diff options
Diffstat (limited to 'contrib/sendmail/libmilter/engine.c')
| -rw-r--r-- | contrib/sendmail/libmilter/engine.c | 143 |
1 files changed, 140 insertions, 3 deletions
diff --git a/contrib/sendmail/libmilter/engine.c b/contrib/sendmail/libmilter/engine.c index 9002a0b..a2d3e1e 100644 --- a/contrib/sendmail/libmilter/engine.c +++ b/contrib/sendmail/libmilter/engine.c @@ -9,7 +9,7 @@ */ #include <sm/gen.h> -SM_RCSID("@(#)$Id: engine.c,v 8.162 2008/02/27 01:34:14 ca Exp $") +SM_RCSID("@(#)$Id: engine.c,v 8.166 2009/11/06 00:57:07 ca Exp $") #include "libmilter.h" @@ -113,6 +113,7 @@ static void fix_stm __P((SMFICTX_PTR)); static bool trans_ok __P((int, int)); static char **dec_argv __P((char *, size_t)); static int dec_arg2 __P((char *, size_t, char **, char **)); +static void mi_clr_symlist __P((SMFICTX_PTR)); #if _FFR_WORKERS_POOL static bool mi_rd_socket_ready __P((int)); @@ -758,6 +759,69 @@ mi_clr_macros(ctx, m) } /* +** MI_CLR_SYMLIST -- clear list of macros +** +** Parameters: +** ctx -- context structure +** +** Returns: +** None. +*/ + +static void +mi_clr_symlist(ctx) + SMFICTX *ctx; +{ + int i; + + SM_ASSERT(ctx != NULL); + for (i = SMFIM_FIRST; i <= SMFIM_LAST; i++) + { + if (ctx->ctx_mac_list[i] != NULL) + { + free(ctx->ctx_mac_list[i]); + ctx->ctx_mac_list[i] = NULL; + } + } +} + +/* +** MI_CLR_CTX -- clear context +** +** Parameters: +** ctx -- context structure +** +** Returns: +** None. +*/ + +void +mi_clr_ctx(ctx) + SMFICTX *ctx; +{ + SM_ASSERT(ctx != NULL); + if (ValidSocket(ctx->ctx_sd)) + { + (void) closesocket(ctx->ctx_sd); + ctx->ctx_sd = INVALID_SOCKET; + } + if (ctx->ctx_reply != NULL) + { + free(ctx->ctx_reply); + ctx->ctx_reply = NULL; + } + if (ctx->ctx_privdata != NULL) + { + smi_log(SMI_LOG_WARN, + "%s: private data not NULL", + ctx->ctx_smfi->xxfi_name); + } + mi_clr_macros(ctx, 0); + mi_clr_symlist(ctx); + free(ctx); +} + +/* ** ST_OPTIONNEG -- negotiate options ** ** Parameters: @@ -771,8 +835,11 @@ static int st_optionneg(g) genarg *g; { - mi_int32 i, v, fake_pflags; + mi_int32 i, v, fake_pflags, internal_pflags; SMFICTX_PTR ctx; +#if _FFR_MILTER_CHECK + bool testmode = false; +#endif /* _FFR_MILTER_CHECK */ int (*fi_negotiate) __P((SMFICTX *, unsigned long, unsigned long, unsigned long, unsigned long, @@ -826,6 +893,7 @@ st_optionneg(g) v = SMFI_V1_ACTS; ctx->ctx_mta_aflags = v; /* MTA action flags */ + internal_pflags = 0; (void) memcpy((void *) &i, (void *) &(g->a_buf[MILTER_LEN_BYTES * 2]), MILTER_LEN_BYTES); v = ntohl(i); @@ -833,7 +901,51 @@ st_optionneg(g) /* no flags? set to default value for V1 protocol */ if (v == 0) v = SMFI_V1_PROT; - ctx->ctx_mta_pflags = v; /* MTA protocol flags */ +#if _FFR_MDS_NEGOTIATE + else if (ctx->ctx_smfi->xxfi_version >= SMFI_VERSION_MDS) + { + /* + ** Allow changing the size only if milter is compiled + ** against a version that supports this. + ** If a milter is dynamically linked against a newer + ** libmilter version, we don't want to "surprise" + ** it with a larger buffer as it may rely on it + ** even though it is not documented as a limit. + */ + + if (bitset(SMFIP_MDS_1M, v)) + { + internal_pflags |= SMFIP_MDS_1M; + (void) smfi_setmaxdatasize(MILTER_MDS_1M); + } + else if (bitset(SMFIP_MDS_256K, v)) + { + internal_pflags |= SMFIP_MDS_256K; + (void) smfi_setmaxdatasize(MILTER_MDS_256K); + } + } +# if 0 + /* don't log this for now... */ + else if (ctx->ctx_smfi->xxfi_version < SMFI_VERSION_MDS && + bitset(SMFIP_MDS_1M|SMFIP_MDS_256K, v)) + { + smi_log(SMI_LOG_WARN, + "%s: st_optionneg[%ld]: milter version=%X, trying flags=%X", + ctx->ctx_smfi->xxfi_name, + (long) ctx->ctx_id, ctx->ctx_smfi->xxfi_version, v); + } +# endif /* 0 */ +#endif /* _FFR_MDS_NEGOTIATE */ + + /* + ** MTA protocol flags. + ** We pass the internal flags to the milter as "read only", + ** i.e., a milter can read them so it knows which size + ** will be used, but any changes by a milter will be ignored + ** (see below, search for SMFI_INTERNAL). + */ + + ctx->ctx_mta_pflags = (v & ~SMFI_INTERNAL) | internal_pflags; /* ** Copy flags from milter struct into libmilter context; @@ -880,6 +992,12 @@ st_optionneg(g) 0, 0, &m_aflags, &m_pflags, &m_f2, &m_f3); +#if _FFR_MILTER_CHECK + testmode = bitset(SMFIP_TEST, m_pflags); + if (testmode) + m_pflags &= ~SMFIP_TEST; +#endif /* _FFR_MILTER_CHECK */ + /* ** Types of protocol flags (pflags): ** 1. do NOT send protocol step X @@ -1011,6 +1129,25 @@ st_optionneg(g) , ctx->ctx_mta_aflags, ctx->ctx_mta_pflags , ctx->ctx_aflags, ctx->ctx_pflags); +#if _FFR_MILTER_CHECK + if (ctx->ctx_dbg > 3) + sm_dprintf("[%ld] milter_negotiate:" + " testmode=%d, pflags2mta=%X, internal_pflags=%X\n" + , (long) ctx->ctx_id, testmode + , ctx->ctx_pflags2mta, internal_pflags); + + /* in test mode: take flags without further modifications */ + if (!testmode) + /* Warning: check statement below! */ +#endif /* _FFR_MILTER_CHECK */ + + /* + ** Remove the internal flags that might have been set by a milter + ** and set only those determined above. + */ + + ctx->ctx_pflags2mta = (ctx->ctx_pflags2mta & ~SMFI_INTERNAL) + | internal_pflags; return _SMFIS_OPTIONS; } |
