diff options
author | Gluster Ant <bugzilla-bot@gluster.org> | 2018-09-12 17:52:45 +0530 |
---|---|---|
committer | Nigel Babu <nigelb@redhat.com> | 2018-09-12 17:52:45 +0530 |
commit | e16868dede6455cab644805af6fe1ac312775e13 (patch) | |
tree | 15aebdb4fff2d87cf8a72f836816b3aa634da58d /xlators/mgmt/glusterd/src/glusterd-mountbroker.c | |
parent | 45a71c0548b6fd2c757aa2e7b7671a1411948894 (diff) |
Land part 2 of clang-format changes
Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu <nigelb@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-mountbroker.c')
-rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-mountbroker.c | 1224 |
1 files changed, 609 insertions, 615 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-mountbroker.c b/xlators/mgmt/glusterd/src/glusterd-mountbroker.c index 4678d39d9ce..356a4bcca67 100644 --- a/xlators/mgmt/glusterd/src/glusterd-mountbroker.c +++ b/xlators/mgmt/glusterd/src/glusterd-mountbroker.c @@ -31,718 +31,712 @@ #include "glusterd-messages.h" static int -seq_dict_foreach (dict_t *dict, - int (*fn)(char *str, void *data), - void *data) +seq_dict_foreach(dict_t *dict, int (*fn)(char *str, void *data), void *data) { - char index[] = "4294967296"; // 1<<32 - int i = 0; - char *val = NULL; - int ret = 0; - - for (;;i++) { - snprintf(index, sizeof(index), "%d", i); - ret = dict_get_str (dict, index, &val); - if (ret != 0) - return ret == -ENOENT ? 0 : ret; - ret = fn (val, data); - if (ret != 0) - return ret; - } + char index[] = "4294967296"; // 1<<32 + int i = 0; + char *val = NULL; + int ret = 0; + + for (;; i++) { + snprintf(index, sizeof(index), "%d", i); + ret = dict_get_str(dict, index, &val); + if (ret != 0) + return ret == -ENOENT ? 0 : ret; + ret = fn(val, data); + if (ret != 0) + return ret; + } } int -parse_mount_pattern_desc (gf_mount_spec_t *mspec, char *pdesc) +parse_mount_pattern_desc(gf_mount_spec_t *mspec, char *pdesc) #define SYNTAX_ERR -2 { - char *curs = NULL; - char *c2 = NULL; - char sc = '\0'; - char **cc = NULL; - gf_mount_pattern_t *pat = NULL; - int pnum = 0; - int ret = 0; - int lastsup = -1; - int incl = -1; - char **pcc = NULL; - int pnc = 0; - - skipwhite (&pdesc); - - /* a bow to theory */ - if (!*pdesc) - return 0; - - /* count number of components, separated by '&' */ - mspec->len = 0; - for (curs = pdesc; *curs; curs++) { - if (*curs == ')') - mspec->len++; + char *curs = NULL; + char *c2 = NULL; + char sc = '\0'; + char **cc = NULL; + gf_mount_pattern_t *pat = NULL; + int pnum = 0; + int ret = 0; + int lastsup = -1; + int incl = -1; + char **pcc = NULL; + int pnc = 0; + + skipwhite(&pdesc); + + /* a bow to theory */ + if (!*pdesc) + return 0; + + /* count number of components, separated by '&' */ + mspec->len = 0; + for (curs = pdesc; *curs; curs++) { + if (*curs == ')') + mspec->len++; + } + + mspec->patterns = GF_CALLOC(mspec->len, sizeof(*mspec->patterns), + gf_gld_mt_mount_pattern); + if (!mspec->patterns) { + ret = -1; + goto out; + } + + pat = mspec->patterns; + curs = pdesc; + skipwhite(&curs); + for (;;) { + incl = -1; + + /* check for pattern signedness modifier */ + if (*curs == '-') { + pat->negative = _gf_true; + curs++; } - mspec->patterns = GF_CALLOC (mspec->len, sizeof (*mspec->patterns), - gf_gld_mt_mount_pattern); - if (!mspec->patterns) { - ret = -1; - goto out; + /* now should come condition specifier, + * then opening paren + */ + c2 = nwstrtail(curs, "SUB("); + if (c2) { + pat->condition = SET_SUB; + goto got_cond; + } + c2 = nwstrtail(curs, "SUP("); + if (c2) { + pat->condition = SET_SUPER; + lastsup = pat - mspec->patterns; + goto got_cond; + } + c2 = nwstrtail(curs, "EQL("); + if (c2) { + pat->condition = SET_EQUAL; + goto got_cond; + } + c2 = nwstrtail(curs, "MEET("); + if (c2) { + pat->condition = SET_INTERSECT; + goto got_cond; + } + c2 = nwstrtail(curs, "SUB+("); + if (c2) { + pat->condition = SET_SUB; + incl = lastsup; + goto got_cond; } - pat = mspec->patterns; - curs = pdesc; - skipwhite (&curs); - for (;;) { - incl = -1; - - /* check for pattern signedness modifier */ - if (*curs == '-') { - pat->negative = _gf_true; - curs++; - } - - /* now should come condition specifier, - * then opening paren - */ - c2 = nwstrtail (curs, "SUB("); - if (c2) { - pat->condition = SET_SUB; - goto got_cond; - } - c2 = nwstrtail (curs, "SUP("); - if (c2) { - pat->condition = SET_SUPER; - lastsup = pat - mspec->patterns; - goto got_cond; - } - c2 = nwstrtail (curs, "EQL("); - if (c2) { - pat->condition = SET_EQUAL; - goto got_cond; - } - c2 = nwstrtail (curs, "MEET("); - if (c2) { - pat->condition = SET_INTERSECT; - goto got_cond; - } - c2 = nwstrtail (curs, "SUB+("); - if (c2) { - pat->condition = SET_SUB; - incl = lastsup; - goto got_cond; - } + ret = SYNTAX_ERR; + goto out; + got_cond: + curs = c2; + skipwhite(&curs); + /* count the number of components for pattern */ + pnum = *curs == ')' ? 0 : 1; + for (c2 = curs; *c2 != ')';) { + if (strchr("&|", *c2)) { ret = SYNTAX_ERR; goto out; + } + while (!strchr("|&)", *c2) && !isspace(*c2)) + c2++; + skipwhite(&c2); + switch (*c2) { + case ')': + break; + case '\0': + case '&': + ret = SYNTAX_ERR; + goto out; + case '|': + *c2 = ' '; + skipwhite(&c2); + /* fall through */ + default: + pnum++; + } + } + if (incl >= 0) { + pnc = 0; + for (pcc = mspec->patterns[incl].components; *pcc; pcc++) + pnc++; + pnum += pnc; + } + pat->components = GF_CALLOC(pnum + 1, sizeof(*pat->components), + gf_gld_mt_mount_comp_container); + if (!pat->components) { + ret = -1; + goto out; + } - got_cond: - curs = c2; - skipwhite (&curs); - /* count the number of components for pattern */ - pnum = *curs == ')' ? 0 : 1; - for (c2 = curs ;*c2 != ')';) { - if (strchr ("&|", *c2)) { - ret = SYNTAX_ERR; - goto out; - } - while (!strchr ("|&)", *c2) && !isspace (*c2)) - c2++; - skipwhite (&c2); - switch (*c2) { - case ')': - break; - case '\0': - case '&': - ret = SYNTAX_ERR; - goto out; - case '|': - *c2 = ' '; - skipwhite (&c2); - /* fall through */ - default: - pnum++; - } - } - if (incl >= 0) { - pnc = 0; - for (pcc = mspec->patterns[incl].components; *pcc; pcc++) - pnc++; - pnum += pnc; - } - pat->components = GF_CALLOC (pnum + 1, sizeof (*pat->components), - gf_gld_mt_mount_comp_container); - if (!pat->components) { - ret = -1; - goto out; - } - - cc = pat->components; - /* copy over included component set */ - if (incl >= 0) { - memcpy (pat->components, - mspec->patterns[incl].components, - pnc * sizeof (*pat->components)); - cc += pnc; - } - /* parse and add components */ - c2 = ""; /* reset c2 */ - while (*c2 != ')') { - c2 = curs; - while (!isspace (*c2) && *c2 != ')') - c2++; - sc = *c2; - *c2 = '\0';; - *cc = gf_strdup (curs); - if (!*cc) { - ret = -1; - goto out; - } - *c2 = sc; - skipwhite (&c2); - curs = c2; - cc++; - } - - curs++; - skipwhite (&curs); - if (*curs == '&') { - curs++; - skipwhite (&curs); - } - - if (!*curs) - break; - pat++; + cc = pat->components; + /* copy over included component set */ + if (incl >= 0) { + memcpy(pat->components, mspec->patterns[incl].components, + pnc * sizeof(*pat->components)); + cc += pnc; + } + /* parse and add components */ + c2 = ""; /* reset c2 */ + while (*c2 != ')') { + c2 = curs; + while (!isspace(*c2) && *c2 != ')') + c2++; + sc = *c2; + *c2 = '\0'; + ; + *cc = gf_strdup(curs); + if (!