Revert patches
This commit is contained in:
Dan Walsh
parent
fb3c76a451
commit
8c41a64390
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@ -0,0 +1,175 @@
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diff --git a/libsepol/include/sepol/policydb/polcaps.h b/libsepol/include/sepol/policydb/polcaps.h
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diff --git a/libsepol/src/expand.c b/libsepol/src/expand.c
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index bef759c..4663321 100644
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--- a/libsepol/src/expand.c
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+++ b/libsepol/src/expand.c
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@@ -49,6 +49,79 @@ typedef struct expand_state {
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int expand_neverallow;
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} expand_state_t;
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+struct linear_probe {
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+ filename_trans_t **table; /* filename_trans chunks with same stype */
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+ filename_trans_t **ends; /* pointers to ends of **table chunks */
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+ uint32_t length; /* length of the table */
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+};
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+
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+static int linear_probe_create(struct linear_probe *probe, uint32_t length)
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+{
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+ probe->table = calloc(length, sizeof(*probe->table));
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+ if (probe->table == NULL)
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+ return -1;
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+
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+ probe->ends = calloc(length, sizeof(*probe->ends));
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+ if (probe->ends == NULL)
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+ return -1;
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+
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+ probe->length = length;
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+
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+ return 0;
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+}
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+
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+static void linear_probe_destroy(struct linear_probe *probe)
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+{
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+ if (probe->length == 0)
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+ return;
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+
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+ free(probe->table);
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+ free(probe->ends);
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+ memset(probe, 0, sizeof(*probe));
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+}
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+
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+static void linear_probe_insert(struct linear_probe *probe, uint32_t key,
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+ filename_trans_t *data)
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+{
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+ assert(probe->length > key);
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+
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+ if (probe->table[key] != NULL) {
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+ data->next = probe->table[key];
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+ probe->table[key] = data;
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+ } else {
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+ probe->table[key] = probe->ends[key] = data;
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+ }
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+}
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+
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+static filename_trans_t *linear_probe_find(struct linear_probe *probe, uint32_t key)
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+{
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+ assert(probe->length > key);
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+
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+ return probe->table[key];
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+}
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+
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+/* Returns all chunks stored in the *probe as single-linked list */
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+static filename_trans_t *linear_probe_dump(struct linear_probe *probe,
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+ filename_trans_t **endp)
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+{
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+ uint32_t i;
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+ filename_trans_t *result = NULL;
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+ filename_trans_t *end = NULL;
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+
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+ for (i = 0; i < probe->length; i++) {
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+ if (probe->table[i] != NULL) {
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+ if (end == NULL)
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+ end = probe->ends[i];
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+ probe->ends[i]->next = result;
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+ result = probe->table[i];
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+ probe->table[i] = probe->ends[i] = NULL;
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+ }
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+ }
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+
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+ *endp = end;
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+ return result;
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+}
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+
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static void expand_state_init(expand_state_t * state)
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{
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memset(state, 0, sizeof(expand_state_t));
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@@ -1352,10 +1425,20 @@ static int copy_role_trans(expand_state_t * state, role_trans_rule_t * rules)
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static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *rules)
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{
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unsigned int i, j;
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- filename_trans_t *new_trans, *cur_trans;
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+ filename_trans_t *new_trans, *cur_trans, *end;
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filename_trans_rule_t *cur_rule;
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ebitmap_t stypes, ttypes;
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ebitmap_node_t *snode, *tnode;
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+ struct linear_probe probe;
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+
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+ /*
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+ * Linear probing speeds-up finding filename_trans rules with certain
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+ * "stype" value.
