From df361c105e153ec361c3eb79025f39124b0c66fa Mon Sep 17 00:00:00 2001
From: Eric Bollengier <eric@eb.homelinux.org>
Date: Fri, 5 Nov 2010 18:52:36 +0100
Subject: [PATCH] Permit to get Where/RegexWhere from Plugin and give access to
 Accurate data

---
 bacula/src/filed/fd_plugins.c | 55 ++++++++++++++++++++++++++++++++++-
 bacula/src/filed/fd_plugins.h |  7 +++--
 bacula/src/findlib/find_one.c |  2 +-
 bacula/src/findlib/protos.h   |  1 +
 4 files changed, 61 insertions(+), 4 deletions(-)

diff --git a/bacula/src/filed/fd_plugins.c b/bacula/src/filed/fd_plugins.c
index cc31de09b6..44f9be503d 100644
--- a/bacula/src/filed/fd_plugins.c
+++ b/bacula/src/filed/fd_plugins.c
@@ -44,6 +44,7 @@ const char *plugin_type = "-fd.so";
 #endif
 
 extern int save_file(JCR *jcr, FF_PKT *ff_pkt, bool top_level);
+extern bool check_changes(JCR *jcr, FF_PKT *ff_pkt);
 
 /* Function pointers to be set here */
 extern DLL_IMP_EXP int     (*plugin_bopen)(BFILE *bfd, const char *fname, int flags, mode_t mode);
@@ -73,6 +74,7 @@ static bRC baculaNewOptions(bpContext *ctx);
 static bRC baculaNewInclude(bpContext *ctx);
 static bool is_plugin_compatible(Plugin *plugin);
 static bool get_plugin_name(JCR *jcr, char *cmd, int *ret);
+static bRC baculaCheckChanges(bpContext *ctx, struct save_pkt *sp);
 
 /*
  * These will be plugged into the global pointer structure for
@@ -108,7 +110,8 @@ static bFuncs bfuncs = {
    baculaAddRegex,
    baculaAddWild,
    baculaNewOptions,
-   baculaNewInclude
+   baculaNewInclude,
+   baculaCheckChanges
 };
 
 /* 
@@ -1014,6 +1017,12 @@ static bRC baculaGetValue(bpContext *ctx, bVariable var, void *value)
    case bVarWorkingDir:
       *(void **)value = me->working_directory;
       break;
+   case bVarWhere:
+      *(char **)value = jcr->where;
+      break;
+   case bVarRegexWhere:
+      *(char **)value = jcr->RegexWhere;
+      break;
    }
    return bRC_OK;
 }
@@ -1243,6 +1252,50 @@ static bRC baculaNewInclude(bpContext *ctx)
 }
 
 
+/* 
+ * Check if a file have to be backuped using Accurate code
+ */
+static bRC baculaCheckChanges(bpContext *ctx, struct save_pkt *sp)
+{
+   JCR *jcr;
+   bacula_ctx *bctx;
+   FF_PKT *ff_pkt;
+   bRC ret = bRC_Error;
+
+   if (!is_ctx_good(ctx, jcr, bctx)) {
+      goto bail_out;
+   }
+   if (!sp) {
+      goto bail_out;
+   }
+   
+   ff_pkt = jcr->ff;
+   /*
+    * Copy fname and link because save_file() zaps them.  This 
+    *  avoids zaping the plugin's strings.
+    */
+   ff_pkt->type = sp->type;
+   if (!sp->fname) {
+      Jmsg0(jcr, M_FATAL, 0, _("Command plugin: no fname in baculaCheckChanges packet.\n"));
+      goto bail_out;
+   }
+
+   ff_pkt->fname = sp->fname;
+   ff_pkt->link = sp->link;
+   memcpy(&ff_pkt->statp, &sp->statp, sizeof(ff_pkt->statp));
+
+   if (check_changes(jcr, ff_pkt))  {
+      ret = bRC_OK;
+   } else {
+      ret = bRC_Seen;
+   }
+
+bail_out:
+   Dmsg1(100, "checkChanges=%i\n", ret);
+   return ret;
+}
+
+
 #ifdef TEST_PROGRAM
 
 int     (*plugin_bopen)(JCR *jcr, const char *fname, int flags, mode_t mode) = NULL;
diff --git a/bacula/src/filed/fd_plugins.h b/bacula/src/filed/fd_plugins.h
index 8ff6b44ff0..8fd4c6275d 100644
--- a/bacula/src/filed/fd_plugins.h
+++ b/bacula/src/filed/fd_plugins.h
@@ -175,7 +175,9 @@ typedef enum {
   bVarFileSeen  = 10,
   bVarVssObject = 11,
   bVarVssDllHandle = 12,
-  bVarWorkingDir = 13
+  bVarWorkingDir = 13,
+  bVarWhere      = 14,
+  bVarRegexWhere = 15
 } bVariable;
 
 /* Events that are passed to plugin */
@@ -254,6 +256,7 @@ typedef struct s_baculaFuncs {
    bRC (*AddWild)(bpContext *ctx, const char *item, int type);
    bRC (*NewOptions)(bpContext *ctx);
    bRC (*NewInclude)(bpContext *ctx);
+   bRC (*checkChanges)(bpContext *ctx, struct save_pkt *sp);
 } bFuncs;
 
 
@@ -272,7 +275,7 @@ typedef enum {
 
 
 #define FD_PLUGIN_MAGIC     "*FDPluginData*" 
-#define FD_PLUGIN_INTERFACE_VERSION  4
+#define FD_PLUGIN_INTERFACE_VERSION  5
 
 typedef struct s_pluginInfo {
    uint32_t size;
diff --git a/bacula/src/findlib/find_one.c b/bacula/src/findlib/find_one.c
index 1d8313f029..6cad341518 100644
--- a/bacula/src/findlib/find_one.c
+++ b/bacula/src/findlib/find_one.c
@@ -274,7 +274,7 @@ bool has_file_changed(JCR *jcr, FF_PKT *ff_pkt)
  * For incremental/diffential or accurate backups, we
  *   determine if the current file has changed.
  */
-static bool check_changes(JCR *jcr, FF_PKT *ff_pkt)
+bool check_changes(JCR *jcr, FF_PKT *ff_pkt)
 {
    /* in special mode (like accurate backup), the programmer can 
     * choose his comparison function.
diff --git a/bacula/src/findlib/protos.h b/bacula/src/findlib/protos.h
index a272a15e60..71076c6b9d 100644
--- a/bacula/src/findlib/protos.h
+++ b/bacula/src/findlib/protos.h
@@ -69,6 +69,7 @@ int   find_one_file(JCR *jcr, FF_PKT *ff,
                char *p, dev_t parent_device, bool top_level);
 int   term_find_one(FF_PKT *ff);
 bool  has_file_changed(JCR *jcr, FF_PKT *ff_pkt);
+bool check_changes(JCR *jcr, FF_PKT *ff_pkt);
 
 /* From get_priv.c */
 int enable_backup_privileges(JCR *jcr, int ignore_errors);
-- 
2.39.5