From 4faa02fb3016572bc8a6496c35554e4e2075486f Mon Sep 17 00:00:00 2001 From: Jeremy Allison Date: Fri, 18 Mar 2005 02:32:35 +0000 Subject: r5874: Work in progress. EA list infolevel. Jeremy (This used to be commit b033a302b59e1e72f4a72fce54abaae5c1c29f18) --- source3/smbd/trans2.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 75 insertions(+), 8 deletions(-) (limited to 'source3') diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c index 9991ff477e..0aece62018 100644 --- a/source3/smbd/trans2.c +++ b/source3/smbd/trans2.c @@ -152,7 +152,8 @@ static BOOL get_ea_value(TALLOC_CTX *mem_ctx, connection_struct *conn, files_str Return a linked list of the total EA's. Plus the total size ****************************************************************************/ -static struct ea_list *get_ea_list(TALLOC_CTX *mem_ctx, connection_struct *conn, files_struct *fsp, const char *fname, size_t *pea_total_len) +static struct ea_list *get_ea_list_from_file(TALLOC_CTX *mem_ctx, connection_struct *conn, files_struct *fsp, + const char *fname, size_t *pea_total_len) { /* Get a list of all xattrs. Max namesize is 64k. */ size_t ea_namelist_size = 1024; @@ -186,7 +187,7 @@ static struct ea_list *get_ea_list(TALLOC_CTX *mem_ctx, connection_struct *conn, if (sizeret == -1) return NULL; - DEBUG(10,("get_ea_list: ea_namelist size = %d\n", sizeret )); + DEBUG(10,("get_ea_list_from_file: ea_namelist size = %d\n", sizeret )); if (sizeret) { for (p = ea_namelist; p - ea_namelist < sizeret; p += strlen(p) + 1) { @@ -207,7 +208,7 @@ static struct ea_list *get_ea_list(TALLOC_CTX *mem_ctx, connection_struct *conn, fstring dos_ea_name; push_ascii_fstring(dos_ea_name, listp->ea.name); *pea_total_len += 4 + strlen(dos_ea_name) + 1 + listp->ea.value.length; - DEBUG(10,("get_ea_list: total_len = %u, %s, val len = %u\n", + DEBUG(10,("get_ea_list_from_file: total_len = %u, %s, val len = %u\n", *pea_total_len, dos_ea_name, (unsigned int)listp->ea.value.length )); } @@ -219,7 +220,7 @@ static struct ea_list *get_ea_list(TALLOC_CTX *mem_ctx, connection_struct *conn, } } - DEBUG(10,("get_ea_list: total_len = %u\n", *pea_total_len)); + DEBUG(10,("get_ea_list_from_file: total_len = %u\n", *pea_total_len)); return ea_list_head; } @@ -282,7 +283,7 @@ static unsigned int estimate_ea_size(connection_struct *conn, files_struct *fsp, return 0; } mem_ctx = talloc_init("estimate_ea_size"); - (void)get_ea_list(mem_ctx, conn, fsp, fname, &total_ea_len); + (void)get_ea_list_from_file(mem_ctx, conn, fsp, fname, &total_ea_len); talloc_destroy(mem_ctx); return total_ea_len; } @@ -295,7 +296,7 @@ static void canonicalize_ea_name(connection_struct *conn, files_struct *fsp, con { size_t total_ea_len; TALLOC_CTX *mem_ctx = talloc_init("canonicalize_ea_name"); - struct ea_list *ea_list = get_ea_list(mem_ctx, conn, fsp, fname, &total_ea_len); + struct ea_list *ea_list = get_ea_list_from_file(mem_ctx, conn, fsp, fname, &total_ea_len); for (; ea_list; ea_list = ea_list->next) { if (strequal(&unix_ea_name[5], ea_list->ea.name)) { @@ -439,6 +440,57 @@ static struct ea_list *read_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t d return ea_list_head; } +/**************************************************************************** + Count the total EA size needed. +****************************************************************************/ + +static size_t ea_list_size(struct ea_list *ealist) +{ + fstring dos_ea_name; + struct ea_list *listp; + size_t ret = 0; + + for (listp = ealist; listp; listp = listp->next) { + push_ascii_fstring(dos_ea_name, listp->ea.name); + ret += 4 + strlen(dos_ea_name) + 1 + listp->ea.value.length; + } + /* Add on 4 for total length. */ + if (ret) { + ret += 4; + } + + return ret; +} + +/**************************************************************************** + Return a union of EA's from a file list and a list of names. +****************************************************************************/ + +static struct ea_list *ea_list_union(struct ea_list *name_list, struct ea_list *file_list, size_t *total_ea_len) +{ + struct ea_list *nlistp, *flistp; + + for (flistp = file_list; flistp;) { + struct ea_list *rem_entry = flistp; + + for (nlistp = name_list; nlistp; nlistp = nlistp->next) { + if (strequal(nlistp->ea.name, flistp->ea.name)) { + break; + } + } + + flistp = flistp->next; + + if (nlistp == NULL) { + /* Remove this entry from file ea list. */ + DLIST_REMOVE(file_list, rem_entry); + } + } + + *total_ea_len = ea_list_size(file_list); + return file_list; +} + /**************************************************************************** Send the required number of replies back. We assume all fields other than the data fields are @@ -2608,14 +2660,29 @@ total_data=%u (should be %u)\n", (unsigned int)total_data, (unsigned int)IVAL(pd case SMB_INFO_QUERY_EAS_FROM_LIST: { + size_t total_ea_len = 0; + struct ea_list *ea_file_list = NULL; + DEBUG(10,("call_trans2qfilepathinfo: SMB_INFO_QUERY_EAS_FROM_LIST\n")); - data_size = 24; put_dos_date2(pdata,0,c_time); put_dos_date2(pdata,4,sbuf.st_atime); put_dos_date2(pdata,8,sbuf.st_mtime); SIVAL(pdata,12,(uint32)file_size); SIVAL(pdata,16,(uint32)allocation_size); SIVAL(pdata,20,mode); + + ea_file_list = get_ea_list_from_file(ea_ctx, conn, fsp, fname, &total_ea_len); + + ea_list = ea_list_union(ea_list, ea_file_list, &total_ea_len); + + if (!ea_list || (total_ea_len > data_size - 24)) { + talloc_destroy(ea_ctx); + data_size = 4; + break; + } + + data_size = fill_ea_buffer(ea_ctx, pdata + 24, data_size - 24, conn, ea_list); + data_size += 24; talloc_destroy(ea_ctx); break; } @@ -2632,7 +2699,7 @@ total_data=%u (should be %u)\n", (unsigned int)total_data, (unsigned int)IVAL(pd return ERROR_NT(NT_STATUS_NO_MEMORY); } - ea_list = get_ea_list(ea_ctx, conn, fsp, fname, &total_ea_len); + ea_list = get_ea_list_from_file(ea_ctx, conn, fsp, fname, &total_ea_len); if (!ea_list || (total_ea_len > data_size)) { talloc_destroy(ea_ctx); data_size = 4; -- cgit