*cc) { + ret = -1; + goto out; + } + *c2 = sc; + skipwhite(&c2); + curs = c2; + cc++; } - out: - if (ret == SYNTAX_ERR) { - gf_msg ("glusterd", GF_LOG_ERROR, EINVAL, - GD_MSG_INVALID_ENTRY, "cannot parse mount patterns %s", - pdesc); + curs++; + skipwhite(&curs); + if (*curs == '&') { + curs++; + skipwhite(&curs); } - /* We've allocted a lotta stuff here but don't bother with freeing - * on error, in that case we'll terminate anyway - */ - return ret ? -1 : 0; + if (!*curs) + break; + pat++; + } + +out: + if (ret == SYNTAX_ERR) { + gf_msg("glusterd", GF_LOG_ERROR, EINVAL, GD_MSG_INVALID_ENTRY, + "cannot parse mount patterns %s", pdesc); + } + + /* We've allocted a lotta stuff here but don't bother with freeing + * on error, in that case we'll terminate anyway + */ + return ret ? -1 : 0; } #undef SYNTAX_ERR - const char *georep_mnt_desc_template = - "SUP(" - "aux-gfid-mount " - "acl " - "volfile-server=localhost " - "client-pid=%d " - "user-map-root=%s " - ")" - "SUB+(" - "log-file="DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"*/* " - "log-level=* " - "volfile-id=* " - ")" - "MEET(" - "%s" - ")"; + "SUP(" + "aux-gfid-mount " + "acl " + "volfile-server=localhost " + "client-pid=%d " + "user-map-root=%s " + ")" + "SUB+(" + "log-file=" DEFAULT_LOG_FILE_DIRECTORY "/" GEOREP + "*/* " + "log-level=* " + "volfile-id=* " + ")" + "MEET(" + "%s" + ")"; const char *hadoop_mnt_desc_template = - "SUP(" - "volfile-server=%s " - "client-pid=%d " - "volfile-id=%s " - "user-map-root=%s " - ")" - "SUB+(" - "log-file="DEFAULT_LOG_FILE_DIRECTORY"/"GHADOOP"*/* " - "log-level=* " - ")"; + "SUP(" + "volfile-server=%s " + "client-pid=%d " + "volfile-id=%s " + "user-map-root=%s " + ")" + "SUB+(" + "log-file=" DEFAULT_LOG_FILE_DIRECTORY "/" GHADOOP + "*/* " + "log-level=* " + ")"; int -make_georep_mountspec (gf_mount_spec_t *mspec, const char *volnames, - char *user) +make_georep_mountspec(gf_mount_spec_t *mspec, const char *volnames, char *user) { - char *georep_mnt_desc = NULL; - char *meetspec = NULL; - char *vols = NULL; - char *vol = NULL; - char *p = NULL; - char *savetok = NULL; - char *fa[3] = {0,}; - size_t siz = 0; - int vc = 0; - int i = 0; - int ret = 0; - - vols = gf_strdup ((char *)volnames); - if (!vols) - goto out; - - for (vc = 1, p = vols; *p; p++) { - if (*p == ',') - vc++; + char *georep_mnt_desc = NULL; + char *meetspec = NULL; + char *vols = NULL; + char *vol = NULL; + char *p = NULL; + char *savetok = NULL; + char *fa[3] = { + 0, + }; + size_t siz = 0; + int vc = 0; + int i = 0; + int ret = 0; + + vols = gf_strdup((char *)volnames); + if (!vols) + goto out; + + for (vc = 1, p = vols; *p; p++) { + if (*p == ',') + vc++; + } + siz = strlen(volnames) + vc * SLEN("volfile-id="); + meetspec = GF_CALLOC(1, siz + 1, gf_gld_mt_georep_meet_spec); + if (!meetspec) + goto out; + + for (p = vols;;) { + vol = strtok_r(p, ",", &savetok); + if (!vol) { + GF_ASSERT(vc == 0); + break; } - siz = strlen (volnames) + vc * SLEN ("volfile-id="); - meetspec = GF_CALLOC (1, siz + 1, gf_gld_mt_georep_meet_spec); - if (!meetspec) - goto out; - - for (p = vols;;) { - vol = strtok_r (p, ",", &savetok); - if (!vol) { - GF_ASSERT (vc == 0); - break; - } - p = NULL; - strcat (meetspec, "volfile-id="); - strcat (meetspec, vol); - if (--vc > 0) - strcat (meetspec, " "); - } - - ret = gf_asprintf (&georep_mnt_desc, georep_mnt_desc_template, - GF_CLIENT_PID_GSYNCD, user, meetspec); - if (ret == -1) { - georep_mnt_desc = NULL; - goto out; - } - - ret = parse_mount_pattern_desc (mspec, georep_mnt_desc); - - out: - fa[0] = meetspec; - fa[1] = vols; - fa[2] = georep_mnt_desc; - - for (i = 0; i < 3; i++) { - if (fa[i] == NULL) - ret = -1; - else - GF_FREE (fa[i]); - } - - return ret; + p = NULL; + strcat(meetspec, "volfile-id="); + strcat(meetspec, vol); + if (--vc > 0) + strcat(meetspec, " "); + } + + ret = gf_asprintf(&georep_mnt_desc, georep_mnt_desc_template, + GF_CLIENT_PID_GSYNCD, user, meetspec); + if (ret == -1) { + georep_mnt_desc = NULL; + goto out; + } + + ret = parse_mount_pattern_desc(mspec, georep_mnt_desc); + +out: + fa[0] = meetspec; + fa[1] = vols; + fa[2] = georep_mnt_desc; + + for (i = 0; i < 3; i++) { + if (fa[i] == NULL) + ret = -1; + else + GF_FREE(fa[i]); + } + + return ret; } int -make_ghadoop_mountspec (gf_mount_spec_t *mspec, const char *volname, - char *user, char *server) +make_ghadoop_mountspec(gf_mount_spec_t *mspec, const char *volname, char *user, + char *server) { - char *hadoop_mnt_desc = NULL; - int ret = 0; + char *hadoop_mnt_desc = NULL; + int ret = 0; - ret = gf_asprintf (&hadoop_mnt_desc, hadoop_mnt_desc_template, - server, GF_CLIENT_PID_HADOOP, volname, user); - if (ret == -1) - return ret; + ret = gf_asprintf(&hadoop_mnt_desc, hadoop_mnt_desc_template, server, + GF_CLIENT_PID_HADOOP, volname, user); + if (ret == -1) + return ret; - return parse_mount_pattern_desc (mspec, hadoop_mnt_desc); + return parse_mount_pattern_desc(mspec, hadoop_mnt_desc); } static gf_boolean_t -match_comp (char *str, char *patcomp) +match_comp(char *str, char *patcomp) { - char *c1 = patcomp; - char *c2 = str; - - GF_ASSERT (c1); - GF_ASSERT (c2); - - while (*c1 == *c2) { - if (!*c1) - return _gf_true; - c1++; - c2++; - if (c1[-1] == '=') - break; - } - - return fnmatch (c1, c2, 0) == 0 ? _gf_true : _gf_false; + char *c1 = patcomp; + char *c2 = str; + + GF_ASSERT(c1); + GF_ASSERT(c2); + + while (*c1 == *c2) { + if (!*c1) + return _gf_true; + c1++; + c2++; + if (c1[-1] == '=') + break; + } + + return fnmatch(c1, c2, 0) == 0 ? _gf_true : _gf_false; } struct gf_set_descriptor { - gf_boolean_t priv[2]; - gf_boolean_t common; + gf_boolean_t priv[2]; + gf_boolean_t common; }; static int -_gf_set_dict_iter1 (char *val, void *data) +_gf_set_dict_iter1(char *val, void *data) { - void **dataa = data; - struct gf_set_descriptor *sd = dataa[0]; - char **curs = dataa[1]; - gf_boolean_t priv = _gf_true; - - while (*curs) { - if (match_comp (val, *curs)) { - priv = _gf_false; - sd->common = _gf_true; - } - curs++; + void **dataa = data; + struct gf_set_descriptor *sd = dataa[0]; + char **curs = dataa[1]; + gf_boolean_t priv = _gf_true; + + while (*curs) { + if (match_comp(val, *curs)) { + priv = _gf_false; + sd->common = _gf_true; } + curs++; + } - if (priv) - sd->priv[0] = _gf_true; + if (priv) + sd->priv[0] = _gf_true; - return 0; + return 0; } static int -_gf_set_dict_iter2 (char *val, void *data) +_gf_set_dict_iter2(char *val, void *data) { - void **dataa = data; - gf_boolean_t *boo = dataa[0]; - char *comp = dataa[1]; + void **dataa = data; + gf_boolean_t *boo = dataa[0]; + char *comp = dataa[1]; - if (match_comp (val, comp)) - *boo = _gf_true; + if (match_comp(val, comp)) + *boo = _gf_true; - return 0; + return 0; } static void -relate_sets (struct gf_set_descriptor *sd, dict_t *argdict, char **complist) +relate_sets(struct gf_set_descriptor *sd, dict_t *argdict, char **complist) { - void *dataa[] = {NULL, NULL}; - gf_boolean_t boo = _gf_false; + void *dataa[] = {NULL, NULL}; + gf_boolean_t boo = _gf_false; - memset (sd, 0, sizeof (*sd)); + memset(sd, 0, sizeof(*sd)); - dataa[0] = sd; - dataa[1] = complist; - seq_dict_foreach (argdict, _gf_set_dict_iter1, dataa); + dataa[0] = sd; + dataa[1] = complist; + seq_dict_foreach(argdict, _gf_set_dict_iter1, dataa); - while (*complist) { - boo = _gf_false; - dataa[0] = &boo; - dataa[1] = *complist; - seq_dict_foreach (argdict, _gf_set_dict_iter2, dataa); + while (*complist) { + boo = _gf_false; + dataa[0] = &boo; + dataa[1] = *complist; + seq_dict_foreach(argdict, _gf_set_dict_iter2, dataa); - if (boo) - sd->common = _gf_true; - else - sd->priv[1] = _gf_true; + if (boo) + sd->common = _gf_true; + else + sd->priv[1] = _gf_true; - complist++; - } + complist++; + } } static int -_arg_parse_uid (char *val, void *data) +_arg_parse_uid(char *val, void *data) { - char *user = strtail (val, "user-map-root="); - struct passwd *pw = NULL; + char *user = strtail(val, "user-map-root="); + struct passwd *pw = NULL; - if (!user) - return 0; - pw = getpwnam (user); - if (!pw) - return -EINVAL; + if (!user) + return 0; + pw = getpwnam(user); + if (!pw) + return -EINVAL; - if (*(int *)data >= 0) - /* uid ambiguity, already found */ - return -EINVAL; + if (*(int *)data >= 0) + /* uid ambiguity, already found */ + return -EINVAL; - *(int *)data = pw->pw_uid; - return 0; + *(int *)data = pw->pw_uid; + return 0; } static int -evaluate_mount_request (xlator_t *this, gf_mount_spec_t *mspec, dict_t *argdict) +evaluate_mount_request(xlator_t *this, gf_mount_spec_t *mspec, dict_t *argdict) { - struct gf_set_descriptor sd = {{0,},}; - int i = 0; - int uid = -1; - int ret = 0; - gf_boolean_t match = _gf_false; - - for (i = 0; i < mspec->len; i++) { - relate_sets (&sd, argdict, mspec->patterns[i].components); - switch (mspec->patterns[i].condition) { - case SET_SUB: - match = !sd.priv[0]; - break; - case SET_SUPER: - match = !sd.priv[1]; - break; - case SET_EQUAL: - match = (!sd.priv[0] && !sd.priv[1]); - break; - case SET_INTERSECT: - match = sd.common; - break; - default: - GF_ASSERT(!"unreached"); - } - if (mspec->patterns[i].negative) - match = !match; - - if (!match) { - gf_msg (this->name, GF_LOG_ERROR, EPERM, - GD_MSG_MNTBROKER_SPEC_MISMATCH, - "Mountbroker spec mismatch!!! SET: %d " - "COMPONENT: %d. Review the mount args passed", - mspec->patterns[i].condition, i); - return -EPERM; - } + struct gf_set_descriptor sd = { + { + 0, + }, + }; + int i = 0; + int uid = -1; + int ret = 0; + gf_boolean_t match = _gf_false; + + for (i = 0; i < mspec->len; i++) { + relate_sets(&sd, argdict, mspec->patterns[i].components); + switch (mspec->patterns[i].condition) { + case SET_SUB: + match = !sd.priv[0]; + break; + case SET_SUPER: + match = !sd.priv[1]; + break; + case SET_EQUAL: + match = (!sd.priv[0] && !sd.priv[1]); + break; + case SET_INTERSECT: + match = sd.common; + break; + default: + GF_ASSERT(!"unreached"); } + if (mspec->patterns[i].negative) + match = !match; + + if (!match) { + gf_msg(this->name, GF_LOG_ERROR, EPERM, + GD_MSG_MNTBROKER_SPEC_MISMATCH, + "Mountbroker spec mismatch!!! SET: %d " + "COMPONENT: %d. Review the mount args passed", + mspec->patterns[i].condition, i); + return -EPERM; + } + } - ret = seq_dict_foreach (argdict, _arg_parse_uid, &uid); - if (ret != 0) - return ret; + ret = seq_dict_foreach(argdict, _arg_parse_uid, &uid); + if (ret != 0) + return ret; - return uid; + return uid; } static int -_volname_get (char *val, void *data) +_volname_get(char *val, void *data) { - char **volname = data; + char **volname = data; - *volname = strtail (val, "volfile-id="); + *volname = strtail(val, "volfile-id="); - return *volname ? 1 : 0; + return *volname ? 