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+ */
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+ if (linear_probe_create(&probe, 4096)) { /* Assume 4096 is enough for most cases */
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+ ERR(state->handle, "Out of memory!");
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+ return -1;
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+ }
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cur_rule = rules;
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while (cur_rule) {
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@@ -1378,6 +1461,14 @@ static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *r
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mapped_otype = state->typemap[cur_rule->otype - 1];
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+ if (ebitmap_length(&stypes) > probe.length) {
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+ linear_probe_destroy(&probe);
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+ if (linear_probe_create(&probe, ebitmap_length(&stypes))) {
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+ ERR(state->handle, "Out of memory!");
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+ return -1;
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+ }
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+ }
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+
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ebitmap_for_each_bit(&stypes, snode, i) {
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if (!ebitmap_node_get_bit(snode, i))
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continue;
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@@ -1385,16 +1476,14 @@ static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *r
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if (!ebitmap_node_get_bit(tnode, j))
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continue;
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- cur_trans = state->out->filename_trans;
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- while (cur_trans) {
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- if ((cur_trans->stype == i + 1) &&
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- (cur_trans->ttype == j + 1) &&
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+ cur_trans = linear_probe_find(&probe, i);
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+ while (cur_trans != NULL) {
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+ if ((cur_trans->ttype == j + 1) &&
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(cur_trans->tclass == cur_rule->tclass) &&
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(!strcmp(cur_trans->name, cur_rule->name))) {
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/* duplicate rule, who cares */
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if (cur_trans->otype == mapped_otype)
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break;
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-
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ERR(state->handle, "Conflicting filename trans rules %s %s %s : %s otype1:%s otype2:%s",
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cur_trans->name,
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state->out->p_type_val_to_name[i],
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@@ -1402,7 +1491,7 @@ static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *r
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state->out->p_class_val_to_name[cur_trans->tclass - 1],
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state->out->p_type_val_to_name[cur_trans->otype - 1],
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state->out->p_type_val_to_name[mapped_otype - 1]);
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-
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+
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return -1;
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}
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cur_trans = cur_trans->next;
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@@ -1417,8 +1506,6 @@ static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *r
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return -1;
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}
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memset(new_trans, 0, sizeof(*new_trans));
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- new_trans->next = state->out->filename_trans;
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- state->out->filename_trans = new_trans;
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new_trans->name = strdup(cur_rule->name);
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if (!new_trans->name) {
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@@ -1429,9 +1516,14 @@ static int expand_filename_trans(expand_state_t *state, filename_trans_rule_t *r
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new_trans->ttype = j + 1;
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new_trans->tclass = cur_rule->tclass;
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new_trans->otype = mapped_otype;
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+ linear_probe_insert(&probe, i, new_trans);
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}
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}
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+ cur_trans = linear_probe_dump(&probe, &end);
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+ end->next = state->out->filename_trans;
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+ state->out->filename_trans = cur_trans;
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+
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ebitmap_destroy(&stypes);
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ebitmap_destroy(&ttypes);
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@ -1,11 +1,12 @@
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Summary: SELinux binary policy manipulation library
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Name: libsepol
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Version: 2.1.7
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Release: 1%{?dist}
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Release: 3%{?dist}
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License: LGPLv2+
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Group: System Environment/Libraries
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Source: http://www.nsa.gov/selinux/archives/libsepol-%{version}.tgz
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Patch: libsepol-rhat.patch
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Patch1: libsepol-bad.patch
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URL: http://www.selinuxproject.org
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BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
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@ -46,6 +47,7 @@ needed for developing applications that manipulate binary policies.
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%prep
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%setup -q
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%patch -p2 -b .rhat
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%patch1 -p2 -R -b .bad
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# sparc64 is an -fPIC arch, so we need to fix it here
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%ifarch sparc64
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@ -99,6 +101,12 @@ exit 0
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/%{_lib}/libsepol.so.1
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%changelog
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* Tue Jul 24 2012 Dan Walsh <dwalsh@redhat.com> - 2.1.7-3
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- Revert patches
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* Thu Jul 19 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.1.7-2
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
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* Wed Jul 4 2012 Dan Walsh <dwalsh@redhat.com> - 2.1.7-1
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- Update to upstream
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* reserve policycapability for redhat testing of ptrace child
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