msg_stats_scan, (void *) &request->msg_stats),
RECV_ATTR_STR(MAIL_ATTR_LOG_CLIENT_NAME, client_name),
RECV_ATTR_STR(MAIL_ATTR_LOG_CLIENT_ADDR, client_addr),
RECV_ATTR_STR(MAIL_ATTR_LOG_CLIENT_PORT, client_port),
RECV_ATTR_STR(MAIL_ATTR_LOG_PROTO_NAME, client_proto),
RECV_ATTR_STR(MAIL_ATTR_LOG_HELO_NAME, client_helo),
RECV_ATTR_STR(MAIL_ATTR_SASL_METHOD, sasl_method),
RECV_ATTR_STR(MAIL_ATTR_SASL_USERNAME, sasl_username),
RECV_ATTR_STR(MAIL_ATTR_SASL_SENDER, sasl_sender),
RECV_ATTR_STR(MAIL_ATTR_LOG_IDENT, log_ident),
RECV_ATTR_STR(MAIL_ATTR_RWR_CONTEXT, rewrite_context),
RECV_ATTR_INT(MAIL_ATTR_RCPT_COUNT, &rcpt_count),
ATTR_TYPE_END) != 23) {
msg_warn("%s: error receiving common attributes", myname);
return (-1);
}
if (mail_open_ok(vstring_str(queue_name),
vstring_str(queue_id), &st, &path) == 0)
return (-1);
if (request->msg_stats.agent_handoff.tv_sec == 0)
GETTIMEOFDAY(&request->msg_stats.agent_handoff);
request->queue_name = mystrdup(vstring_str(queue_name));
request->queue_id = mystrdup(vstring_str(queue_id));
request->nexthop = mystrdup(vstring_str(nexthop));
request->encoding = mystrdup(vstring_str(encoding));
request->smtputf8 = smtputf8;
request->sender = mystrdup(vstring_str(address));
request->client_name = mystrdup(vstring_str(client_name));
request->client_addr = mystrdup(vstring_str(client_addr));
request->client_port = mystrdup(vstring_str(client_port));
request->client_proto = mystrdup(vstring_str(client_proto));
request->client_helo = mystrdup(vstring_str(client_helo));
request->sasl_method = mystrdup(vstring_str(sasl_method));
request->sasl_username = mystrdup(vstring_str(sasl_username));
request->sasl_sender = mystrdup(vstring_str(sasl_sender));
request->log_ident = mystrdup(vstring_str(log_ident));
request->rewrite_context = mystrdup(vstring_str(rewrite_context));
request->dsn_envid = mystrdup(vstring_str(dsn_envid));
request->dsn_ret = dsn_ret;
while (rcpt_count-- > 0) {
if (attr_scan(stream, ATTR_FLAG_STRICT,
RECV_ATTR_FUNC(rcpb_scan, (void *) rcpt_buf),
ATTR_TYPE_END) != 1) {
msg_warn("%s: error receiving recipient attributes", myname);
return (-1);
}
recipient_list_add(&request->rcpt_list, rcpt_buf->offset,
vstring_str(rcpt_buf->dsn_orcpt),
rcpt_buf->dsn_notify,
vstring_str(rcpt_buf->orig_addr),
vstring_str(rcpt_buf->address));
}
if (request->rcpt_list.len <= 0) {
msg_warn("%s: no recipients in delivery request for destination %s",
request->queue_id, request->nexthop);
return (-1);
}
#define DELIVER_LOCK_MODE (MYFLOCK_OP_SHARED | MYFLOCK_OP_NOWAIT)
request->fp =
mail_queue_open(request->queue_name, request->queue_id, O_RDWR, 0);
if (request->fp == 0) {
if (errno != ENOENT)
msg_fatal("open %s %s: %m", request->queue_name, request->queue_id);
msg_warn("open %s %s: %m", request->queue_name, request->queue_id);
return (-1);
}
if (msg_verbose)
msg_info("%s: file %s", myname, VSTREAM_PATH(request->fp));
if (myflock(vstream_fileno(request->fp), INTERNAL_LOCK, DELIVER_LOCK_MODE) < 0)
msg_fatal("shared lock %s: %m", VSTREAM_PATH(request->fp));
close_on_exec(vstream_fileno(request->fp), CLOSE_ON_EXEC);
return (0);
}
static DELIVER_REQUEST *deliver_request_alloc(void)
{
DELIVER_REQUEST *request;
request = (DELIVER_REQUEST *) mymalloc(sizeof(*request));
request->fp = 0;
request->queue_name = 0;
request->queue_id = 0;
request->nexthop = 0;
request->encoding = 0;
request->sender = 0;
request->data_offset = 0;
request->data_size = 0;
recipient_list_init(&request->rcpt_list, RCPT_LIST_INIT_STATUS);
request->hop_status = 0;
request->client_name = 0;
request->client_addr = 0;
request->client_port = 0;
request->client_proto = 0;
request->client_helo = 0;
request->sasl_method = 0;
request->sasl_username = 0;
request->sasl_sender = 0;
request->log_ident = 0;
request->rewrite_context = 0;
request->dsn_envid = 0;
return (request);
}
static void deliver_request_free(DELIVER_REQUEST *request)
{
if (request->fp)
vstream_fclose(request->fp);
if (request->queue_name)
myfree(request->queue_name);
if (request->queue_id)
myfree(request->queue_id);
if (request->nexthop)
myfree(request->nexthop);
if (request->encoding)
myfree(request->encoding);
if (request->sender)
myfree(request->sender);
recipient_list_free(&request->rcpt_list);
if (request->hop_status)
dsn_free(request->hop_status);
if (request->client_name)
myfree(request->client_name);
if (request->client_addr)
myfree(request->client_addr);
if (request->client_port)
myfree(request->client_port);
if (request->client_proto)
myfree(request->client_proto);
if (request->client_helo)
myfree(request->client_helo);
if (request->sasl_method)
myfree(request->sasl_method);
if (request->sasl_username)
myfree(request->sasl_username);
if (request->sasl_sender)
myfree(request->sasl_sender);
if (request->log_ident)
myfree(request->log_ident);
if (request->rewrite_context)
myfree(request->rewrite_context);
if (request->dsn_envid)
myfree(request->dsn_envid);
myfree((void *) request);
}
DELIVER_REQUEST *deliver_request_read(VSTREAM *stream)
{
DELIVER_REQUEST *request;
if (deliver_request_initial(stream) != 0)
return (0);
(void) read_wait(vstream_fileno(stream), -1);
if (peekfd(vstream_fileno(stream)) <= 0)
return (0);
#define XXX_DEFER_STATUS -1
request = deliver_request_alloc();
if (deliver_request_get(stream, request) < 0) {
deliver_request_done(stream, request, XXX_DEFER_STATUS);
request = 0;
}
return (request);
}
int deliver_request_done(VSTREAM *stream, DELIVER_REQUEST *request, int status)
{
int err;
err = deliver_request_final(stream, request, status);
deliver_request_free(request);
return (err);
}