1 : 0; } static int -_runner_add (char *val, void *data) +_runner_add(char *val, void *data) { - runner_t *runner = data; + runner_t *runner = data; - runner_argprintf (runner, "--%s", val); + runner_argprintf(runner, "--%s", val); - return 0; + return 0; } int -glusterd_do_mount (char *label, dict_t *argdict, char **path, int *op_errno) +glusterd_do_mount(char *label, dict_t *argdict, char **path, int *op_errno) { - glusterd_conf_t *priv = NULL; - char *mountbroker_root = NULL; - gf_mount_spec_t *mspec = NULL; - int uid = -ENOENT; - char *volname = NULL; - glusterd_volinfo_t *vol = NULL; - char *mtptemp = NULL; - char *mntlink = NULL; - char *cookieswitch = NULL; - char *cookie = NULL; - char *sla = NULL; - struct stat st = {0,}; - runner_t runner = {0,}; - int ret = 0; - xlator_t *this = THIS; - mode_t orig_umask = 0; - gf_boolean_t found_label = _gf_false; - - priv = this->private; - GF_ASSERT (priv); - - GF_ASSERT (op_errno); - *op_errno = 0; - - if (dict_get_strn (this->options, "mountbroker-root", - SLEN ("mountbroker-root"), - &mountbroker_root) != 0) { - *op_errno = ENOENT; - gf_msg (this->name, GF_LOG_ERROR, 0, - GD_MSG_DICT_GET_FAILED, "'option mountbroker-root' " - "missing in glusterd vol file"); - goto out; - } - - GF_ASSERT (label); - if (!*label) { - *op_errno = EINVAL; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_MNTBROKER_LABEL_NULL, - "label is NULL (%s)", - strerror (*op_errno)); - goto out; - } - - /* look up spec for label */ - cds_list_for_each_entry (mspec, &priv->mount_specs, - speclist) { - if (strcmp (mspec->label, label) != 0) - continue; - - found_label = _gf_true; - uid = evaluate_mount_request (this, mspec, argdict); - break; + glusterd_conf_t *priv = NULL; + char *mountbroker_root = NULL; + gf_mount_spec_t *mspec = NULL; + int uid = -ENOENT; + char *volname = NULL; + glusterd_volinfo_t *vol = NULL; + char *mtptemp = NULL; + char *mntlink = NULL; + char *cookieswitch = NULL; + char *cookie = NULL; + char *sla = NULL; + struct stat st = { + 0, + }; + runner_t runner = { + 0, + }; + int ret = 0; + xlator_t *this = THIS; + mode_t orig_umask = 0; + gf_boolean_t found_label = _gf_false; + + priv = this->private; + GF_ASSERT(priv); + + GF_ASSERT(op_errno); + *op_errno = 0; + + if (dict_get_strn(this->options, "mountbroker-root", + SLEN("mountbroker-root"), &mountbroker_root) != 0) { + *op_errno = ENOENT; + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "'option mountbroker-root' " + "missing in glusterd vol file"); + goto out; + } + + GF_ASSERT(label); + if (!*label) { + *op_errno = EINVAL; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_MNTBROKER_LABEL_NULL, + "label is NULL (%s)", strerror(*op_errno)); + goto out; + } + + /* look up spec for label */ + cds_list_for_each_entry(mspec, &priv->mount_specs, speclist) + { + if (strcmp(mspec->label, label) != 0) + continue; + + found_label = _gf_true; + uid = evaluate_mount_request(this, mspec, argdict); + break; + } + if (uid < 0) { + *op_errno = -uid; + if (!found_label) { + gf_msg(this->name, GF_LOG_ERROR, *op_errno, + GD_MSG_MNTBROKER_LABEL_MISS, + "Missing mspec: Check the corresponding option " + "in glusterd vol file for mountbroker user: %s", + label); } - if (uid < 0) { - *op_errno = -uid; - if (!found_label) { - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_MNTBROKER_LABEL_MISS, - "Missing mspec: Check the corresponding option " - "in glusterd vol file for mountbroker user: %s", - label); - } - goto out; + goto out; + } + + /* some sanity check on arguments */ + seq_dict_foreach(argdict, _volname_get, &volname); + if (!volname) { + *op_errno = EINVAL; + gf_msg(this->name, GF_LOG_ERROR, EINVAL, GD_MSG_DICT_GET_FAILED, + "Dict get failed for the key 'volname'"); + goto out; + } + if (glusterd_volinfo_find(volname, &vol) != 0 || + !glusterd_is_volume_started(vol)) { + *op_errno = ENOENT; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_MOUNT_REQ_FAIL, + "Either volume is not started or volinfo not found"); + goto