From 28397cae4102ac3f08576ebaf071ad92683097e8 Mon Sep 17 00:00:00 2001 From: Emmanuel Dreyfus Date: Thu, 2 Apr 2015 15:51:30 +0200 Subject: Avoid conflict between contrib/uuid and system uuid glusterfs relies on Linux uuid implementation, which API is incompatible with most other systems's uuid. As a result, libglusterfs has to embed contrib/uuid, which is the Linux implementation, on non Linux systems. This implementation is incompatible with systtem's built in, but the symbols have the same names. Usually this is not a problem because when we link with -lglusterfs, libc's symbols are trumped. However there is a problem when a program not linked with -lglusterfs will dlopen() glusterfs component. In such a case, libc's uuid implementation is already loaded in the calling program, and it will be used instead of libglusterfs's implementation, causing crashes. A possible workaround is to use pre-load libglusterfs in the calling program (using LD_PRELOAD on NetBSD for instance), but such a mechanism is not portable, nor is it flexible. A much better approach is to rename libglusterfs's uuid_* functions to gf_uuid_* to avoid any possible conflict. This is what this change attempts. BUG: 1206587 Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a Signed-off-by: Emmanuel Dreyfus Reviewed-on: http://review.gluster.org/10017 Tested-by: Gluster Build System Reviewed-by: Niels de Vos --- xlators/mgmt/glusterd/src/glusterd-quota.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'xlators/mgmt/glusterd/src/glusterd-quota.c') diff --git a/xlators/mgmt/glusterd/src/glusterd-quota.c b/xlators/mgmt/glusterd/src/glusterd-quota.c index 9179bf63ba9..08e5d97a26b 100644 --- a/xlators/mgmt/glusterd/src/glusterd-quota.c +++ b/xlators/mgmt/glusterd/src/glusterd-quota.c @@ -554,7 +554,7 @@ glusterd_find_gfid_match (uuid_t gfid, unsigned char *buf, size_t bytes_read, while (gfid_index != bytes_read) { memcpy ((void *)tmp_buf, (void *)&buf[gfid_index], 16); - if (!uuid_compare (gfid, tmp_buf)) { + if (!gf_uuid_compare (gfid, tmp_buf)) { if (opcode == GF_QUOTA_OPTION_TYPE_REMOVE) { shift_count = bytes_read - (gfid_index + 16); memmove ((void *)&buf[gfid_index], @@ -674,7 +674,7 @@ glusterd_store_quota_config (glusterd_volinfo_t *volinfo, char *path, ret = -1; goto out; } - uuid_parse (gfid_str, gfid); + gf_uuid_parse (gfid_str, gfid); for (;;) { bytes_read = read (conf_fd, (void*)&buf, entry_sz); @@ -1251,7 +1251,7 @@ glusterd_get_gfid_from_brick (dict_t *dict, glusterd_volinfo_t *volinfo, goto out; } - if (uuid_compare (brickinfo->uuid, MY_UUID)) + if (gf_uuid_compare (brickinfo->uuid, MY_UUID)) continue; if (brickinfo->vg[0]) -- cgit