out; + } + + /* go do mount */ + + /** create actual mount dir */ + + /*** "overload" string name to be possible to used for cookie + creation, see below */ + ret = gf_asprintf(&mtptemp, "%s/user%d/mtpt-%s-XXXXXX/cookie", + mountbroker_root, uid, label); + if (ret == -1) { + mtptemp = NULL; + *op_errno = ENOMEM; + goto out; + } + /*** hide cookie part */ + cookieswitch = strrchr(mtptemp, '/'); + *cookieswitch = '\0'; + + sla = strrchr(mtptemp, '/'); + *sla = '\0'; + ret = sys_mkdir(mtptemp, 0700); + if (ret == 0) + ret = sys_chown(mtptemp, uid, 0); + else if (errno == EEXIST) + ret = 0; + if (ret == -1) { + *op_errno = errno; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_SYSCALL_FAIL, + "Mountbroker User directory creation failed"); + goto out; + } + ret = sys_lstat(mtptemp, &st); + if (ret == -1) { + *op_errno = errno; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_SYSCALL_FAIL, + "stat on mountbroker user directory failed"); + goto out; + } + if (!(S_ISDIR(st.st_mode) && (st.st_mode & ~S_IFMT) == 0700 && + st.st_uid == uid && st.st_gid == 0)) { + *op_errno = EACCES; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_MOUNT_REQ_FAIL, + "Incorrect mountbroker user directory attributes"); + goto out; + } + *sla = '/'; + + if (!mkdtemp(mtptemp)) { + *op_errno = errno; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_SYSCALL_FAIL, + "Mountbroker mount directory creation failed"); + goto out; + } + + /** create private "cookie" symlink */ + + /*** occupy an entry in the hive dir via mkstemp */ + ret = gf_asprintf(&cookie, "%s/" MB_HIVE "/mntXXXXXX", mountbroker_root); + if (ret == -1) { + cookie = NULL; + *op_errno = ENOMEM; + goto out; + } + orig_umask = umask(S_IRWXG | S_IRWXO); + ret = mkstemp(cookie); + umask(orig_umask); + if (ret == -1) { + *op_errno = errno; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_SYSCALL_FAIL, + "Mountbroker cookie file creation failed"); + goto out; + } + sys_close(ret); + + /*** assembly the path from cookie to mountpoint */ + sla = strchr(sla - 1, '/'); + GF_ASSERT(sla); + ret = gf_asprintf(&mntlink, "../user%d%s", uid, sla); + if (ret == -1) { + *op_errno = ENOMEM; + goto out; + } + + /*** create cookie link in (to-be) mountpoint, + move it over to the final place */ + *cookieswitch = '/'; + ret = sys_symlink(mntlink, mtptemp); + if (ret != -1) + ret = sys_rename(mtptemp, cookie); + *cookieswitch = '\0'; + if (ret == -1) { + *op_errno = errno; + gf_msg(this->name, GF_LOG_ERROR, *op_errno, GD_MSG_SYSCALL_FAIL, + "symlink or rename failed"); + goto out; + } + + /** invoke glusterfs on the mountpoint */ + + runinit(&runner); + runner_add_arg(&runner, SBIN_DIR "/glusterfs"); + seq_dict_foreach(argdict, _runner_add, &runner); + runner_add_arg(&runner, mtptemp); + ret = runner_run_reuse(&runner); + if (ret == -1) { + *op_errno = EIO; /* XXX hacky fake */ + runner_log(&runner, "", GF_LOG_ERROR, "command failed"); + } + runner_end(&runner); + +out: + + if (*op_errno) { + ret = -1; + gf_msg(this->name, GF_LOG_WARNING, *op_errno, GD_MSG_MOUNT_REQ_FAIL, + "unsuccessful mount request"); + if (mtptemp) { + *cookieswitch = '/'; + sys_unlink(mtptemp); + *cookieswitch = '\0'; + sys_rmdir(mtptemp); } - - /* some sanity check on arguments */ - seq_dict_foreach (argdict, _volname_get, &volname); - if (!volname) { - *op_errno = EINVAL; - gf_msg (this->name, GF_LOG_ERROR, EINVAL, - GD_MSG_DICT_GET_FAILED, - "Dict get failed for the key 'volname'"); - goto out; - } - if (glusterd_volinfo_find (volname, &vol) != 0 || - !glusterd_is_volume_started (vol)) { - *op_errno = ENOENT; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_MOUNT_REQ_FAIL, - "Either volume is not started or volinfo not found"); - goto out; + if (cookie) { + sys_unlink(cookie); + GF_FREE(cookie); } - /* go do mount */ + } else { + ret = 0; + *path = cookie; + } - /** create actual mount dir */ + if (mtptemp) + GF_FREE(mtptemp); + if (mntlink) + GF_FREE(mntlink); - /*** "overload" string name to be possible to used for cookie - creation, see below */ - ret = gf_asprintf (&mtptemp, "%s/user%d/mtpt-%s-XXXXXX/cookie", - mountbroker_root, uid, label); - if (ret == -1) { - mtptemp = NULL; - *op_errno = ENOMEM; - goto out; - } - /*** hide cookie part */ - cookieswitch = strrchr (mtptemp, '/'); - *cookieswitch = '\0'; - - sla = strrchr (mtptemp, '/'); - *sla = '\0'; - ret = sys_mkdir (mtptemp, 0700); - if (ret == 0) - ret = sys_chown (mtptemp, uid, 0); - else if (errno == EEXIST) - ret = 0; - if (ret == -1) { - *op_errno = errno; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_SYSCALL_FAIL, - "Mountbroker User directory creation failed"); - goto out; - } - ret = sys_lstat (mtptemp, &st); - if (ret == -1) { - *op_errno = errno; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_SYSCALL_FAIL, - "stat on mountbroker user directory failed"); - goto out; - } - if (!(S_ISDIR (st.st_mode) && (st.st_mode & ~S_IFMT) == 0700 && - st.st_uid == uid && st.st_gid == 0)) { - *op_errno = EACCES; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_MOUNT_REQ_FAIL, - "Incorrect mountbroker user directory attributes"); - goto out; - } - *sla = '/'; - - if (!mkdtemp (mtptemp)) { - *op_errno = errno; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_SYSCALL_FAIL, - "Mountbroker mount directory creation failed"); - goto out; - } - - /** create private "cookie" symlink */ - - /*** occupy an entry in the hive dir via mkstemp */ - ret = gf_asprintf (&cookie, "%s/"MB_HIVE"/mntXXXXXX", - mountbroker_root); - if (ret == -1) { - cookie = NULL; - *op_errno = ENOMEM; - goto out; - } - orig_umask = umask(S_IRWXG | S_IRWXO); - ret = mkstemp (cookie); - umask(orig_umask); - if (ret == -1) { - *op_errno = errno; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_SYSCALL_FAIL, - "Mountbroker cookie file creation failed"); - goto out; - } - sys_close (ret); - - /*** assembly the path from cookie to mountpoint */ - sla = strchr (sla - 1, '/'); - GF_ASSERT (sla); - ret = gf_asprintf (&mntlink, "../user%d%s", uid, sla); - if (ret == -1) { - *op_errno = ENOMEM; - goto out; - } - - /*** create cookie link in (to-be) mountpoint, - move it over to the final place */ - *cookieswitch = '/'; - ret = sys_symlink (mntlink, mtptemp); - if (ret != -1) - ret = sys_rename (mtptemp, cookie); - *cookieswitch = '\0'; - if (ret == -1) { - *op_errno = errno; - gf_msg (this->name, GF_LOG_ERROR, *op_errno, - GD_MSG_SYSCALL_FAIL, - "symlink or rename failed"); - goto out; - } - - /** invoke glusterfs on the mountpoint */ - - runinit (&runner); - runner_add_arg (&runner, SBIN_DIR"/glusterfs"); - seq_dict_foreach (argdict, _runner_add, &runner); - runner_add_arg (&runner, mtptemp); - ret = runner_run_reuse (&runner); - if (ret == -1) { - *op_errno = EIO; /* XXX hacky fake */ - runner_log (&runner, "", GF_LOG_ERROR, "command failed"); - } - runner_end (&runner); - - out: - - if (*op_errno) { - ret = -1; - gf_msg (this->name, GF_LOG_WARNING, *op_errno, - GD_MSG_MOUNT_REQ_FAIL, - "unsuccessful mount request"); - if (mtptemp) { - *cookieswitch = '/'; - sys_unlink (mtptemp); - *cookieswitch = '\0'; - sys_rmdir (mtptemp); - } - if (cookie) { - sys_unlink (cookie); - GF_FREE (cookie); - } - - } else { - ret = 0; - *path = cookie; - } - - if (mtptemp) - GF_FREE (mtptemp); - if (mntlink) - GF_FREE (mntlink); - - return ret; + return ret; } |